CN108023528B - The dynamic energy-saving speed regulating method and system of permasyn morot - Google Patents
The dynamic energy-saving speed regulating method and system of permasyn morot Download PDFInfo
- Publication number
- CN108023528B CN108023528B CN201610972573.XA CN201610972573A CN108023528B CN 108023528 B CN108023528 B CN 108023528B CN 201610972573 A CN201610972573 A CN 201610972573A CN 108023528 B CN108023528 B CN 108023528B
- Authority
- CN
- China
- Prior art keywords
- frequency
- output
- voltage
- module
- desired output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
- H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
- H02P27/12—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation pulsing by guiding the flux vector, current vector or voltage vector on a circle or a closed curve, e.g. for direct torque control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The dynamic energy-saving speed regulating method and system of permasyn morot, comprising: obtain the real-time desired output frequency of permanent magnet synchronous motor；Compare real-time desired output frequency and default reference frequency output；If desired output frequency is in active power factor adjuster reference frequency output, dynamic regulation output voltage；It is desired output voltage by the maximum output voltage setting of active power factor adjuster if desired output frequency is higher than the reference frequency output of active power factor adjuster；If desired output frequency is lower than the reference frequency output of active power factor adjuster, the smallest output voltage setting by active power correction is desired output voltage；The inflection point information of the voltage-frequency characteristic of permanent magnet synchronous motor is updated according to desired output voltage.
Description
Technical field
The present invention relates to one kind, more particularly to the dynamic energy-saving speed regulating method and system of a kind of permasyn morot.
Background technique
Existing permanent magnet synchronous motor is the most important component of air-conditioning, and traditional constant speed permanent magnet synchronous motor electric energy loss,
Indoor temperature fluctuation and noise are bigger, thus permanent magnet synchronous motor gradually replaced it is traditional determine frequency constant speed permanent magnet synchronous motor, it makes
Compressor on-off frequency is reduced, comfort level increases, and room temperature regulating effect and effects of energy saving and emission reduction, which have, largely to be promoted.
Paper " SVPWM (Space Vector Pulse Width Modulation, space vector pulsewidth tune based on fuzzy control
System) application of the technology in permanent magnet synchronous motor frequency control " it points out, advanced space vector modulation (SVPWM) mode can
According to room temperature, the refrigerating capacity of permanent magnet synchronous motor is adjusted continuously, dynamically, in realtime, remains at reasonable operating shape
Under state.But the frequency control that this article is mentioned only carries out on a voltage-frequency characteristic curve, and existing research channel syndrome
Bright, at the inflection point of permanent torque state and invariable power state, the efficiency of permanent magnet synchronous motor is highest, therefore the paper is mentioned
SVPWM permanent magnet synchronous motor variable-frequency control technique, still have much room for improvement.After searching and discovering the prior art, at present forever
It is less using the research of VVVF speed regulation method in magnetic-synchro motor, the dynamic for the permanent magnet synchronous motor that the invention patent proposes
Energy saving adjusting method compensates for this blank, takes full advantage of the output voltage regulating power of active power factor adjuster, makes
Obtaining permanent magnet synchronous motor can be realized the efficiency operation in wide scope.
To sum up, the speed regulating method of the permanent magnet synchronous motor disclosed in the prior art does not have the technical characteristic of dynamic regulation,
Can not effectively automatic adjusument permanent magnet synchronous motor power and the speed of service, do not utilize the defeated of active power factor adjuster
Voltage regulation capability out, the permanent magnet synchronous motor in traditional technology can be realized the working efficiency in wide scope and need further to be mentioned
It is high.
Summary of the invention
The shortcomings that in view of the above prior art, not solving in the prior art can not effectively automatic adjusument permanent magnet synchronous electric
The technical issues of power and the speed of service of machine, the purpose of the present invention is to provide a kind of dynamic energy-savings of permasyn morot
Speed regulating method, comprising: S1, the real-time desired output frequency for obtaining permanent magnet synchronous motor；S2, the real-time desired output frequency of comparison with
Default reference frequency output；If S3, desired output frequency, in active power factor adjuster reference frequency output, dynamic is adjusted
Save output voltage；If S4, desired output frequency are higher than the reference frequency output of active power factor adjuster, by active power
The maximum output voltage setting of factor adjuster is desired output voltage；If S5, desired output frequency are lower than active power factor
The smallest output voltage setting of active power correction is then desired output voltage by the reference frequency output of adjuster；S6, root
The inflection point information of the voltage-frequency characteristic of permanent magnet synchronous motor is updated according to desired output voltage.
In one embodiment of the present invention, the endpoints thereof of active power factor adjuster reference frequency output is that highest is defeated
Fundamental frequency and minimum output fundamental frequency out；S2, the real-time desired output frequency of comparison and active power factor adjuster reference frequency output,
Include: S21, judge whether desired output frequency is greater than highest output fundamental frequency；S22, if so, obtain judging result for it is expected it is defeated
Frequency is higher than the reference frequency output of active power factor adjuster out；S23, if it is not, then judging whether desired output frequency big
In minimum output fundamental frequency；If S24, the desired output frequency are greater than the minimum output fundamental frequency, it is concluded that judging result schedules to last
Hope output frequency in active power factor adjuster reference frequency output；If S25, the desired output frequency are no more than described
Minimum output fundamental frequency is, it is concluded that judging result is the output frequency model that desired output frequency is lower than active power factor adjuster
It encloses.
In one embodiment of the present invention, if S3, the desired output frequency are in the active power factor tune
It saves in device reference frequency output, then dynamic regulation output voltage, comprising: S31, execution inverter output voltage and frequency relation are looked into
List procedure, the output voltage for obtaining power factor correction circuit are tabled look-up value；S32, value of being tabled look-up according to the output voltage, working voltage phase
Prestige value udc calculation procedure obtains APFC (Active Power Factor Correction, active power correction parameter) output
Voltage desired value.
In one embodiment of the present invention, S6, the new voltage-that permanent magnet synchronous motor is determined according to desired output voltage
The inflection point information of frequency characteristic, comprising: S61, vector is called to adjust the speed program, obtain desired output component of voltage；S62, it calls directly
Voltage detecting program is flowed, the instantaneous value of DC voltage is obtained；S63, according to the wink of desired output component of voltage and DC voltage
Duration obtains inflection point information.
In one embodiment of the present invention, further includes: S71, calculate acquisition modulation degree in real time according to inflection point information；S72,
Operated inverter SVPWM modulation algorithm executes program, according to desired output voltage, the instantaneous value of DC voltage and modulation degree, into
Row Frequency-variable Modulation.
In one embodiment of the present invention, a kind of dynamic energy-saving speed-regulating system of permasyn morot, feature exists
In for improving working efficiency of the permanent magnet synchronous motor in permanent torque partial routine and invariable power partial routine, comprising: expectation
Frequency acquisition module, frequency comparison module, the first adjustment module, the second adjustment module, third adjustment module, inflection point acquisition of information
Module；Expected frequency obtains module, for obtaining the real-time desired output frequency of permanent magnet synchronous motor；Frequency comparison module is used
In the more real-time desired output frequency of judgement and active power factor adjuster reference frequency output；First adjustment module, is used for
When desired output frequency is in active power factor adjuster reference frequency output, dynamic regulation output voltage；Second is adjusted
Module, when for being higher than the reference frequency output of active power factor adjuster in desired output frequency, by active power factor
The maximum output voltage setting of adjuster is desired output voltage；Third adjustment module has for being lower than in desired output frequency
It is desired output by output voltage setting the smallest in default correction factor when the reference frequency output of active power factor adjuster
Voltage；Inflection point data obtaining module, for determining the new voltage-frequency characteristic of permanent magnet synchronous motor according to desired output voltage
Inflection point information.
In one embodiment of the present invention, frequency comparison module, comprising: upper limit judgment module, the first judging result are defeated
Module, lower limit judgment module, the second judging result output module and third judging result output module out；Upper limit judgment module,
For judging whether desired output frequency is greater than highest output fundamental frequency；First judging result output module, in desired output
When frequency is greater than highest output fundamental frequency, show that judging result is the output that desired output frequency is higher than active power factor adjuster
Frequency range；Lower limit judgment module, for judging that desired output frequency is when desired output frequency is less than highest output fundamental frequency
It is no to be greater than minimum output fundamental frequency；Second judging result output module, it is described minimum defeated for being greater than in the desired output frequency
When fundamental frequency and the lower limit judgment module judge that the desired output frequency is less than highest output fundamental frequency out, judgement knot is obtained
Fruit is desired output frequency in active power factor adjuster reference frequency output；Third judging result output module, is used for
When desired output frequency is less than minimum output fundamental frequency, show that judging result is desired output frequency lower than active power factor tune
Save the reference frequency output of device.
In one embodiment of the present invention, the first adjustment module, comprising: voltage table look-up module, voltage desired value module；
Voltage table look-up module obtains the output of power factor correction circuit for executing inverter output voltage and frequency relation look-up routine
Voltage is tabled look-up value；Voltage desired value module, for being tabled look-up value according to output voltage, working voltage desired value udc calculation procedure is obtained
To the output voltage desired value of power factor correction circuit.
In one embodiment of the present invention, inflection point data obtaining module, comprising: vector speed adjusting module, DC voltage inspection
Survey module,；Vector speed adjusting module obtains desired output component of voltage for calling vector to adjust the speed program；DC voltage detects mould
Block obtains the instantaneous value of DC voltage for calling DC voltage to detect program；Inflection point obtains module, for according to expectation
The instantaneous value of output voltage component and DC voltage obtains inflection point information.
In one embodiment of the present invention, make-and-break time obtains module, and it includes: modulation that the make-and-break time, which obtains module,
Spend computing module and modulation algorithm execution module；Modulation degree computing module is modulated for being calculated in real time according to inflection point information
Degree；Modulation algorithm execution module, for operated inverter SVPWM modulation algorithm execute program, according to the desired output voltage,
The instantaneous value of the DC voltage and the modulation degree carry out Frequency-variable Modulation.
As described above, the dynamic energy-saving speed regulating method and system of a kind of permasyn morot provided by the invention, have
Below the utility model has the advantages that
The present invention discloses a kind of dynamic energy-saving speed regulating method of permasyn morot, and this method is with permanent magnet synchronous electric electromechanics
Based on pressure-frequency characteristic, desired output frequency is calculated in real time, when desired output voltage is in active power factor adjuster
When in (APFC) output voltage range, dynamic regulation output voltage udc, permanent magnet synchronous motor is made to always work in permanent torque state
At the inflection point of invariable power state, guarantee the efficient energy conversion of permanent magnet synchronous motor.Speed regulating method of the invention can fill
Divide the output voltage using APFC, permanent magnet synchronous motor can be realized the efficiency operation in wide frequency ranges, solve permanent magnetism
Low efficiency problem of the synchronous motor in permanent torque partial routine and invariable power partial routine；This method clear logic, control letter
The application that list is it in Permanent-magnet Synchronous-motor Speed Servo System provides guarantee, and solving in the prior art can not effectively certainly
Adapt to adjust permanent magnet synchronous motor power and the speed of service the technical issues of.
Detailed description of the invention
Fig. 1 is shown as a kind of dynamic energy-saving speed regulating method step schematic diagram of permasyn morot of the invention.
Fig. 2 is shown as desired output frequency of the invention and default reference frequency output comparison step schematic diagram.
Fig. 3 is shown as dynamic regulation output voltage step schematic diagram of the invention.
Fig. 4 is shown as inflection point information update step schematic diagram of the invention.
Fig. 5 is shown as Frequency-variable Modulation step schematic diagram of the invention.
Fig. 6 is shown as a kind of dynamic energy-saving speed-regulating system module diagram of permasyn morot of the invention.
Fig. 7 is shown as frequency comparison module schematic diagram of the invention.
Fig. 8 is shown as the first adjustment module schematic diagram of the invention.
Fig. 9 is shown as inflection point data obtaining module schematic diagram of the invention.
Figure 10 is shown as logical section time-obtaining module schematic diagram of the invention.
Component label instructions
A kind of 1 dynamic energy-saving speed-regulating system of permasyn morot
11 expected frequencies obtain module
12 frequency comparison modules
Adjustment module in 13 frequency ranges
14 are higher than range adjustment module
15 are lower than range adjustment module
16 inflection point data obtaining modules
17 make-and-break times obtain module
121 upper limit judgment modules
122 are greater than upper limit module
123 lower limit judgment modules
124 range internal modules
125 are less than lower limit module
131 voltage table look-up modules
132 voltage desired value modules
161 vector speed adjusting modules
162 DC voltage detection modules
163 inflection points obtain module
171 modulation degree computing modules
172 modulation algorithm execution modules
Step numbers explanation
Fig. 1 S1~S6
Fig. 2 S21~S25
Fig. 3 S31~S32
Fig. 4 S61~S63
Fig. 5 S71~S72
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Figure 10, it should however be clear that this specification structure depicted in this specification institute accompanying drawings, only to cooperate specification
Revealed content is not intended to limit the invention enforceable restriction item so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model
In the range of Rong Suoneng is covered.Meanwhile in this specification it is cited as " on ", " under ", " left side ", " right side ", " centre " and " one "
Deng term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness
Or adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Referring to Fig. 1, being shown as a kind of dynamic energy-saving speed regulating method step signal of permasyn morot of the invention
Figure, as shown in Figure 1, the purpose of the present invention is to provide a kind of dynamic energy-saving speed regulating methods of permasyn morot, comprising:
S1, the real-time desired output frequency for obtaining permanent magnet synchronous motor, it is preferred that after program starts execution, into desired output frequency
Calculation procedure obtains desired output frequency fo；S2, the real-time desired output frequency of comparison and default reference frequency output, it is preferred that
The output end of desired output frequency calculation procedure is connected with desired output upper frequency limit determining program；If S3, desired output frequency
In active power factor adjuster reference frequency output, then dynamic regulation output voltage；If S4, desired output frequency, which are higher than, to be had
The maximum output voltage setting of active power factor adjuster is then expectation by the reference frequency output of active power factor adjuster
Output voltage, it is preferred that if it is desire to output frequency foFundamental frequency f is exported greater than highestbmax, then enter APFC (Active Power
Factor Correction, active power correction parameter) maximum output voltage be arranged program, setting APFC output voltage be
Highest Udcmax；If S5, desired output frequency are lower than the reference frequency output of active power factor adjuster, by active power school
Positive the smallest output voltage setting is desired output voltage, it is preferred that enters APFC minimum output voltage and program, setting is arranged
APFC output voltage is minimum Udcmin；S6, APFC output voltage desired value udcThe output end and vector for running program adjust the speed journey
Sequence is connected, the available desired output component of voltage V of the execution of the programαWith Vβ, permanent-magnet synchronous is updated according to desired output voltage
The inflection point information of the voltage-frequency characteristic of motor.
Referring to Fig. 2, it is shown as desired output frequency of the invention and default reference frequency output comparison step schematic diagram,
As shown in Fig. 2, the endpoints thereof of active power factor adjuster reference frequency output is that highest exports fundamental frequency and minimum output fundamental frequency；
S2, the real-time desired output frequency of comparison and active power factor adjuster reference frequency output, comprising: S21, judge desired output
Whether frequency is greater than highest output fundamental frequency；S22, if so, obtain judging result be it is expected output frequency higher than active power because
The reference frequency output of number adjuster, it is preferred that if it is desire to output frequency foFundamental frequency f is exported greater than highestbmax, then enter
Program is arranged in APFC maximum output voltage, and setting APFC output voltage is highest Udcmax；S23, if it is not, then judge desired output frequency
Whether rate is greater than minimum output fundamental frequency, it is preferred that desired output frequency foFundamental frequency f is exported greater than highestbmaxBe judged as NO, into
Enter desired output lower-frequency limit determining program, if it is desired to output frequency foLess than minimum output fundamental frequency fbmin, then enter APFC most
Program is arranged in low output voltage, and setting APFC output voltage is minimum Udcmin；If S24, the desired output frequency are greater than institute
Minimum output fundamental frequency is stated, it is concluded that judging result is desired output frequency in active power factor adjuster reference frequency output
It is interior, it is preferred that desired output frequency foLess than minimum output fundamental frequency fbmaxBe judged as NO, execute inverter output voltage and frequency
Rate relationship look-up routine obtains APFC output voltage and tables look-up value udc；If S25, the desired output frequency are no more than described minimum
Fundamental frequency is exported, it is concluded that reference frequency output of the judging result for desired output frequency lower than active power factor adjuster, excellent
Choosing, if it is desired to output frequency foLess than minimum output fundamental frequency fbmin, then enter APFC minimum output voltage and program is set, if
Setting APFC output voltage is minimum Udcmin。
Referring to Fig. 3, be shown as dynamic regulation output voltage step schematic diagram of the invention, as shown in figure 3, S3, described
If the desired output frequency is in the active power factor adjuster reference frequency output, dynamic regulation output voltage,
It include: that S31, execution inverter output voltage and frequency relation look-up routine, the output voltage for obtaining power factor correction circuit are tabled look-up
Value, it is preferred that the output end and APFC output voltage desired value u of inverter output voltage and frequency relation look-up routinedcIt calculates
Program is connected, and obtains APFC output voltage desired value udc；S32, value of being tabled look-up according to the output voltage, working voltage desired value
Udc calculation procedure obtains APFC output voltage desired value, APFC output voltage desired value udcThe output end and APFC of calculation procedure
Output voltage desired value udcIt runs program to be connected, so that the output voltage stabilization of APFC is in desired value.
Referring to Fig. 4, be shown as inflection point information update step schematic diagram of the invention, as shown in figure 4, S6, according to expectation
Output voltage determines the inflection point information of the new voltage-frequency characteristic of permanent magnet synchronous motor, comprising: S61, vector is called to adjust the speed journey
Sequence obtains desired output component of voltage, it is preferred that APFC output voltage desired value udcThe output end and vector for running program adjust the speed
Program is connected, the available desired output component of voltage V of the execution of the programαWith Vβ；S62, DC voltage is called to detect program,
Preferably, the output end of vector speed regulation program is connected with DC voltage detection program, obtains the instantaneous value of DC voltage；S63,
Inflection point information is obtained according to the instantaneous value of desired output component of voltage and DC voltage, it is preferred that inverter SVPWM (Space
Vector Pulse Width Modulation, space vector pulse width modulation) modulation degree m calculation procedure output end with it is inverse
Become device SVPWM modulation algorithm execution program to be connected, according to the desired output voltage, DC voltage instantaneous value and modulation being calculated
M is spent, Frequency-variable Modulation is carried out, a cycle period terminates, and return starts, and carries out the calculating of next cycle.
Referring to Fig. 5, Frequency-variable Modulation step schematic diagram, as shown in Figure 5, further includes: S71, counted in real time according to inflection point information
It calculates and obtains modulation degree, preferential, DC voltage detects the modulation degree m calculation procedure phase of the output end and inverter SVPWM of program
Even, it is calculated in real time according to the expectation voltage of the instantaneous value of DC voltage and permanent magnet synchronous motor and obtains modulation degree；S72, operation are inverse
Become device SVPWM modulation algorithm and execute program, according to desired output voltage, the instantaneous value of DC voltage and modulation degree, carries out frequency conversion
Modulation.
Referring to Fig. 6, a kind of dynamic energy-saving speed-regulating system module diagram of permasyn morot, as shown in fig. 6, one
The dynamic energy-saving regulating system 1 of kind permanent magnet synchronous motor, which is characterized in that for improving permanent magnet synchronous motor in permanent torque part
Working efficiency in process and invariable power partial routine, comprising: expected frequency obtains module 11, frequency comparison module 12, frequency
Adjustment module 13 in range is higher than range adjustment module 14, is lower than range adjustment module 15, inflection point data obtaining module 16；Phase
Frequency acquisition module 11 is hoped, for obtaining the real-time desired output frequency of permanent magnet synchronous motor, after program starts execution, into the phase
It hopes output frequency calculation procedure, obtains desired output frequency fo；Frequency comparison module 12 obtains module 11 with expected frequency and connect,
For judging more real-time desired output frequency and active power factor adjuster reference frequency output, desired output frequency is calculated
The output end of program is connected with desired output upper frequency limit determining program；First adjustment module 13 connects with frequency comparison module 12
It connects, is used for the dynamic regulation output voltage when desired output frequency is in active power factor adjuster reference frequency output；The
Two adjustment modules 14 are connect with frequency comparison module 12, for being higher than the defeated of active power factor adjuster in desired output frequency
It is desired output voltage by the maximum output voltage setting of active power factor adjuster, if it is desired to defeated out when frequency range
Frequency fo is greater than highest output fundamental frequency fbmax out, then enters APFC maximum output voltage and program is arranged, APFC output voltage is arranged
For highest Udcmax；Third adjustment module 15 is connect with frequency comparison module 12, for being lower than active function in desired output frequency
It is desired output electricity by output voltage setting the smallest in default correction factor when the reference frequency output of rate factor adjuster
Program is arranged into APFC minimum output voltage in pressure, and setting APFC output voltage is minimum Udcmin；Inflection point acquisition of information mould
Block 16 is connect with the first adjustment module 13, the second adjustment module 14 and third adjustment module 15 simultaneously, for according to desired output
Voltage determines the inflection point information of the new voltage-frequency characteristic of permanent magnet synchronous motor, and APFC output voltage desired value udc runs journey
The output end of sequence is connected with vector speed regulation program, the available desired output component of voltage Vd of the execution of the program and V β, according to
Desired output voltage updates the inflection point information of the voltage-frequency characteristic of permanent magnet synchronous motor.
Referring to Fig. 7, it is shown as frequency comparison module schematic diagram of the invention, as shown in fig. 7, frequency comparison module 12,
It include: upper limit judgment module 121, the first judging result output module 122, lower limit judgment module 123, the output of the second judging result
Module 124 and third judging result output module 125；Upper limit judgment module 121, for judging whether desired output frequency is greater than
Highest exports fundamental frequency；First judging result output module 122 is connect with upper limit judgment module 121, in desired output frequency
When exporting fundamental frequency greater than highest, show that judging result is the output frequency that desired output frequency is higher than active power factor adjuster
Range, if it is desired to output frequency fo is greater than highest and exports fundamental frequency fbmax, then enters APFC maximum output voltage and program is arranged,
Setting APFC output voltage is highest Udcmax；Lower limit judgment module 123 is connect with the first judging result output module 122, is used
In when desired output frequency is less than highest output fundamental frequency, judge whether desired output frequency is greater than minimum output fundamental frequency, it is expected that
Output frequency fb is greater than being judged as NO for highest output fundamental frequency fbmax, into desired output lower-frequency limit determining program, such as fruiting period
It hopes output frequency fo be less than minimum output fundamental frequency fbmin, then enters APFC minimum output voltage and program is set, setting APFC is exported
Voltage is minimum Udcmin；Second judging result output module 124 is connect with lower limit judgment module 123, in the phase
Hope that output frequency is greater than the minimum output fundamental frequency and the lower limit judgment module judges the desired output frequency less than described
When highest exports fundamental frequency, show that judging result is desired output frequency in active power factor adjuster reference frequency output,
Desired output frequency fb is less than being judged as NO for minimum output fundamental frequency fbmax, executes inverter output voltage and looks into frequency relation
List procedure obtains APFC output voltage and tables look-up value udc；Third judging result output module 125 and lower limit judgment module 123 connect
It connects, for when desired output frequency is less than minimum output fundamental frequency, showing that judging result is desired output frequency lower than active function
The reference frequency output of rate factor adjuster, if it is desired to which output frequency fo is less than minimum output fundamental frequency fbmin, then enters APFC
Program is arranged in minimum output voltage, and setting APFC output voltage is minimum Udcmin.
Referring to Fig. 8, it is shown as the first adjustment module schematic diagram of the invention, as shown in figure 8, the first adjustment module 13,
It include: voltage table look-up module 131, voltage desired value module 132；Voltage table look-up module 131, for executing inverter output voltage
With frequency relation look-up routine, the output voltage for obtaining power factor correction circuit is tabled look-up value, inverter output voltage and frequency relation
The output end of look-up routine is connected with APFC output voltage desired value udc calculation procedure, obtains APFC output voltage desired value
udc；Voltage desired value module 132 is connect with voltage table look-up module 131, for being tabled look-up value according to the output voltage, operation electricity
Press desired value udc calculation procedure, obtain APFC output voltage desired value, APFC output voltage desired value udc calculation procedure it is defeated
Outlet is connected with APFC output voltage desired value udc operation program, so that the output voltage stabilization of APFC is in desired value.So that
Output voltage stabilization is at 7 points
Referring to Fig. 9, inflection point data obtaining module schematic diagram of the invention is shown as, as shown in figure 9, inflection point acquisition of information
Module 16, comprising: vector speed adjusting module 161, DC voltage detection module 162, inflection point obtain module 163；Vector speed adjusting module
161, for calling vector to adjust the speed program, desired output component of voltage is obtained, APFC output voltage desired value udc runs program
Output end is connected with vector speed regulation program, the available desired output component of voltage V α of the execution of the program and V β；DC voltage
Detection module 162 obtains the instantaneous value of DC voltage, vector adjusts the speed the defeated of program for calling DC voltage to detect program
Outlet is connected with DC voltage detection program, obtains the instantaneous value of DC voltage；Inflection point obtain module 163 simultaneously with vector tune
Fast module 161 and DC voltage detection module 162 connect, for the instantaneous value according to desired output component of voltage and DC voltage
Inflection point information is obtained, the output end and inverter SVPWM modulation algorithm of the modulation degree m calculation procedure of inverter SVPWM execute journey
Sequence is connected, and according to the desired output voltage, DC voltage instantaneous value and modulation degree m being calculated, carries out Frequency-variable Modulation, one is followed
Ring end cycle, return start, and carry out the calculating of next cycle.
Referring to Fig. 10, being shown as make-and-break time of the invention obtains module diagram, as shown in Figure 10, make-and-break time is obtained
Modulus block 17, it includes: modulation degree computing module 171 and modulation algorithm execution module 172 that the make-and-break time, which obtains module 17,；It adjusts
System computing module 171, for according to inflection point information in real time calculates obtain modulation degree, DC voltage detect program output end and
The modulation degree m calculation procedure of inverter SVPWM is connected, according to the expectation voltage of the instantaneous value of DC voltage and permanent magnet synchronous motor
It calculates in real time and obtains modulation degree；Modulation algorithm execution module 172 is connect with modulation degree computing module 171, is used for operated inverter
SVPWM modulation algorithm executes program, according to the desired output voltage, the instantaneous value of the DC voltage and the modulation degree,
Carry out Frequency-variable Modulation.
To sum up, a kind of present invention provided by the invention disclose a kind of permasyn morot dynamic energy-saving speed regulating method and
System, this method are calculated desired output frequency in real time, are worked as desired output based on permanent magnet synchronous motor voltage-frequency characteristic
When voltage is in active power factor adjuster (APFC) output voltage range, dynamic regulation output voltage udc, make permanent-magnet synchronous
Motor always works at the inflection point of permanent torque state and invariable power state, guarantees that the efficient energy of permanent magnet synchronous motor turns
It changes.Speed regulating method of the invention can make full use of the output voltage of APFC, and permanent magnet synchronous motor can be realized wide frequency ranges
Interior efficiency operation solves poor efficiency of the permanent magnet synchronous motor in permanent torque partial routine and invariable power partial routine and asks
Topic；This method clear logic, control is simple, and the application for be it in Permanent-magnet Synchronous-motor Speed Servo System provides guarantee, solution
In the prior art can not effectively the power of automatic adjusument permanent magnet synchronous motor and the speed of service the technical issues of, have
Very high commercial value and practicability.
Claims (10)
1. a kind of dynamic energy-saving speed regulating method of permasyn morot, which is characterized in that the described method includes:
Obtain the real-time desired output frequency of permasyn morot；
Compare the real-time desired output frequency and default reference frequency output；
If the desired output frequency is in active power factor adjuster reference frequency output, dynamic regulation output voltage；
If the desired output frequency is higher than the default reference frequency output, there will be the active power factor adjuster maximum
Output voltage setting be desired output voltage；
It is if the desired output frequency is lower than the default reference frequency output, the active power factor adjuster is minimum
Output voltage setting be desired output voltage；
The inflection point information of the voltage-frequency characteristic of permasyn morot is updated according to the desired output voltage.
2. according to the method described in claim 1, it is characterized by: the active power factor adjuster reference frequency output
Endpoints thereof is that highest exports fundamental frequency and minimum output fundamental frequency；The real-time desired output frequency and default output frequency
Range, comprising:
Judge whether the desired output frequency is greater than the highest output fundamental frequency；
If so, showing that judging result is the output frequency that the desired output frequency is higher than the active power factor adjuster
Range；
If it is not, then judging whether the desired output frequency is greater than the minimum output fundamental frequency；
If the desired output frequency is greater than the minimum output fundamental frequency, it is concluded that judging result is that the desired output frequency exists
In the active power factor adjuster reference frequency output；
If the desired output frequency is not more than the minimum output fundamental frequency, it is concluded that judging result is the desired output frequency
Lower than the reference frequency output of the active power factor adjuster.
3. if the method according to claim 1, wherein the desired output frequency is in the active power
In factor adjuster reference frequency output, then dynamic regulation output voltage, comprising:
Inverter output voltage and frequency relation look-up routine are executed, the output voltage of the active power factor adjuster is obtained
It tables look-up value；
It is tabled look-up value according to the output voltage, working voltage desired value udc calculation procedure obtains the active power factor and adjusts
The output voltage desired value of device.
4. the method according to claim 1, wherein described update permanent-magnet synchronous according to the desired output voltage
The inflection point information of the voltage-frequency characteristic of motor, comprising:
It calls vector to adjust the speed program, obtains desired output component of voltage；
It calls DC voltage to detect program, obtains the instantaneous value of DC voltage；
The inflection point information is obtained according to the instantaneous value of the desired output component of voltage and the DC voltage.
5. the method according to claim 1, wherein including:
It is calculated in real time according to the inflection point information and obtains modulation degree；
Operated inverter SVPWM modulation algorithm executes program, according to the desired output voltage, the instantaneous value of DC voltage and institute
Modulation degree is stated, Frequency-variable Modulation is carried out.
6. a kind of dynamic energy-saving speed-regulating system of permasyn morot, which is characterized in that for improving permasyn morot
Working efficiency in permanent torque partial routine and invariable power partial routine, comprising: expected frequency obtains module, frequency compares mould
Block, the first adjustment module, the second adjustment module, third adjustment module, inflection point data obtaining module, make-and-break time obtain module；
Expected frequency obtains module, for obtaining the real-time desired output frequency of permasyn morot；
Frequency comparison module, for judging the real-time desired output frequency and active power factor adjuster output frequency
Range；
First adjustment module is used in the desired output frequency in the active power factor adjuster reference frequency output
When, dynamic regulation output voltage；
Second adjustment module, for being higher than the output frequency model of the active power factor adjuster in the desired output frequency
It is desired output voltage by the maximum output voltage setting of active power factor adjuster when enclosing；
Third adjustment module, for being lower than the output frequency model of the active power factor adjuster in the desired output frequency
It is desired output voltage by the smallest output voltage setting of active power factor adjuster when enclosing；
Inflection point data obtaining module, for determining new voltage-frequency of permasyn morot according to the desired output voltage
The inflection point information of rate characteristic.
7. system according to claim 6, which is characterized in that the frequency comparison module, comprising: upper limit judgment module,
First judging result output module, lower limit judgment module, the second judging result output module and third judging result output module；
Upper limit judgment module, for judging whether the desired output frequency is greater than highest output fundamental frequency；
First judging result output module, for obtaining and sentencing when the desired output frequency is greater than highest output fundamental frequency
Disconnected result is the reference frequency output that the desired output frequency is higher than the active power factor adjuster；
Lower limit judgment module, for judging whether the desired output frequency is greater than minimum output fundamental frequency；
Second judging result output module, for being greater than the minimum output fundamental frequency in the desired output frequency and being less than described
When highest exports fundamental frequency, show that judging result is the desired output frequency in the active power factor adjuster output frequency
In range；
Third judging result output module, for obtaining and sentencing when the desired output frequency is less than the minimum output fundamental frequency
Disconnected result is the reference frequency output that the desired output frequency is lower than the active power factor adjuster.
8. system according to claim 6, which is characterized in that first adjustment module, comprising: voltage table look-up module,
Voltage desired value module；
Voltage table look-up module, for executing inverter output voltage and frequency relation look-up routine, obtain the active power because
The output voltage of number adjusters is tabled look-up value；
Voltage desired value module, for being tabled look-up value according to the output voltage, working voltage desired value udc calculation procedure is obtained
The output voltage desired value of the active power factor adjuster.
9. system according to claim 6, which is characterized in that the inflection point data obtaining module, comprising: vector adjusts the speed mould
Block, DC voltage detection module, inflection point obtain module；
Vector speed adjusting module obtains desired output component of voltage；
DC voltage detection module obtains the instantaneous value of DC voltage for calling DC voltage to detect program；
Inflection point obtains module, for obtaining described turn according to the instantaneous value of the desired output component of voltage and the DC voltage
Point information.
10. system according to claim 6, which is characterized in that it includes: that modulation degree calculates that the make-and-break time, which obtains module,
Module and modulation algorithm execution module；
Modulation degree computing module calculates in real time according to inflection point information for running modulation degree calculation procedure and obtains modulation degree；
Modulation algorithm execution module executes program for operated inverter SVPWM modulation algorithm, according to the desired output electricity
Pressure, the instantaneous value of DC voltage and the modulation degree carry out Frequency-variable Modulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972573.XA CN108023528B (en) | 2016-11-04 | 2016-11-04 | The dynamic energy-saving speed regulating method and system of permasyn morot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972573.XA CN108023528B (en) | 2016-11-04 | 2016-11-04 | The dynamic energy-saving speed regulating method and system of permasyn morot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108023528A CN108023528A (en) | 2018-05-11 |
| CN108023528B true CN108023528B (en) | 2019-11-12 |
Family
ID=62084770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972573.XA Active CN108023528B (en) | 2016-11-04 | 2016-11-04 | The dynamic energy-saving speed regulating method and system of permasyn morot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023528B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05227795A (en) * | 1992-02-10 | 1993-09-03 | Alex Denshi Kogyo Kk | Controller and control method for induction motor |
| CN101378245A (en) * | 2007-08-28 | 2009-03-04 | 张国辉 | Control method and device for induction machine |
| CN201416980Y (en) * | 2009-03-16 | 2010-03-03 | 宁波德斯科电子科技有限公司 | Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same |
| US8508166B2 (en) * | 2009-08-10 | 2013-08-13 | Emerson Climate Technologies, Inc. | Power factor correction with variable bus voltage |
| CN104079230B (en) * | 2014-07-07 | 2016-09-28 | 神王伟国 | The method of asynchronous motor efficiency-optimization control, device, system and electric automobile |
-
2016
- 2016-11-04 CN CN201610972573.XA patent/CN108023528B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108023528A (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8339093B2 (en) | System and method of dynamic regulation of real power to a load | |
| CN112524854B (en) | Control method of compressor in variable frequency air conditioner and variable frequency air conditioner | |
| AU2010259066A1 (en) | System and method of dynamic regulation of real power to a load | |
| CN106452127B (en) | Voltage regulation method and device and dual IPM module driver | |
| CN110149067B (en) | PI partition control method of inverter system | |
| CN102013824A (en) | Controller for inhibiting neutral point potential drift in three-level inverter | |
| CN115096041A (en) | Method for controlling starting operation of compressor of inverter refrigerator | |
| CN111397077A (en) | Temperature control method and device, storage medium and air conditioner | |
| CN105119297A (en) | A Method for Adaptive Reactive Compensation of Photovoltaic Inverters | |
| CN108023528B (en) | The dynamic energy-saving speed regulating method and system of permasyn morot | |
| CN106894854B (en) | Table coagulates formula indirect air cooling generating set cold end system running optimizatin method | |
| CN119134504A (en) | Voltage adaptive active support control method for grid-connected inverter | |
| CN110635704B (en) | Inverter bus voltage control method | |
| CN104734575B (en) | Motor control method and device | |
| CN104410347B (en) | A kind of method for driving compressor and the device for driving compressor | |
| CN106549582B (en) | A kind of waveform continuous transformation method reducing on-off times | |
| CN105491852A (en) | Radiating method for active power filter | |
| CN109358285B (en) | Method for detecting load imbalance of permanent magnet brushless direct current motor | |
| CN212324022U (en) | Crane cargo smooth lifting control system based on double-fed motor | |
| WO2023202072A1 (en) | Method and apparatus for controlling compressor, and air conditioner and storage medium | |
| CN112928958B (en) | Method for controlling machine-side terminal voltage of converter and corresponding controller | |
| CN203352177U (en) | Power factor dynamic-tracking voltage regulating and power saving device of beam-pumping unit | |
| CN107834675B (en) | Super capacitor charger for wind power pitch system and charging method thereof | |
| CN113654202A (en) | Control method and device of three-phase direct-current variable frequency air conditioner | |
| CN113654203A (en) | Control method and device of three-phase alternating-current variable-frequency air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200433 No. 1803, 1805, 1806, 335 and 1807, building 2, National Road, Yangpu District, Shanghai Patentee after: Shanghai Rujing Technology Co.,Ltd. Address before: 200433 No. 1803, 1805, 1806, 335 and 1807, building 2, National Road, Yangpu District, Shanghai Patentee before: SHANGHAI RUKING ELECTRONICS Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 200438 room 1204a, 75 Lane 1688, Guoquan North Road, Yangpu District, Shanghai Patentee after: Shanghai Rujing Technology Co.,Ltd. Address before: 200433 rooms 1803, 1805, 1806, 1807, building 2, 335 Guoding Road, Yangpu District, Shanghai Patentee before: Shanghai Rujing Technology Co.,Ltd. |