CN105990895A - Power supply device, image forming device and power supply device - Google Patents
Power supply device, image forming device and power supply device Download PDFInfo
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- CN105990895A CN105990895A CN201610159280.XA CN201610159280A CN105990895A CN 105990895 A CN105990895 A CN 105990895A CN 201610159280 A CN201610159280 A CN 201610159280A CN 105990895 A CN105990895 A CN 105990895A
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- 238000010248 power generation Methods 0.000 abstract description 140
- 230000005611 electricity Effects 0.000 abstract description 25
- 238000001514 detection method Methods 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 23
- 238000009434 installation Methods 0.000 description 19
- 238000012360 testing method Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 101150024356 ADF2 gene Proteins 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00885—Power supply means, e.g. arrangements for the control of power supply to the apparatus or components thereof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a power supply which uses solar energy to generate power and supplies power to a variable load and an image forming device having the power supply device. The power supply is aimed to effectively use solar energy to generate power to charge the storage battery when using the variable load, the electric consumption quantity is variable. The power supply forms a control part (30) which calculates electricity generation power of the solar generation part (25) according to generation current (10) and generation voltage (V0) and uses the last time charging current (12 (t-1)) to subtract the load current I1 (t-1) which is detected by the current detection part 27 and subtract the load current (I1 (t)) detected by this time and then adds with prescribed weak current sigma I to solve first charging current (12 (t)); furthermore, when current power generation power (W0') is greater than generated power W0 of last time, first charging current (I2(t)) is set as charging current of a charger (28) and the generated powder maintains maximum.
Description
Technical field
The present invention relates to the electric supply installation fluctuating load of fixing heater etc powered with solar power generation,
And there is the power-saving technology in the image processing system of this electric supply installation.
Background technology
Existing image processing system can accept the solar power generation portion that is arranged on building roof too
Generating by solar provides electric power to the fluctuating load of fixing heater etc.
Above-mentioned image processing system is provided with switching switch SW, and this switching switch SW is not for having at night etc.
When sunlight cannot be carried out solar power generation, power supply source is switched to source power supply from solar power generation portion.
Patent documentation 1 (TOHKEMY 2013-61606 publication) discloses an above-mentioned image processing system of example.
Technical scheme disclosed in patent documentation 1, it is intended that certain to power consumption with solar power generation portion
Dead load directly power, detection solar power generation portion generating electric current and voltage, with the effect that generates electricity
The optimal maximum power point of rate, while dead load is powered, is powered to Reserve Power Division via charger.
The technical scheme of patent documentation 1 is as follows, i.e. detects the electric current I0 and voltage V0 in solar power generation portion,
Flowed to the electric current of charger by control, the product at electric current I0 and voltage V0 is maximum power during maximum
Point generating, thus be able to carry out solar power generation with good efficiency.
The electric current I0 that solar power generation portion provides is to be supplied to the electric current I1 of dead load and be supplied to charger
Electric current I2 sum, the size of current of the electric current I1 wherein provided to dead load is certain, therefore by controlling
The electric current I2, the generation current I0 that just can control solar power generation portion that there is provided to charger reach maximum power
Point.To this end, this technical scheme have can the advantage of implementation solar power generation effective to dead load.
But, patent documentation 1 needs with dead load as object.To this end, for fixing heater etc
Fluctuating load, when load occurs drastically to change, the response degradation on maximum electric power point, it is difficult to
After removing, in solar power generation, the electric energy that fixing heater is consumed, Reserve Power Division is filled by remaining electric energy effectively
Electricity.
To this, in the urgent need to a kind of technical scheme, it is possible to using fluctuating loads such as fixing heaters as negative
When carrying use, remaining after solar power generation will remove the electric energy of fluctuating load consumption with good efficiency
Charged in Reserve Power Division by electric energy.
Summary of the invention
The present invention is the technical scheme proposed in view of the above problems, purpose be, when use power consumption not
When being fixing fluctuating load, it is also possible to effectively with the generating in solar power generation portion, is charged in Reserve Power Division.
In order to achieve the above object, the present invention provides a kind of electric supply installation, wherein possesses following portion: light
Power Generation Section, is used for converting light energy into electric energy；Fluctuating load, when consuming the power supply of described smooth Power Generation Section,
Power consumption changes；Charging part, with default charging current, with the power supply of described smooth Power Generation Section to storage
Charge in electricity portion；Current/voltage test section, for detecting generation current and the generating voltage of described smooth Power Generation Section；
And, load current detector, the load electricity of described fluctuating load is supplied for detecting described smooth Power Generation Section
Stream, it is characterised in that be further equipped with: generated output calculating part, be used for according to described generation current and
Described generating voltage, calculates the generated output of described smooth Power Generation Section；First charging current calculating part, is used for
By last charging current, deduct the last load electricity that the described load current detector last time detects
Flow the value that obtains of difference between this present load current detected, with the Weak current of regulation it
With, obtain the first charging current；And, control portion, it is used for setting described first charging current as institute
State the charging current of charging part, make described generated output keep maximum.
Effect of the invention is that, when not being fixing fluctuating load using power consumption, it is also possible to effectively
Charged in Reserve Power Division by the generating using solar power generation portion.
Accompanying drawing explanation
Fig. 1 is the sectional view that the image processing system that first embodiment of the present invention relates to simply is constituted.
Fig. 2 is the construction module figure of the electric supply installation that first embodiment of the present invention relates to.
Fig. 3 is the flow chart that solar power generation portion is charged controlling by the control portion shown in Fig. 2.
Fig. 4 be in the electric supply installation that first embodiment of the invention relates to sunlight illuminating part to fixing heating
Supply current/voltage (IV) performance plot in solar power generation portion when device is powered.
Fig. 5 is that in the electric supply installation that first embodiment of the invention relates to, fixing heater accepts sunlight and sends out
The figure of the relation of the output power in solar power generation portion and time when electricity portion powers.
Fig. 6 is the construction module figure of the image processing system that second embodiment of the present invention relates to.
Fig. 7 is the prior art generated energy when changing fluctuating load (such as fixing heater) into from dead load
Change schematic diagram.
Detailed description of the invention
Below with reference to accompanying drawing, embodiments of the present invention are described.
In order to also be able to effectively use solar power generation portion when using the fluctuating load of consumption power value variation
Generating electricity and charge to Reserve Power Division, the present invention constitutes as follows.
I.e. a kind of electric supply installation, wherein possesses following portion: light Power Generation Section, is used for converting light energy into electricity
Energy；Fluctuating load, when consuming the power supply of described smooth Power Generation Section, power consumption changes；Charging part,
With default charging current, with the power supply of described smooth Power Generation Section, is charged in Reserve Power Division；Current/voltage test section,
For detecting generation current and the generating voltage of described smooth Power Generation Section；And, load current detector, use
In the load current detecting the described fluctuating load of supply of described smooth Power Generation Section, it is characterised in that have further
Standby: generated output calculating part, it is used for according to described generation current and described generating voltage, calculates described light
The generated output of Power Generation Section；First charging current calculating part, is used for, by last charging current, deducting institute
State the present load that the last load current that the load current detector last time detects detects with this
The value that difference between electric current obtains, with the Weak current sum of regulation, obtains the first charging current；
And, control portion, it is used for setting described first charging current charging current as described charging part, makes institute
State generated output and keep maximum.
There is above-mentioned composition, even if when using the fluctuating load of power consumption variation, it is also possible to effectively make
With the generating in solar power generation portion, is charged in Reserve Power Division.
Feature following with accompanying drawing Oak Tree the invention described above.
<the first embodiment>
Fig. 1 is the sectional view that the image processing system that first embodiment of the present invention relates to simply is constituted.
Image processing system 1 possesses ADF2, image read-out 3, writing unit 4, print unit 5, sense
Light drum 6, developing unit 7, conveyer belt 8, fixing device 9, original text platform 10.
Image processing system 1 shown in Fig. 1 is digital complex machine, carries duplicating, printing and fax etc.
Function.
This image processing system 1 is by the application software switch key being located on operating portion, it is possible to switch to successively
Copy function, printing function and facsimile function, select to print for duplicating mode, selection during copy function
For printing mode during function, select to be fax mode during facsimile function.
Below with reference to Fig. 1, citing summary is that image during duplicating mode is formed selecting image processing system 1
Flow process.
Under duplicating mode, contribution is sent to image read-out 3 by ADF2 successively, this image read-out 3
Image information is read from each page contribution.Then, image information is through image processing part, by writing unit 4
Be converted to optical information.From writing unit 4 optical information through charger (not shown) charge rear surface
It is exposed in the photosensitive drums 6 of uniform charged, forms electrostatic latent image.Then, the electrostatic in photosensitive drums 6 is dived
As being developed by developing unit 7, become toner image.This toner image is transferred to by conveyer belt 8
After on transfer paper, fixing through fixing device 9, it is fixed on transfer paper.Finally, through toner figure
As the transfer paper of transfer is discharged to outside image processing system 1.
Image processing system 1 shown in Fig. 1 is the black and white mode device only arranging a photosensitive drums, but also
Can be have and form the toner images such as yellow, redness, blueness, black respectively 4 photosensitive drums 6,
The color image forming device that shades of colour overlap is transferred on transfer paper.
Fig. 2 is the construction module figure of the electric supply installation 20 that first embodiment of the present invention relates to.Shown in Fig. 1
Image processing system 1 use this electric supply installation 20.
Fluctuating load in present embodiment is fixing heater.It is configured to use the sun for this electric supply installation 20
Light Power Generation Section 25 generates electricity, and directly powers to the fluctuating load of fixing heater etc.
Electric supply installation 20 has source power supply 21, rectification circuit 22, switch SW1, fixing heater driving
Portion 23, fixing heater 24, solar power generation portion 25, current/voltage test section 26, current detecting part 27,
Charger 28, Reserve Power Division 29, control portion 30.
Source power supply 21 is the alternating current power supply of such as 100V or 200V, such as, provided by Utilities Electric Co..
The alternating current that source power supply 21 is provided by rectification circuit 22 carries out rectification, and then electricity container is put down
Sliding process, thus obtain the unidirectional current that magnitude of voltage keeps certain.
Before switch SW1 is located at fixing heater drive division 23, solar power generation portion 25 and source power supply
The outfan of 21 respectively with switch SW1 input (terminal above SW1 and the terminal of lower section in Fig. 2)
It is connected, the public end (in Fig. 2 terminal) on the right side of SW1 of switch SW1 and fixing heater drive division 23
It is connected.Switch SW1 is not for when having solar power generation night etc., by power supply source from solar power generation
Portion 25 is switched to source power supply 21.
Fixing heater drive division 23 will be used for connecting/disconnecting the fixing relay or three of fixing heater 24
Two-way gate-controlled switch is held to be located at outfan, according to the control signal in control portion 30, defeated by ON/OFF control
Go out fixing relay or the three terminal bidirectional gate-controlled switch of end, provide/block to fixing heater 24 via switch
SW1 direct current supply.
Fixing heater 24 is located at the inside of fixing device 9, by fixing heat driven portion 23 power supplying and heating.
This fixing heater 24 is fluctuating load, and its power consumption changes.
Solar power generation portion 25 is arranged on the roof of building, top layer, side etc., multiple by having
Generating battery panel generating produce unidirectional current, this unidirectional current via house wiring to image processing system 1
Power supply.
Current/voltage test section 26 is used for detecting the generation current (I0) in solar power generation portion 25 and generating electricity
Pressure (V0), and A/D converter 30a testing result being respectively outputted in control portion 30.
Current detecting part 27 is used for detecting solar power generation portion 25 via fixing heater drive division 23 to fixing
The load current value I1 of the fixing heater 24 that heater 24 provides, and testing result is exported control portion
A/D converter section 30a in 30.
Charger 28 is DC/DC transducer, plays the effect of constant-current power supply, sets in control portion 30 and fills
After electricity current value, DC/DC transducer carries out DC-to-dc conversion to the power supply in solar power generation portion 25, makes
The size of current that must flow to Reserve Power Division 29 becomes the current value that this charging current value is specified, and stores for Reserve Power Division 29
Electricity.
Reserve Power Division 29 is battery, saves and preserve the power supply via charger 28, simultaneously at solar power generations such as nights
During the generation deficiency in portion 25, power to image processing system 1.
Control portion 30 have A/D converter section 30, CPU (Central Processing Unit) portion 30b and
Storage part 30c.
The sampling clock of A/D converter section 30a specified period is to from current/voltage test section 26 and electric current
Current signal and the voltage signal of test section 27 are sampled, and are converted to current value or magnitude of voltage represent number
According to rear output.The sampling rate of A/D converter section 30 is required to follow the current variation of fixing heater 24,
Such as in the range of 100ms to 500ms.
It is provided with ROM and RAM inside CPU portion 30b, is deployed into RAM from ROM read operation system and opens
Dynamic operating system, under the management of operating system, from ROM reading program, carries out data and processes.
Generation current IO that CPU portion 30b provides according to the solar power generation portion 25 that detects, generating voltage V0,
And the testing result of the load current I1 of fixing heater 24, control charging current I2 of charger 28.
Storage part 30c has RAM, preserves last fixing heater with rewritable form in RAM
The current value data of 24.
CPU portion 30 controls relay and three terminal bidirectional switch etc for driving fixing roller/fixing heater 24
Fixing heater drive division 23, but the control of fixing heater 24 independent of, will not be by solar power generation
The detection knot of the load current value I1 of generation current I0, generating voltage V0 and the fixing heater in portion 25
The impact of fruit.
Fig. 3 is the flow chart that solar power generation portion 25 is charged controlling by the control portion 30 shown in Fig. 2.
Here, set step S1 to be in non-driven state to fixing heater in step S3 24.
First in step S1, the charging current value I2 of charger 28 is set as that fixed value is (just by control portion 30
Initial value), start to charge up.Its result is to charge to Reserve Power Division 29 via charger 28 with I2.
In step S2, control portion 30 is under the charged state that step S1 sets, with electric current/voltage detection department 26
And A/D converter 30a detects generation current I0 and generating voltage V0 in solar power generation portion 25.
In step S3, measurement result generating voltage V0 of control portion 30 calculation procedure S2 and generation current I0's
Product, calculates the generated output W0 in solar power generation portion 25, and is saved in the RAM of storage part 30c.
W0=V0 × I0 (1)
In step S4, control portion 30 current detecting part 27 and A/D converter 30a measure solar power generation
The load current value I1 that portion 25 provides to fixing heater 24.Set at this, this load current measured
Value is I1 (t), and the last load current value measured is I1 (t-1).
In step S5, control portion 30 sets the charging current value that solar power generation portion 25 provides to charger 25
I2 (t) is, last charging current value I2 (t-1) deducts the load current value I1 (t-1) of last mensuration
And the difference { I1 (t)-I1 (t-1) } between this load current value I1 (t) measured, adds certain
Small electric flow valuve σ I.Here, set the charging as I2 (t), during last mensuration of the current charging current value
Current value is I2 (t-1), and the most current charging current value I2 (t) can be expressed as,
I2 (t)=I2 (t-1)-{ I1 (t)-I1 (t-1) }+σ I (2)
Now, charger 28 is carried out Given current controller by control portion 30, the electric current I2 (t set with step S5
) charger 28 is charged.In other words, control portion 30 sets the filling of DC/DC transducer constituting charger 28
Electricity current value is I2 (t).
About the setting of above-mentioned small electric flow valuve σ I, a year can provided by solar power generation portion 25 with
Interior meansigma methods I0ave of generation current I0 and the worth product of such as 1/100 to 1/1000 try to achieve small electric
Flow valuve.
In step S6, control portion 30 is under the charged state that step S5 sets, i.e. by electric current/voltage detecting
Portion 26 and A/D converter 30a measure generating voltage V0 of sunlight illuminating part 25 when step S5 '
With generation current I0 '.
In step S7, control portion 30 according to the measurement result of step S6 (generating voltage V0 ', generation current
I0 '), calculate the generated output W0 ' in solar power generation portion 25, and be saved in the RAM of storage part 30c
In.
In step S8, control portion 30 is by the generated output W0 ' in current solar power generation portion 25 and last
The generated output W0 in solar power generation portion 25 compares, if the generating merit in current solar power generation portion 25
Rate W0 ' relatively big, then return S4, and if the generated output W0 in last solar power generation portion 25 is relatively big,
Then enter S9.
In step S8, the generated output W0 ' in relatively current solar power generation portion 25 of control portion 30 and last time
Solar power generation portion 25 generated output W0 after, the most further with current solar power generation portion 25 send out
Electrical power W0 ' rewrite the generated output W0 in solar power generation portion 25 of last time, it is saved in storage part
In the RAM of 30c, generated output value W0 is so kept to be always last look.And then, control portion 30 than
Current load current value I1 (t) detected compared with current detecting part 27 and the last load detected
After current value I1 (t-1), it is rewritten on I1 (t-1) with I1 (t), using I1 (t) as I1 (t-1)
It is saved in the RAM in storage part 30c, in order to update the value of load current I1 (t-1) so that load electricity
Stream I1 (t-1) remains last look.
By the control of above-mentioned steps S4 to step S8, solar power generation value almost returns maximum electricity in moment
Power points, therefore, solar power generation power there is no loss, and generating efficiency is good.
In step S9, control portion 30 current detecting part 27 measures the load current value I1 of fixing heater 24.
Setting at this, this load current value measured is I1 (t), and the last load current value measured is I1
(t-1).In step S10, control portion 30 makes charging current I2 (t) of charger 28 to be, last
The load current value I1 (t-1) that charging current value I2 (t-1) deducts last mensuration is negative with what this measured
Difference { I1 (t)-I1 (t-1) } between set current value I1 (t), then deduct certain small electric flow valuve σ
I.When setting present charging current value as I2 (t), when last charging current value is I2 (t-1), currently fill
Electricity current value is that I2 (t) can be expressed as,
I2 (t)=I2 (t-1)-{ I1 (t)-I1 (t-1) }-σ I (3)
Now, constant current controlling carried out by charger 28 by control portion 30, and the charging current of charger 28 is step
Electric current I2 (t) that rapid S10 sets.In other words, the DC/DC of control portion 30 setting composition charger 28 turns
The charging current value of parallel operation is I2 (t).
In step S11, control portion 30 is under the charged state that step S10 sets, with electric current/voltage detection department
26 and A/D converter 30a generating voltages V0 measuring solar power generation portion 25 ' and generation current I0 '.
In step S12, control portion 30 according to the measurement result of step S11 (generating voltage V0 ' and generating electricity
Stream I0 '), calculate the generated output W0 ' in solar power generation portion 25, and be saved in the RAM of storage part 30c
In.
In step S13, control portion 30 contrasts the generated output W0 ' and upper in current solar power generation portion 25
The generated output W0 in secondary solar power generation portion 25, if the generated output in current solar power generation portion 25
W0 ' is relatively big, then return S9, and if the generated output W0 in last solar power generation portion 25 is relatively big,
Then return S4.Although it addition, do not describe in flow process, in step S13, control portion 30 contrasts the current sun
After the generated output W0 ' of light the Power Generation Section 25 and generated output W0 in last solar power generation portion 25,
Sending out of last solar power generation portion 25 is rewritten with the generated output W0 ' in current solar power generation portion 25
Electrical power W0, is saved in the RAM of storage part 30c, keeps generated output value W0 to be always last look.
And then, control portion 30 compare current load current value I1 (t) that current detecting part 27 detects and
After the load current value I1 (t-1) that last time detects, it is rewritten on I1 (t-1) with I1 (t), will
I1 (t) is saved in the RAM in storage part 30c as I1 (t-1), in order to update load current I1 (t-1)
Value so that load current I1 (t-1) remains last look.
By the control of above-mentioned steps S4 to step S8, solar power generation value almost returns maximum electricity in moment
Power points, therefore, solar power generation value there is no loss, it is possible to good efficiency power generation.
Fig. 4 be in the electric supply installation 20 that first embodiment of the invention relates to sunlight illuminating part 25 to fixing
Supply current/voltage (IV) performance plot in solar power generation portion 25 during heater 24 (fluctuating load) power supply.
As shown in Figure 4, when the consumption electric current in fluctuating load becomes I1 ' from I1, solar power generation portion 25
Supply current also become I0 ' from I0.Its result, solar power generation value is from maximum power point Pmax significantly
Degree is slipped to power points P1.
On power points P1 shown in Fig. 4, owing to the consumption electric current I1 in fluctuating load becomes I1 ', thus make
Obtain I0 and become I0 ', away from maximum power point Pmax.
But, present embodiment current detecting part 27 detect fixing heater 24 consumption electric current (I1 and
I1 '), therefore control portion 30 control the electric current that the charging current of charger 28 becomes I2 ' from I2 reduce (
Rise) measure as becoming electric current rising (decline) amount of I1 ' at load current from I1, the most almost can moment
Return to maximum electric power point Pmax, for this solar power generation value almost without loss, it is possible to good effect
Rate generates electricity.
Shown in transition state P2 shown in Fig. 4, for detecting the electric current (I1 and I1 ') of fixing heater 24,
Be thus able to carry out the charging current making charger 28 from I2 become the electric current of I2 ' reduce (rising) amount be
The electric current that load current becomes I1 ' from I1 rises the control that (decline) measures, and moment returns to maximum electric power point
Pmax, with good efficiency power generation.
Fig. 5 is fixing heater 24 (fluctuating load) in the electric supply installation 20 that first embodiment of the invention relates to
Accept the figure of the relation of the output power in solar power generation portion 25 and time when solar power generation portion 25 powers.
As it is shown in figure 5, the power generation values when the such fluctuating load of fixing heater 24 changes changed
Cheng Zhong, as described in Fig. 4, during the variation of fluctuating load electrical power (reason for fluctuation is that electric current I1 becomes I1 ')
Solar power generation power changes, away from maximum electric power point.
To this, by carrying out above-mentioned steps S4 and S5, and S9 and S10, electrical power point moment returns
Big electrical power point Pmax, to this end, solar power generation power is almost without loss, it is possible to good efficiency
Generating.It is to say, there is generation in the technical scheme of patent documentation 1 hardly in present embodiment
Power generation loss.
<the second embodiment>
Fig. 6 is the construction module figure of the image processing system 40 that second embodiment of the present invention relates to.At this
Omit the description in Fig. 6 with the parts with Fig. 1 same-sign.
Module map shown in Fig. 6 is characterised by, deletes current detecting part 27 from the module map shown in Fig. 2,
And add the unfixed direct thermal resistance 33 of detection fixing temperature and the ambient temperature of detection image processing system 1
Ambient temperature test section 34.
According to the fixing power consumption data in the ROM being saved in storage part 30c, it was predicted that fixing heater controls
The fixing heater electric current made, thus identical with the first embodiment, it is possible to and moment returns maximum electric power
Point Pmax, solar power generation power is almost without loss, it is possible to good efficiency power generation.
And then, detecting ambient temperature by ambient temperature test section 34, preserve in raising storage part 30c determines
The precision of shadow power consumption data, solar power generation rate more will not be lost, with good efficiency power generation.
Fig. 7 is the generating in prior art when dead load changes fluctuating load (such as fixing heater 24) into
Changed power schematic diagram.
As it is shown in fig. 7, the power consumption of fluctuating load changes, (reason for fluctuation is load current to prior art
I1 ' is become from I1) time, solar power generation power leaves maximum electric power point W0, and returns maximum electric work
The reasonable time in that rate point W0 needing, during this period cannot be with good electrical power (electrical power of oblique line portion)
Effectively generating (has that is lacked this part) in the electrical power of charging.
To this end, in the case of using such as the fluctuating load of fixing heater 24, above-mentioned solar power generation merit
Rate cannot be with good efficiency power generation.
The technical scheme that patent documentation 1 discloses is for changing into such as fixing heater etc from dead load
The scheme of solar power generation during fluctuating load, owing to being fluctuating load, load current after I1 becomes I1 ',
The generation current in solar power generation portion 25 also changes I0 ' into from I0, and its result makes solar power generation value away from
Big electrical power point.To this, the most gradually change and flow to the electric current I2 of charger 28 to detect maximum electric power
Point, but owing to responsiveness is poor, require time for getting to maximum electric power point, or reaching maximum
The load of electrical power point last time changes further, thus is unable to reach maximum electric power point, thus not
Solar power generation can be carried out with good efficiency.
And present embodiment is different from above-mentioned prior art, detect fixing heater with unfixed direct thermal resistance 33
24 temperature, according to the temperature information of unfixed direct thermal resistance 33, fixing by fixing heater control portion 30
Control so that when the load of fixing heater 24 changes, except detection solar power generation portion 25
Beyond current/voltage detection, detect the electric current of fixing heater 24 the most further so that solar power generation merit
In the electric current of the maximum electric power point Pmax of rate, minimizing (increasing) the amount phase of the charging current of charger 28
Measure when the electric current in the fixing heater 24 detected increases (minimizing), thus solar power generation power
Instantaneous return maximum electric power point Pmax, it is achieved effectively generate electricity.Even if to this end, fixing heater 24 etc
Fluctuating load occur drastically to change, present embodiment also is able to change the filling of charger 28 for amount of change
Electricity value, holding maximum electric power point Pmax generates electricity, and effectively uses solar power generation, it is achieved energy-conservation.
<composition of embodiments of the present invention example, effect, effect>
<first kind of way>
The electric supply installation 20 of the manner possesses following portion: solar power generation portion 25 (light Power Generation Section), uses
In converting light energy into electric energy；Fixing heater 24 (fluctuating load), is using solar power generation portion 25
Power supply time, power consumption changes；Charger 28 (charging part), with default charging current, uses
Reserve Power Division 29 is charged by the power supply in solar power generation portion 25；Current/voltage test section 28 (current/voltage
Test section), for detecting generation current and the generating voltage in solar power generation portion 25；And, electric current is examined
Survey portion 27 (load current detector), supplies fixing heater 24 for detecting solar power generation portion 25
Load current, it is characterised in that be further equipped with: control portion 30 (generated output calculating part), is used for
According to generation current I0 and generating voltage V0, calculate the generated output in solar power generation portion 25；Control portion 30
(the first charging current calculating part), for last charging current I2 (t-1), deducting current detecting
Between load current I1 (t-1) and this load current I1 (t) detected that portion 27 last time detects
The value that obtains of difference, with the Weak current σ I sum of regulation, obtain the first charging current；And,
Control portion 30 (control portion), is used for setting first charging current charging current I2 (t) as charger 28,
Control generated output and keep maximum.
The manner, with last charging current I2 (t-1), deducts what current detecting part 27 last time detected
The value that difference between load current I1 (t-1) and this load current I1 (t) detected obtains, with
The Weak current σ I sum of regulation, obtains the first charging current, sets this first charging current as filling
Charging current I2 (t) of electrical equipment 28, controls generating high power W and remains maximum.Even if so making
In the case of fluctuating load with power consumption variation, it is also possible to effectively with the generating in solar power generation portion 25
Charge to Reserve Power Division 29, make solar power generation realize the efficiency power generation almost without loss.
<second way>
The electric supply installation 20 of the manner is characterised by, possesses and is further equipped with control portion 30 (the second charging
Current calculation portion), for last charging current I2 (t-1), deducting current detecting part 27 last
Difference between the load current I1 (t-1) and this load current I1 (t) detected that detect obtains
Value, with the difference of Weak current σ I of regulation, obtain the second charging current I2 (t), set this
Two charging currents I2 (t) are the charging current of charger 28, control generated output and keep maximum.
The manner is with last charging current I2 (t-1), and deduct that current detecting part 27 last time detects is negative
Carry the value that the difference between electric current I1 (t-1) and this load current I1 (t) detected obtains, with rule
The difference of fixed Weak current σ I, obtains the second charging current I2 (t), sets this second charging current
I2 (t) is the charging current of charger 28, controls generating high power W and remains maximum.Even if so
In the case of the fluctuating load using power consumption variation, it is also possible to effectively with solar power generation portion 25
Generating is charged to Reserve Power Division 29, makes solar power generation realize the efficiency power generation almost without loss.
<the third mode>
The manner is characterised by, the first charging current is being set as the charging of charger 28 by control portion 30
During electric current I2 (t), if current generated output W0 ' is more than last generated output W0, the most again count
Calculate described first charging current, the first charging current again calculated is set as the charged electrical of charger 28
Stream I2 (t), controls generated output and keeps maximum.
The manner when the first charging current value being set as charging current I2 (t) of charger 28, if
Current generated output W0 ' more than last generated output W0, then recalculates described first charging current,
Again the first charging current calculated is set as charging current I2 (t) of charger 28, controls generating merit
Rate keeps maximum.Even if so in the case of the fluctuating load using power consumption variation, it is also possible to have
Effect solar power generation portion, ground 25 generating charge to Reserve Power Division 29, make solar power generation realization almost without
The efficiency power generation of loss.
<the 4th kind of mode>
The manner is characterised by, the second charging current is being set as the charging of charger 28 by control portion 30
During electric current I2 (t), if current generated output W0 ' is more than last generated output W0, the most again count
Calculate described second charging current, the second charging current again calculated is set as the charged electrical of charger 28
Stream I2 (t), controls generated output and keeps maximum.
The manner when the second charging current value being set as charging current I2 (t) of charger 28, if
Current generated output W0 ' more than last generated output W0, then recalculates described second charging current,
Again the second charging current calculated is set as charging current I2 (t) of charger 28, controls generating merit
Rate keeps maximum.Even if so in the case of the fluctuating load using power consumption variation, it is also possible to have
Effect solar power generation portion, ground 25 generating charge to Reserve Power Division 29, make solar power generation realization almost without
The efficiency power generation of loss.
<fifth procedure>
The manner is characterised by, in charging current I2 (t) that the first charging current is set as charger 28
Time, if current generated output WO ' is less than last generated output WO, then control portion 30 sets second
Charging current is charging current I2 (t) of charger 28, controls generated output and keeps maximum.
The manner when the first charging current value being set as charging current I2 (t) of charger 28, if
Current generated output WO ' is less than last generated output WO, then control portion 30 sets the second charging current
For charging current I2 (t) of charger 28, control generated output and keep maximum.Even if so using
In the case of the fluctuating load of power consumption variation, it is also possible to effectively with the generating in solar power generation portion 25 to
Charging in Reserve Power Division 29, makes solar power generation realize the efficiency power generation almost without loss.
<the 6th kind of mode>
The manner is characterised by, in charging current I2 that the first charging current value is set as charger 28
T, time (), if current generated output WO ' is less than last generated output WO, then control portion 30 sets
First charging current is charging current I2 (t) of charger 28, controls generated output and keeps maximum.
The manner when the first charging current value being set as charging current I2 (t) of charger 28, as
The current generated output WO ' of fruit is less than last generated output WO, then control portion 30 sets the first charged electrical
Stream is charging current I2 (t) of charger 28, controls generated output W and remains maximum.Even if so
In the case of the fluctuating load using power consumption variation, it is also possible to effectively with solar power generation portion 25
Generating is charged to Reserve Power Division 29, makes solar power generation realize the efficiency power generation almost without loss.
<the 7th mode>
The manner is characterised by, fluctuating load is fixing heater.
Even if the manner is in the case of fluctuating load is fixing heater 24, it is also possible to effectively with too
The generating in generating by solar portion 25 is charged to Reserve Power Division 29.
<eighth mode>
The image processing system 1 of the manner is characterised by, possesses first method to any one in the 7th mode
Plant the electric supply installation 20 described in mode.
The image processing system 1 of the manner is owing to possessing electric supply installation 20, therefore, it is possible to effectively use the sun
The generating of light Power Generation Section 25, the most energy-conservation.
<the 9th mode>
The method of supplying power to of the manner is for possessing the electric supply installation in following portion: i.e. possess: solar power generation
Portion 25 (light Power Generation Section), is used for converting light energy into electric energy；Fixing heater 24 (fluctuating load),
When using the power supply in solar power generation portion 25, (variation is negative for the fixing heater 24 that power consumption changes
Carry)；Charger 28 (charging part), the charged electrical being predetermined with the delivery in solar power generation portion 25
Reserve Power Division 29 is charged by flow valuve；Current/voltage test section 28 (current/voltage adds survey portion), is used for examining
Survey for detecting electricity-generating circuit and the generating voltage that solar power generation portion 25 provides；Current detecting part 27 is (negative
Carry current detecting part), the load current of fixing heater 24 is provided to for detecting sun Power Generation Section 25；
This method of supplying power to is characterised by, possesses following steps: generated output calculation procedure (S3), according to sending out
Electricity electric current I0 and generating voltage V0, calculate the generated output in solar power generation portion 25；First charged electrical flowmeter
Calculating step, with last charging current I2 (t-1), deduct that current detecting part 27 last time detects is negative
Carry the value that the difference between electric current I1 (t-1) and this load current I1 (t) detected obtains, with rule
Fixed Weak current σ I sum, obtains the first charging current；And, rate-determining steps, set first
Charging current is charging current I2 (t) of charger 28, controls generated output and keeps maximum.
The manner, with last charging current I2 (t-1), deducts what current detecting part 27 last time detected
Value that between load current I1 (t-1) and this load current I1 (t) detected, difference obtains and regulation
Weak current σ I sum, obtain the first charging current, and at current generated output W0 ' more than upper
During generated output W0, set first charging current charging current I2 (t) as charger 28, control
Generating high power W remains maximum.Even if so in the situation of the fluctuating load using power consumption variation
Under, it is also possible to effectively charge to Reserve Power Division 29 with the generating in solar power generation portion 25, make solar power generation
Realize the efficiency power generation almost without loss.
<the tenth mode>
The program of the manner is characterised by, allows processor carry out every step of the 7th mode.
The manner can allow processor carry out every step, even if so in the change using power consumption variation
In the case of dynamic load, it is also possible to effectively charge to Reserve Power Division 29 with the generating in solar power generation portion 25,
Solar power generation is made to realize the efficiency power generation almost without loss.
Claims (9)
1. an electric supply installation, wherein possesses following portion:
Light Power Generation Section, is used for converting light energy into electric energy；
Fluctuating load, when consuming the power supply of described smooth Power Generation Section, power consumption changes；
Charging part, with default charging current, charges to Reserve Power Division with the power supply of described smooth Power Generation Section；
Current/voltage test section, for detecting generation current and the generating voltage of described smooth Power Generation Section；
And,
Load current detector, supplies the load of described fluctuating load for detecting described smooth Power Generation Section
Electric current,
It is characterized in that, be further equipped with:
Generated output calculating part, is used for, according to described generation current and described generating voltage, calculating institute
State the generated output of light Power Generation Section；
First charging current calculating part, is used for, by last charging current, deducting described load current
The present load current that the last load current that the test section last time detects detects with this
Between the value that obtains of difference, with the Weak current sum of regulation, obtain the first charging current；
And,
Control portion, is used for setting described first charging current as the charging current of described charging part, makes
Described generated output keeps maximum.
Electric supply installation the most according to claim 1, it is characterised in that
It is further equipped with the second charging current calculating part, for by described last charging current, subtracting
Go the value that the difference between described last load current and described present load current obtains, with rule
The difference of fixed Weak current, obtains the second charging current,
Described control portion sets described second charging current charging current as described charging part, makes institute
State generated output and keep maximum.
Electric supply installation the most according to claim 2, it is characterised in that described control portion is by described
When one charging current is set as the charging current of described charging part, if described generated output calculating part
The current generated output obtained is more than a front generated output, then recalculate described first charged electrical
Stream, is set as the charging current of described charging part by the first charging current again obtained, and makes described
Generated output keeps maximum.
Electric supply installation the most according to claim 2, it is characterised in that described control portion is by described
When two charging currents are set as the charging current of described charging part, if described generated output calculating part
The current generated output obtained is more than a front generated output, then recalculate described second charged electrical
Stream, is set as this second charging current again calculated the charging current of described charging part, makes institute
State generated output and keep maximum.
Electric supply installation the most according to claim 2, it is characterised in that described control portion is by described
When one charging current is set as the charging current of described charging part, if described generated output calculating part
The current generated output obtained less than last generated output, then set described second charging current as
The charging current of described charging part, makes described generated output keep maximum.
Electric supply installation the most according to claim 2, it is characterised in that described control portion is by described
When two charging current values are set as the charging current of described charging part, described generated output calculating part is asked
The current generated output gone out less than last generated output, then sets described first charging current as institute
State the charging current of charging part, make described generated output keep maximum.
Electric supply installation the most as claimed in any of claims 1 to 6, it is characterised in that described variation
Load is fixing heater.
8. an image processing system, it is characterised in that possess in claim 1 to 7 described in any one
Electric supply installation.
9., for the method for supplying power to of electric supply installation, this electric supply installation possesses following portion:
Light Power Generation Section, is used for converting light energy into electric energy；
Fluctuating load, when consuming the power supply of described smooth Power Generation Section, power consumption changes；
Charging part, with default charging current, charges to Reserve Power Division with the power supply of described smooth Power Generation Section；
Current/voltage test section, for detecting generation current and the generating voltage of described smooth Power Generation Section；
And,
Load current detector, supplies the load of described fluctuating load for detecting described smooth Power Generation Section
Electric current,
Described method of supplying power to is characterised by, possesses following steps:
Generated output calculation procedure, according to described generation current and described generating voltage, calculates described
The generated output of light Power Generation Section；
First charging current calculation procedure, by last charging current, deducts the inspection of described load current
The survey portion last time detects between last load current and this present load current detected
The value that obtains of difference, with the Weak current sum of regulation, obtain the first charging current；And,
Rate-determining steps, sets described first charging current charging current as described charging part, makes institute
State generated output and keep maximum.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-056041 | 2015-03-19 | ||
| JP2015056041 | 2015-03-19 | ||
| JP2016-049433 | 2016-03-14 | ||
| JP2016049433A JP6711041B2 (en) | 2015-03-19 | 2016-03-14 | Power supply apparatus, image forming apparatus, power supply method, and program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105990895A true CN105990895A (en) | 2016-10-05 |
| CN105990895B CN105990895B (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610159280.XA Expired - Fee Related CN105990895B (en) | 2015-03-19 | 2016-03-18 | Power supply unit, image forming apparatus and method of supplying power to |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266225A (en) * | 2019-06-28 | 2019-09-20 | 武汉新能源研究院有限公司 | Control the method and system of the generation current of power generator |
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| US5569998A (en) * | 1994-08-16 | 1996-10-29 | Cowan; Thomas | Solar powered pumping system |
| CN102196133A (en) * | 2010-03-11 | 2011-09-21 | 株式会社理光 | Electronic device, display, image processing apparatus and electronic calculating apparatus |
| US20120109389A1 (en) * | 2010-10-27 | 2012-05-03 | Redwood Systems, Inc. | Distributed power point control |
| CN103873720A (en) * | 2012-12-07 | 2014-06-18 | 佳能株式会社 | Job processing apparatus and method of controlling the same |
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| US5569998A (en) * | 1994-08-16 | 1996-10-29 | Cowan; Thomas | Solar powered pumping system |
| CN102196133A (en) * | 2010-03-11 | 2011-09-21 | 株式会社理光 | Electronic device, display, image processing apparatus and electronic calculating apparatus |
| US20120109389A1 (en) * | 2010-10-27 | 2012-05-03 | Redwood Systems, Inc. | Distributed power point control |
| CN103873720A (en) * | 2012-12-07 | 2014-06-18 | 佳能株式会社 | Job processing apparatus and method of controlling the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110266225A (en) * | 2019-06-28 | 2019-09-20 | 武汉新能源研究院有限公司 | Control the method and system of the generation current of power generator |
| CN110266225B (en) * | 2019-06-28 | 2024-01-09 | 武汉新能源研究院有限公司 | Method and system for controlling power generation current of power generation device |
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| CN105990895B (en) | 2018-11-16 |
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