CN107222079A - Using direct current and the single-phase switch reluctance machine of two kinds of Principle of Electric Engine alternate runs of magnetic resistance - Google Patents
Using direct current and the single-phase switch reluctance machine of two kinds of Principle of Electric Engine alternate runs of magnetic resistance Download PDFInfo
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- CN107222079A CN107222079A CN201710589713.XA CN201710589713A CN107222079A CN 107222079 A CN107222079 A CN 107222079A CN 201710589713 A CN201710589713 A CN 201710589713A CN 107222079 A CN107222079 A CN 107222079A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/10—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using light effect devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
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Abstract
A kind of single-phase switch reluctance machine of use direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance, single-phase switch reluctance machine is stator and rotor structure with double-salient-pole, Exciting Windings for Transverse Differential Protection is installed in stator, the corresponding armature winding that motor can be made to be operated by DC electromotor principle is installed on rotor with salient pole, the magnetic line of force in the magnetic field that the sense of current of armature rotor winding is formed with the stator excitation winding is in tangent relation, be configured with i.e. to stator salient poles away to rotor with salient pole away from related, the code-disc at the residing characteristic point position angle of rotor rotation can be reflected again, directly detect to control two kinds of motor operation modes of switching magnetic resistance and direct current using optocoupler.The present invention improves power of motor density and operational efficiency, makes produced torque is overlapping can reduce torque pulsation by two kinds of Principle of Electric Engine alternate runs of direct current and magnetic resistance.
Description
Technical field
It is related to switching magnetic-resistance SR motors and direct current the invention belongs to single-phase switch reluctance machine field, especially one kind
The single-phase switch reluctance machine of two kinds of operation principles of machine.
Background technology
Motor institute consuming electric power accounts for more than the 60% of whole power network, with going deep into for energy-saving and emission-reduction requirement, improves motor effect
It is significant, it is especially even more so to buncher control field.
Electric automobile has obtained countries in the world and paid attention to extensively as the vehicles of energy-saving and emission-reduction, and is acknowledged as energy-conservation
The future automobile of environmental protection.Comprising any sort electric automobile be required for motor as executing agency come driving moment travel.
Therefore improve motor performance, reduce cost, be to improve all kinds of electric automobile cost performances, promote penetration and promotion top priority it
One.And electric automobile has efficiency of transmission height, response direct and fast using wheel hub motor, make a variety of automotive performance optimal controls easy
In realization；And substantial amounts of mechanical part cost is not only saved using wheel hub motor, mitigate automotive dead weight, also vacate many effective
Space is easy to vehicle structure to be laid out, and advantageously reduces automobile barycenter and bodywork height.But because wheel hub motor is by its structural volume
Limitation, when particularly larger to driving power, higher requirement is proposed to the specific volume power of motor.
The content of the invention
In order to overcome prior art in SR drive and control of electric machine, the driven nature reluctance torque as produced by stator winding electrifying
Region it is short and reduce utilization rate；And single-phase SR motors are without self-starting function, and torque pulsation larger shortcoming during operation.
The present invention proposes the corresponding electricity that increase can be such that motor is also operated by DC electromotor principle in the rotor of single-phase SR motors
Pivot winding, and code-disc is configured, directly detect to control the method for operation of switching two kinds of motors of magnetic resistance and direct current using optocoupler；Pass through
Make produced torque is overlapping can reduce torque pulsation by two kinds of Principle of Electric Engine alternate runs.To become by magnetic resistance
Motor is innovated with the combined type of two kinds of Principle of Electric Engine alternate runs of direct current.
The technical solution adopted for the present invention to solve the technical problems is：
The single-phase switch reluctance machine of a kind of use direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance, the single-phase switch
Reluctance motor is stator and rotor structure with double-salient-pole, and Exciting Windings for Transverse Differential Protection is provided with stator, is installed on rotor with salient pole
Have the corresponding armature winding that motor can be made to be operated by DC electromotor principle, the sense of current of the armature rotor winding with it is described
Stator excitation winding formation magnetic field the magnetic line of force be in tangent relation, and be configured with i.e. with stator salient poles away from rotor with salient pole away from
Correlation, can reflect the code-disc at the residing characteristic point position angle of rotor rotation again, directly detected using optocoupler control switching magnetic resistance and
Two kinds of motor operation modes of direct current, when that will turn off stator winding electrifying originally, respective direction is passed through to armature rotor winding
Electric current, and postpone the energization phase of stator winding to continue to retain corresponding electromagnetic field, make motor again by DC electromotor principle
Remain in operation；Using starting single-phase SR motors by DC electromotor principle drive manner.
Further, the salient stator number of poles of the single-phase switch reluctance machine is identical with rotor with salient pole number.It is of course also possible to not
It is identical.
Further, the single-phase switch reluctance machine is outer-rotor structure, and the rotor is located at the outside of stator, described
Rotor is constituted by the rotor discs of left and right two by shaft orientation layout and by a rotor cylinder of radial direction layout, the rotor cylinder
Two rotor discs in two ends and left and right be fixedly connected, from axially, the salient pole of each pole of the rotor discs and rotor cylinder
Elongation and groove elongation are consistent respectively to be alignd, and the Exciting Windings for Transverse Differential Protection is looped around in the salient pole of the stator, the armature rotor around
Group has two sets, is respectively embedded into the rotor discs of left and right two, often cover armature rotor winding include radial direction armature winding and it is interior,
Outer shroud line, radial direction armature winding is made up of some wires, is distributed at the salient pole in two rotor discs in left and right, every is led
Two of line is connected with inner and outer rings line respectively.For after radial direction armature winding in left and right both sides rotor discs is powered by
The turning moment direction that direct current generator principle is produced is consistent and is superimposed, the armature that will need to be embedded in left and right both sides rotor discs
The electromagnetism field direction that the inner and outer rings line of winding is produced by Exciting Windings for Transverse Differential Protection energization is connected, and is then drawn by brush.
Either：The single-phase switch reluctance machine is internal rotor, outer stator structure, and the stator is located at the outer of rotor
Side.
The technical concept of the present invention：Closed using the SR electromechanical linear inductance L shown in accompanying drawing 1 with rotor displacement angle θ change
System illustrates operation principle of the SR motors under various running statuses：When winding inductance L increases with rotational angle theta, even if stator and rotor are convex
When pole overlaps and risen therewith, that is, in characteristic point θ1~θ2In region, driven nature magnetic will be produced by being passed through electric current to winding
Resistive torque and enter motoring condition；Otherwise in increases of the winding inductance L with rotational angle theta, though stator and rotor salient pole be separated and therewith
During decline, that is, in characteristic point θ3~θ4There is electric current in region, and in winding, then produce braking torque and enter and generate electricity
Regenerating condition.And in the overlapping characteristic point θ of whole stator and rotor salient pole2~θ3In region, being persistently powered to winding can also be by electricity
Magnetic attraction produces electromagnetic braking.
Thus the period of change that SR motors only increase in winding inductance L with rotational angle theta is also illustrated, i.e., in characteristic point θ1~θ2
Just electric current produces driven nature reluctance torque in winding in region.And need to before rotor with salient pole becomes from stator salient poles lap position,
Complete because winding senses formed electric current release, that is, to terminate the afterflow period, otherwise can produce braking torque.It is to require for this
Characteristic point θ shown in accompanying drawing 1hrThe switching tube of winding current is connected in shut-off at position angle, so makes generation driven nature reluctance torque
Characteristic point θ1~θ2Region is merely with half.Though through theoretical research and practice it has been shown that the constant of the machine of routine SR motors
(representing torque under unit armature volume) is slightly above asynchronous machine, if but can try to extend the Operational Zone for producing driven nature torque
Domain, must will further improve power of motor density and its operational efficiency.Direct current generator operation logic is combined for this：It is logical in magnetic field
Electric conductor is determined the electromagnetic torque in direction by being produced according to law of electromagnetic force by left hand rule.Thus i.e. using SR motor stators
The magnetic field that winding has been produced in motor, then respective conductors are arranged on rotor, when originally stator winding electrifying will be turned off, give
Conductor on rotor is passed through the electric current of respective direction, and suitably postpones the energization phase of stator winding to continue to retain corresponding electromagnetism
, motor is remained in operation again by DC electromotor principle.So become and alternately transported by two kinds of Principle of Electric Engine of magnetic resistance and direct current
Capable combined type innovation motor.
For specific implementation, the design feature of all kinds switched reluctance machines is further analyzed, above-mentioned improvement is thought
It is preferable combined method naturally that road, which is used for a kind of single-phase switch reluctance machine,.Single-phase switch reluctance machine have it is simple in construction,
Firm reliable, manufacturing cost is low, due to only needing one phase winding of control also to make driver cost minimum.And the whole circumference of motor
Only it is laid out a phase, you can avoid due to the salient stator number of poles N of conventional radial direction split-phase SR motorss, rotor with salient pole number NrWith number of phases m it
Between must be fulfilled for relational expression：Ns=2km, Nr=Ns- 2km, K are the constraint of integer, and when making each phase energization operation, its stator is only
Only it can be worked with wherein small part rotor with salient pole.It is equal for the settable stator and rotor salient pole number of single-phase SR motors, so that winding
Being powered when running can function both on all rotor with salient pole on circumference, improve magnetic circuit utilization rate with this, also just improve list
Position summation watt rating and its operational efficiency.But the disadvantage of single-phase SR motors is no self-starting function, though it is described using each
The method for planting assistant starting, but its effect is undesirable, and also making the specific volume power of motor reduces, and motor also can only folk prescription
To operating.Thus make this cheap and efficient motor is difficult to enter practical.And single-phase SR motors also have one to have the disadvantage fortune
Torque pulsation is larger during row.And two shortcomings can be just addressed by the above-mentioned mode combined with direct current generator：Open
Started when dynamic using direct current generator operating principle；Produced torque will be made by two kinds of Principle of Electric Engine alternate runs during operation
It is overlapping to reduce torque pulsation.And the process of two kinds of Principle of Electric Engine operations of magnetic resistance or direct current when is pressed for required switching, press
The stator and rotor salient pole of designed single-phase switch reluctance machine configures corresponding code-disc away from structure, directly detected using optocoupler come
Control it to switch.
By illustrating work with rotor displacement angle θ variation relations to the SR electromechanical linear inductance L shown in foregoing utilization Fig. 1
The analysis of principle, has drawn existing SR motors in operation driving rotation, and can produce driven nature magnetic resistance merely with half turns
The characteristic point θ of square1~θ2Region.It is close to improve power of motor to try to further expand the operation area for producing driven nature torque
Degree and its operational efficiency, with reference to direct current generator operation logic：Electrical conductor in magnetic field will be produced according to law of electromagnetic force by a left side
Hand rule determines the electromagnetic torque in direction.The magnetic field produced in motor using SR motor stator windings, then in rotor
Upper arrangement respective conductors, when that will turn off stator winding electrifying originally, the electric current of respective direction is passed through to the conductor on rotor, and
Suitably postpone the energization phase of stator winding to continue to retain respective electromagnetic field (EMF), so with regard to motor can be made again by DC electromotor principle
Remain in operation.The improved though of two kinds of Principle of Electric Engine alternate runs of magnetic resistance and direct current is pressed according to this, is further analyzed
State single-phase switch reluctance machine design feature and operation present in advantage and disadvantage, illustrate the rotor in single-phase switch reluctance machine
On be further added by by direct current generator principle run corresponding armature winding, can preferably maximize favourable factors and minimize unfavourable ones, as by magnetic resistance and direct current
The combined type innovation motor of two kinds of Principle of Electric Engine alternate runs.And for requiring promptly and accurately to control two kinds of switching magnetic resistance and direct current
The problem of the method for operation.It can reflect that rotor rotates institute again away from related using the stator and rotor salient pole to being controlled single-phase SR motors
Locate the special code-disc at characteristic point position angle, directly detect to control switching by optocoupler.
Beneficial effects of the present invention are mainly manifested in：Directly detected using code-disc, you can residing feature is rotated by rotor
Point position promptly and accurately controls switching by the process of direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance.Solve single-phase SR electricity
The starting problem of machine and played its advantage；The operation area for producing driving torque is have also been enlarged, so as to improve power of motor
Density and operational efficiency, make produced torque is overlapping can reduce by two kinds of Principle of Electric Engine alternate runs of direct current and magnetic resistance
Torque pulsation.And can be preferably by the various methods of operation of switching needed for load using special code-disc detection control：Different directions
Starting, driven by power, electrification feedback and electromagnetic braking.And in the wheel hub motor driven applied to electric automobile, using generating electricity back
Present the braking procedure being combined with electromagnetic braking, i.e., it is anti-similar to the anti-lock braking system ABS in Modern Car and its driving
Slip control ASR braking procedure, i.e., not only realize energy regenerating, mainly also improves stable manipulation in vehicle traveling
Security.
Brief description of the drawings
Fig. 1 is variation relation figures of the existing SR electromechanical linears inductance L with rotor displacement angle θ.
Fig. 2 is the variation relation figure of the single-phase SR electromechanical linears inductance L that reflects by embodiment with rotor displacement angle θ.
Fig. 3 is the axial section of a kind of use direct current and the single-phase SR wheel hub motors of two kinds of Principle of Electric Engine alternate runs of magnetic resistance
Structural representation.
Fig. 4 is Fig. 3 radial direction A-A cross-sectional views.
Fig. 5 is Fig. 3 radial direction B-B cross-sectional views.
Fig. 6 is the feature point detection code-disc and optocoupler schematic layout pattern designed by embodiment.
Embodiment
Embodiment is described further below in conjunction with the accompanying drawings.
A kind of 2~Fig. 6 of reference picture, the single-phase SR motors of use direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance, is also needed
Using variation relations of the SR electromechanical linear inductance L shown in accompanying drawing 1 with rotor displacement angle θ, analysis is by direct current and two kinds of electricity of magnetic resistance
Present characteristic point region when machine principle is run, with by adjusting stator and rotor number of poles and salient pole away from waiting dependency structure parameter,
Expansion can be generated the operation area of driven nature torque by two kinds of Principle of Electric Engine, and improve the various runnabilities of correlation.To make
During stator excitation, all salient poles of stator and rotor work each other, it is desirable to which the number of poles of stator and rotor or pole span angle are equal；To change
Kind torque pulsation need to suitably increase number of poles, and take into account the mechanical strength of stator and rotor salient pole root portion, set stator poles Ns, turn
Sub- number of poles NrIt is 18, such stator poles elongation τs, rotor pole span angle τr=360/18=20 °.Utilize described in accompanying drawing 1 points
Analysis is understood：In the overlapping maximum induction characteristic point θ of whole stator and rotor salient pole2~θ3Region, is the fortune by direct current generator principle
Row area, is also the region for implementing electromagnetic braking.It should suitably increase stator salient poles away from β for thissWith rotor with salient pole away from βrGap, with
Increase θ2~θ3Region, further analyzes βr＞ βsOr βs＞ βrTwo kinds of situations, two kinds of motor originals of magnetic resistance or direct current are pressed to increase
Reason produces the influence all same of the operation area of driven nature torque.And be reduction and β to outer rotor hub motorrWhat is be directly proportional turns
Sub- weight and rotary inertia, still set βs＞ βrPreferably.
By above-mentioned mentality of designing, stator salient poles are further set away from βs=9.9 °, rotor with salient pole is away from βr=7.8 °, rotor is recessed
Slot pitch αr=20-7.8=12.2 ° so that the θ of minimum inductance-1~θ1Region is αr-βs=12.2-9.9=2.3 °, maximum induction
θ2~θ3Region is βs-βr=9.9-7.8=2.1 °.It is derived from the single-phase SR motors as shown in Figure 2 reflected by embodiment
Linear inductance L can design corresponding motor characteristic point by this and detect code-disc with rotor displacement angle θ variation relation figure.
Referring to the drawings 3~Fig. 6, the single-phase switch magnetic resistance electricity of a kind of use direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance
Machine, the single-phase switch reluctance machine is stator 1 and the structure of rotor 2 with double-salient-pole, and Exciting Windings for Transverse Differential Protection is provided with stator 1
3, the corresponding armature winding 4 that motor can be made to be operated by DC electromotor principle, the rotor electricity are installed on the salient pole of rotor 2
The magnetic line of force in the magnetic field that the sense of current of pivot winding 4 is formed with the stator excitation winding 3 is in tangent relation, it is characterised in that：
It is configured with i.e. to stator salient poles away from the special code at the residing characteristic point position angle of rotor rotation away from related, can be reflected again to rotor with salient pole
Disk 5, controls to switch two kinds of motor operation modes of magnetic resistance and direct current using the directly detection of three optocouplers 6.The special code-disc 5
With the synchronous rotary of rotor 2, can reflect the salient pole to rotor 2 away from related characteristic point position angle, three optocouplers 6 are placed in
In optocoupler fixed plate 7, the light center of penetrating of three optocouplers 6 is controlled the electrical angle of SR motors for τ each otherr=20 °, the optocoupler is fixed
Plate 7 is fixed using the keyway positioning on motor shaft 8, so that certain three salient pole center for penetrating light center and stator 1 of three optocouplers 6
Alignment.
The single-phase switch reluctance machine be outer-rotor structure, the rotor 2 be located at stator 1 outside, the rotor 2 by
Constituted by the rotor discs 9 of left and right two of shaft orientation layout and by a rotor cylinder 10 of radial direction layout, the rotor cylinder 10
Two ends and left and right two rotor discs 9 be fixedly connected by six roots of sensation long bolt 11, from axially, the rotor discs 9 and rotor
The salient pole elongation of each pole of cylinder 10 is respectively consistent with groove elongation to align.The stator 1 is by the left and right two by shaft orientation layout
Individual stator disk 12 is fixedly connected with middle stator slot bottom disk 13 by six roots of sensation rivet 14, from axial direction, the stator of left and right two
The salient pole elongation of disk 12 is consistent alignment with groove elongation.The Exciting Windings for Transverse Differential Protection 3 is looped around the stator in the middle of the stator 1
On bottom land disk 13, such winding is to be easy to coiling, can also increase copper factor.The armature rotor winding 4 has two sets, and difference is embedding
Enter in the rotor discs 9 of left and right two, often cover armature rotor winding 4 include radial direction armature winding 15 and inner ring line 16, it is outer
Ring line 17, radial direction armature winding 15 is made up of some wires, is distributed at the salient pole in two rotor discs 9 in left and right, often
Two of root wire is connected with inner ring line 16, outer shroud line 17 respectively.Because Exciting Windings for Transverse Differential Protection is Gramme winding, according to the right hand
Spiral law be powered after produced by magnetic direction to fix based on axial direction, the position as shown in accompanying drawing 3 is left and right S, N extremely square
To forming closed magnetic circuit by outer rotor.Because magnetic direction immobilizes, led according to the energization in its magnetic field of law of electromagnetic force
Body Impact direction is judged by left hand rule, it is desirable to which the armature winding run by direct current generator is radial direction, is equal as shown in Figure 4
The radial direction armature winding 15 in two rotor discs 9 in left and right is distributed in, to make the radial direction armature winding in left and right both sides rotor discs
The turning moment direction produced after 15 energizations by direct current generator principle is consistent and is superimposed, and need to will be embedded in left and right both sides rotor and justify
The electromagnetism field direction that the inner and outer rings line of armature winding in disk is produced by the energization of Exciting Windings for Transverse Differential Protection 3 is connected, then by defeated
The round and smooth ring 18 of copper coordinates brush 19 to draw, and the brush 19 is fixed on brush carrier 20.Because energization direction is unidirectional, its electricity
Brush would not also have the drawbacks such as the commutation spark of direct current generator.
The stator 1 is fastened by key 21 with motor shaft 8, and the stator excitation winding 3 passes through the endoporus phase with motor shaft 8
Draw in two logical winding leading-out wire holes 22；Two rotor discs 9 in the left and right are by the bearing 23 of left and right two with rotatable side
Formula is connected with motor shaft 8, it is contemplated that there is axial direction, radial magnetic force during motor operation simultaneously, and its bearing uses radial-thrust
Bearing, to reduce mechanical oscillation.Two bearings 23 in the left and right are fixed by two nuts 24.
Include three layers of saturating, pole of being in the light on the special code-disc 5, whole circumference is using motor electrical angle as 20 ° of loop cycles
Uniformly, every layer of saturating, pole of being in the light is detected by an optocoupler respectively, the single-phase SR motors reflected with reference to the accompanying drawings shown in 2 by embodiment
Linear inductance L sets every layer of the printing opacity pole span, the pole span that is in the light to be respectively shown in following table with rotor displacement angle θ variation relation figure,
The detection state value of 3 optocouplers is 1 by printing opacity, be in the light represents for 0.
So make code-disc and outer rotor synchronous rotary, often go to corresponding characteristic point interval：θ-1~θ0、θ0~θ1、θ1~
θhr、θhr~θ2、θ2~θ3、θ3~θ-hr、θ-hr~θ-1At position angle, 3 optocoupler output state values are respectively：101、010、100、
011st, 000,110,001, the relative characteristic point position of stator and rotor salient pole can be differentiated according to state value, to implement corresponding control.
Also need to define the corresponding operation area that each characteristic point is interval using described in accompanying drawing 2 herein：θ0~θ1Angular zone is opened to rotate forward,
Also angular zone is opened for reversion overload；θ-1~θ0Angular zone is opened for reversion, also angular zone is opened to rotate forward overload；θ1~θhrFor
The main conducting region of electric current is rotated forward, is also reversion electrification feedback shut-off end region；θhr~θ2To rotate forward shut-off afterflow region,
Region is opened for reversion electrification feedback；θ2~θ3For stator and rotor salient pole overlapping region, as forward and backward electromagnetic braking region,
For by DC electromotor principle operation area；θ3~θ-hrFor reversion shut-off afterflow region, also area is opened to rotate forward electrification feedback
Domain；θ-hr~θ-1Also it is the end region of rotating forward electrification feedback shut-off for the main conducting region of reverse current.Due to accompanying drawing 2 be by
The relation that linear inductance L statements change with rotor position angle θ, so the characteristic point position differentiated according to 3 optocoupler output state values
Region is put, the corresponding control carried out by above-mentioned definition also needs to compensate control by the Dual-loop feedback control of rotating speed, electric current.Rotating speed
It can be obtained according to 360/18=20 ° of the motor electrical angle, divided by optocoupler output state value changes cycle；For electric current just to go to
θ1(rotating forward) or θ-1Surveyed when (reversion) as reference value.
Motor operation is now illustrated by taking the motor shown in 2~Fig. 6 of accompanying drawing as an example in electric motor starting, driven by power, hair
The course of work of electric each state of feedback and electromagnetic braking.The mistake of direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance is followed during control
Journey.
The electric motor starting course of work：
It is required that being stopped when motor is stalled every time using electromagnetic braking mode, to make stator and rotor convex by electromagnetic braking
Pole tooth is in the equilbrium position of alignment.If because various factors makes stator and rotor salient pole tooth non-equilibrium in what is do not lined up when starting
Position, i.e., need to first pass through electromagnetic braking so that stator and rotor salient pole tooth is in the equilbrium position of alignment, to this using special code-disc
Detection is obtained, as in characteristic point θ2~θ3Position area, when optocoupler output state value is 000.Now in Exciting Windings for Transverse Differential Protection energization institute
In the magnetic field of generation, the electric current of respective direction is passed through by required steering to armature rotor winding, motor just presses dc motor
Principle starts rotation.Then just according to 3 optocoupler output state values, defined with reference to described in foregoing utilization accompanying drawing 2 in each feature
Interval corresponding operation area is put to be controlled as follows.
The driven by power course of work：
Assuming that requiring that motor is rotated forward, i.e., when state value is 010, control makes stator excitation winding be powered, and magnetic resistance is pressed to realize
Principle of Electric Engine rotates；The electric current for controlling to make armature rotor winding be passed through respective direction when state value is 011 is gone to, realizes and presses direct current
Principle of Electric Engine is rotated with equidirectional, need to turn off the energization of stator excitation winding in the region originally, but also needs to keep electromagnetic field
And should be delayed to turn off；I.e. delay is gone to controls to turn off the energization of stator excitation winding again when state value is 110, due to stator winding
Still in the afterflow period, motor also still keeps corresponding electromagnetic field, continues by the rotation of direct current generator principle；It is 001 when going to state value
When control shut-off armature rotor winding be powered, rotor is leaned on after about 5.05 ° of inertial rotation, and it is 010 that state value can be gone to again
Characteristic point region；So proceed as described above the control that goes round and begins again.The specific turn-on angle of switch tube, shut-off angle can also pass through experiment
Further to adjust, and using rotating speed, current double closed-loop feedback control come dynamic regulation.
So make motor by direct current generator principle and variable reluctance principle two ways alternate run, even if torque exports the cycle
It is multiplied, also makes the torque of each runtime overlapping, so as to reduces torque pulsation.Institute's combined type innovation motor will be very big
Improve motor power density, and electric automobile power-driven system cost performance.Being similarly when meeting electric automobile during traveling has
Wider speed adjustable range, needs to use current chopping CCC control modes during low speed to obtain speed regulation by constant torque characteristic, and can reduce to turn
Square is pulsed；The higher angle position APC control modes of efficiency are used to realize constant-power speed regulation characteristic in high speed.If it is desired to electric
When machine is inverted, you can corresponding to carry out by the defined corresponding operation area interval in each characteristic point of foregoing utilization accompanying drawing 2
Similar control.Because in unidirectional rotary course, armature rotor winding is powered during operation, and electric current is always folk prescription
To its brush is not in that institute's brush life can be considerably long such as drawbacks such as the commutation sparks of dc motor.
The electrification feedback course of work：
When electric automobile needs reduction of speed to brake or descending is run, you can utilize its kinetic energy inertia to carry out electrification feedback, realize
Energy regenerating improves continual mileage.And the status value signal detected according to characteristic point position corner brace disk, by controlling two in time
The switching tube break-make of winding is planted, the electrification feedback control by the two kinds of principles operations of dc generator and reluctance generator can be also realized
System.When going to state value for 000 time control turn-on stator excitation winding energization excitation, on the one hand the magnetic field of generation make armature rotor
Winding is run by dc generator principle, on the other hand also carries out electromagnetic braking；By rotating forward when it is 110 that inertia, which goes to state value,
Stator excitation winding energization is continued to turn on, makes to carry out electrification feedback by reluctance motor principle, even if the magnetic produced by stator winding
Field will produce the moment of resistance of opposite direction to rotor, and rotor kinetic energy also is converted into Magnetic Energy Storage in magnetic field；Going to state value is
The switching tube of stator winding is connected in control shut-off when 001, is now changed the magnetic energy being stored in magnetic field by fly-wheel diode
Charged for electric energy feedback to battery.
The electromagnetic braking course of work：
When motor needs braking to stop after above-mentioned electrification feedback reduction of speed, i.e., stator winding is persistently powered, it is produced
Magnetic field makes each pair of salient pole tooth of stator and rotor mutually be held and braked by electromagnetic force, and brake force is also by each salient pole tooth of motor circumference
Distribution and circumferentially symmetrically.As a result of monophase machine so that the attracting salient pole tooth pitch of motor stator and rotor greatly increases
Plus, by the electric machine structure can make stator and rotor salient pole with electromagnetism it is attracting and overlap total polar arc back gauge reach βr(7.8) × 18=
140.4 degree, and not only radially make stator salient poles tooth and rotor cylinder salient pole tooth attracting in motor, and in the axial direction on motor both sides
Make stator conical salient pole tooth and rotor discs taper salient pole tooth attracting, and in stator and rotor salient pole overlapping region βs-βr=2.1 °
In continue.Such as when motor kinetic energy inertia is larger, also need to detect signal according to angle position, braked using with foregoing electrification feedback
It is combined method to be repeated, untill the unchanged i.e. stopping of position detection of rotational angle theta.Electromagnetic braking-the electrification feedback
The braking procedure being repeated is braked, ABS system is braked similar to automobile anti-lock braking and Anti-slip regulation turns control ASR braking
Journey, you can the braking safety of vehicle traveling is greatly improved.
Claims (4)
1. the single-phase switch reluctance machine of a kind of use direct current and two kinds of Principle of Electric Engine alternate runs of magnetic resistance, the single-phase switch magnetic
It is stator and rotor structure with double-salient-pole to hinder motor, and Exciting Windings for Transverse Differential Protection is provided with stator, the armature rotor winding
The magnetic line of force in the magnetic field that the sense of current is formed with the stator excitation winding is in tangent relation, it is characterised in that：In rotor with salient pole
On the corresponding armature winding that motor can be made to be operated by DC electromotor principle is installed, be configured with i.e. with stator salient poles away from and rotor
Salient pole can reflect the code-disc at the residing characteristic point position angle of rotor rotation again away from correlation, directly detect to control switching using optocoupler
Two kinds of motor operation modes of magnetic resistance and direct current；When originally stator winding electrifying will be turned off, phase is passed through to armature rotor winding
The electric current in direction is answered, and postpones the energization phase of stator winding to continue to retain corresponding electromagnetic field, makes motor again by direct current drive
Machine principle remains in operation；Using starting single-phase SR motors by DC electromotor principle drive manner.
2. the single-phase switch magnetic resistance electricity of a kind of use direct current as claimed in claim 1 and two kinds of Principle of Electric Engine alternate runs of magnetic resistance
Machine, it is characterised in that：The salient stator number of poles of the single-phase switch reluctance machine is identical with rotor with salient pole number.
3. the single-phase switch magnetic of a kind of use direct current as claimed in claim 1 or 2 and two kinds of Principle of Electric Engine alternate runs of magnetic resistance
Hinder motor, it is characterised in that：The single-phase switch reluctance machine is outer-rotor structure, and the rotor is located at the outside of stator, institute
State rotor to constitute by the rotor discs of left and right two by shaft orientation layout and by a rotor cylinder of radial direction layout, the rotor circle
Two rotor discs in the two ends of cylinder and left and right are fixedly connected, and from axially, the rotor discs are convex with each pole of rotor cylinder
Pole span angle is looped around in the salient pole of the stator with the consistent alignment respectively of groove elongation, the Exciting Windings for Transverse Differential Protection, the armature rotor
Winding has two sets, is respectively embedded into the rotor discs of left and right two, often cover armature rotor winding include radial direction armature winding and
Inner and outer rings line, radial direction armature winding is made up of some wires, is distributed at the salient pole in two rotor discs in left and right, often
Two of root wire is connected with inner and outer rings line respectively；To make the radial direction armature winding in left and right both sides rotor discs be powered
The turning moment direction produced afterwards by direct current generator principle is consistent and is superimposed, and will need to be embedded in left and right both sides rotor discs
The electromagnetism field direction that the inner and outer rings line of armature winding is produced by Exciting Windings for Transverse Differential Protection energization is connected, and is then drawn by brush.
4. the single-phase switch magnetic of a kind of use direct current as claimed in claim 1 or 2 and two kinds of Principle of Electric Engine alternate runs of magnetic resistance
Hinder motor, it is characterised in that：The single-phase switch reluctance machine is internal rotor, outer stator structure, and the stator is located at rotor
Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589713.XA CN107222079A (en) | 2017-07-19 | 2017-07-19 | Using direct current and the single-phase switch reluctance machine of two kinds of Principle of Electric Engine alternate runs of magnetic resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589713.XA CN107222079A (en) | 2017-07-19 | 2017-07-19 | Using direct current and the single-phase switch reluctance machine of two kinds of Principle of Electric Engine alternate runs of magnetic resistance |
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| CN107222079A true CN107222079A (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589713.XA Pending CN107222079A (en) | 2017-07-19 | 2017-07-19 | Using direct current and the single-phase switch reluctance machine of two kinds of Principle of Electric Engine alternate runs of magnetic resistance |
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| CN (1) | CN107222079A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631662A (en) * | 2018-05-11 | 2018-10-09 | 莱克电气股份有限公司 | A kind of method, apparatus and system of switched reluctance machines braking |
| CN109088516A (en) * | 2018-09-20 | 2018-12-25 | 冉隆春 | A kind of energy-saving direct-current motor that stall is not burnt |
| CN111682806A (en) * | 2020-06-17 | 2020-09-18 | 山东艾磁驱动科技有限公司 | Method for low-speed vibration operation of 8-6 pole switch reluctance motor for food machinery |
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| CN101662199A (en) * | 2009-09-22 | 2010-03-03 | 浙江工业大学 | Single-phase switch reluctance multifunctional motor with starting winding |
| CN102170215A (en) * | 2011-04-25 | 2011-08-31 | 浙江工业大学 | Efficient reluctance type multi-functional motor with axial and radial three-dimensional mixed magnetic circuit in axial split phases |
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| CN101662199A (en) * | 2009-09-22 | 2010-03-03 | 浙江工业大学 | Single-phase switch reluctance multifunctional motor with starting winding |
| CN102170215A (en) * | 2011-04-25 | 2011-08-31 | 浙江工业大学 | Efficient reluctance type multi-functional motor with axial and radial three-dimensional mixed magnetic circuit in axial split phases |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631662A (en) * | 2018-05-11 | 2018-10-09 | 莱克电气股份有限公司 | A kind of method, apparatus and system of switched reluctance machines braking |
| CN108631662B (en) * | 2018-05-11 | 2021-08-24 | 莱克电气股份有限公司 | A method, device and system for braking a switched reluctance motor |
| CN109088516A (en) * | 2018-09-20 | 2018-12-25 | 冉隆春 | A kind of energy-saving direct-current motor that stall is not burnt |
| CN109088516B (en) * | 2018-09-20 | 2023-07-14 | 冉隆春 | Energy-saving direct-current motor with dead-stop and unfired rotor |
| CN111682806A (en) * | 2020-06-17 | 2020-09-18 | 山东艾磁驱动科技有限公司 | Method for low-speed vibration operation of 8-6 pole switch reluctance motor for food machinery |
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Application publication date: 20170929 |