CN104852659A - Switching reluctance motor control device and control method thereof - Google Patents
Switching reluctance motor control device and control method thereof Download PDFInfo
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- CN104852659A CN104852659A CN201410379301.XA CN201410379301A CN104852659A CN 104852659 A CN104852659 A CN 104852659A CN 201410379301 A CN201410379301 A CN 201410379301A CN 104852659 A CN104852659 A CN 104852659A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000000875 corresponding effect Effects 0.000 claims description 17
- 230000002596 correlated effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 230000002964 excitative effect Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
A switching reluctance motor control device and a control method thereof. The control method of the switching type reluctance motor control device comprises the following steps: obtaining an outgoing phase current and an incoming phase current; judging the angle corresponding to the relevant current component of the outgoing phase current and the incoming phase current so as to provide an angle control result; calculating a total effective current according to the outgoing phase current and the incoming phase current; and current distribution processing is carried out according to the total effective current, the related current of the speed loop and the angle control result, so that the exciting current of the phase current starts between a first corner (the corner where the inductance is rising) and a second corner (the corner where the inductance reaches the maximum value), the current end of the phase current is finished no later than the second corner, and the exciting current of the phase current is finished at the current end of the phase current.
Description
Technical field
The invention relates to switching magneti-resistance motor, particularly about a kind of excitatory and demagnetizing current waveform via controlling switching magneti-resistance motor, to fall the control method of its stator coil copper loss.
Background technology
In known technology, switching magneti-resistance motor can cause efficiency reduce loss aspect, copper loss, iron loss and machinery is had to damage equivalent damage, wherein copper loss produced by coil resistance and exciting curent, iron loss produced by switching field, and machinery damages then by the frictional force that rotor bearing connecting motor is had when rotated is produced.
Fig. 1 illustrates the schematic diagram into coil inductance corresponding to the rotor angle of known switching magneti-resistance motor wherein two-phase.In Fig. 1, solid line is for going out phase (Outgoing phase), and namely contiguous two-phase overlaps and is about to the phase of degaussing, and dotted line is for entering phase (Incoming phase), and namely contiguous two-phase overlaps just excitatory.1-1/1-2 interval for go out phase/enter phase inductance value minimum in, inductance is zero to the differential of rotor angle, does not now react electromotive force, and the rise time of exciting curent can be very short, but do not produce any torque.Interval for going out phase/enter phase inductance elevated areas at 1-3/1-4, now under ideal conditions, inductance is a positive slope to the differential of rotor angle, and the rise time of exciting curent, because reacting the existence of electromotive force, is therefore directly proportional to electric current to rotating speed, positive torque can be produced, between excitatory optimal zone.1-5/1-6 interval for go out phase/enter phase inductance value the highest in, inductance is zero to the differential of rotor angle, and the rise time of exciting curent is more interval than 1-1/1-2 long, because inductance is larger, this interval does not produce any torque, and ideal does not allow electric current in this interval conducting.Interval for going out phase/enter phase inductance decline region at 1-7/1-8, now under ideal conditions, inductance is a negative slope to the differential of rotor angle, and exciting curent can produce negative torque in this interval, does not wish this interval generation current again.
As shown in the above description, switching magneti-resistance motor, because of structural relation, have two-phase overlapping rising inductor section, and non-essential copper loss is easily caused in this overlapping rising inductor section.
Summary of the invention
An object of the present invention is providing a kind of switching magneti-resistance controller for motor and control method thereof, effectively to control the current waveform of excitatory and degaussing, the copper loss of the stator coil of switching magneti-resistance motor can be made to reduce, and overall efficiency can be promoted.
The present invention proposes a kind of switching magneti-resistance controller for motor, and above-mentioned switching magneti-resistance controller for motor comprises feedback current acquisition unit, control unit, pulse bandwidth control current unit and asymmetrical half-bridge frequency converter.Above-mentioned feedback current acquisition unit couples motor, to obtain away phase current and to enter phase current.Above-mentioned control unit couples feedback current acquisition unit, to process away phase current and to enter phase current, the exciting curent entering phase current is made to start between the first corner (inductance is about to the corner risen) and the second corner (inductance arrives the corner of maximum), the electric current end of phase current of going out terminates after being not later than the second corner, and when the exciting curent entering phase current ends at away the electric current end of phase current.Above-mentioned pulse bandwidth controls current unit and couples control unit, with receive above-mentioned process go out phase current and above-mentioned process enter phase current, to produce drive singal.Above-mentioned asymmetrical half-bridge frequency converter couples pulse bandwidth and controls current unit and motor, to control the operation of motor according to drive singal.
In one embodiment of this invention, if after the electric current end that control unit detects away phase current ends at the second corner, then control unit controls away phase current and makes electric current end be no more than the second corner.
In one embodiment of this invention, the exciting curent that control device controls to enter phase current shifts to an earlier date lead angle, before the demagnetizing current making the exciting curent entering phase current start from away phase current starts to produce.
In one embodiment of this invention, the exciting curent that control device controls away phase current starts from the first corner or before.
In one embodiment of this invention, this exciting curent entering phase current starts from this certain electric current of going out phase current and transfers the corresponding corner of a demagnetizing current to.
The present invention separately proposes a kind of control method of switching magneti-resistance controller for motor, comprises: (a) obtains away phase current and enter phase current; B () judges away phase current and the angle corresponding to correlated current composition entering phase current, to provide an Angle ambiguity result; (c) according to go out phase current with enter phase current and calculate a total effective current; And (d) carries out electric current allocation process according to total effective current, speed loop correlated current and Angle ambiguity result, the exciting curent entering phase current is made to start between the first corner and the second corner, the electric current end of phase current of going out terminates after being not later than the second corner, and when the exciting curent entering phase current ends at away the electric current end of phase current.
In one embodiment of this invention, wherein in step (b) with step (d), if after the electric current end detecting away phase current ends at the second corner, then adjustment enter phase current make away the electric current end of phase current by control be no more than the second corner.
In one embodiment of this invention, wherein in step (d), the exciting curent wherein entering phase current is controlled the first corner or is shifted to an earlier date lead angle, before the demagnetizing current making the exciting curent entering phase current start from away phase current starts to produce.
In one embodiment of this invention, wherein in step (d), the exciting curent of phase current of going out is started from the first corner or before by control.
In one embodiment of this invention, wherein in step (d), the exciting curent entering phase current is transferred to the corresponding corner of a demagnetizing current by certain electric current that control starts from away phase current.
Based on above-mentioned, switching magneti-resistance controller for motor of the present invention and control method thereof adopt external loop speeds control and inner looping Current Control, utilize Current Control indirectly controlling torque, required torque can be met to make the Current Control of two-phase overlapping rising inductor section, make the integration of the electric current of overlapping area minimum, reduce copper loss, with raising efficiency.
So, can be further understood in fact via following detailed description and accompanying drawings solution about the advantages and spirit of the present invention.
Accompanying drawing explanation
Accompanying drawing is below a part for specification of the present invention, and it depicts example embodiment of the present invention, and institute's accompanying drawings is used for principle of the present invention is described together with the description of specification.
Fig. 1 illustrates the schematic diagram into coil inductance corresponding to the rotor angle of the wherein two-phase of known switching magneti-resistance motor.
Fig. 2 illustrates the functional block diagram into switching magneti-resistance motor apparatus of the present invention.
Fig. 3 illustrates the built-in function block schematic diagram of the advanced angle control unit into one embodiment of the invention.
Fig. 4 illustrates the flow chart of the control method that electric current that the two-phase into one embodiment of the invention overlaps distributes.
The electric current that Fig. 5 illustrates one embodiment of the invention is to inductance value and the schematic diagram of export by constant moment that produces.
Fig. 6 illustrates the behavior schematic diagram of another embodiment of the present invention electric current to inductance value schematic diagram and the electric current under the condition of two kinds of different times.
Embodiment
At present with detailed reference to one exemplary embodiment of the present invention, and the example of described one exemplary embodiment is described in the accompanying drawings.In addition, in drawings and the embodiments use assembly/component that is identical or like numerals will to be used to represent identical or similar portions.In following all embodiments, when assembly is regarded as " connection " or " coupling " to another assembly, it can be connection between connection electrically, data or signal transmission, directly connects or be coupled to another assembly, maybe may there is intervenient assembly.
The present invention is a kind of switching magneti-resistance controller for motor, and couples a motor.It illustrates the functional block diagram of switching magneti-resistance motor apparatus of the present invention with Fig. 2.In Fig. 2, switching magneti-resistance motor apparatus comprises motor 2-6, asymmetrical half-bridge frequency converter 2-5, pulse bandwidth controls current unit 2-4, feedback current acquisition unit 2-7, control unit 2-0, PI controller 2-9 and angle differentiator 2-10, and wherein control unit 2-0 also comprises effective current and estimates side unit 2-1, current distribution unit 2-2 and angle control unit 2-3.
In the present embodiment, the motor 2-6 of above-mentioned Fig. 2 is reluctance type motor.Said motor 2-6 couples asymmetrical half-bridge frequency converter 2-5 and feedback current acquisition unit 2-7 respectively.Feedback current acquisition unit 2-7 also couples control unit 2-0 and angle differentiator 2-10, and above-mentioned control unit 2-0 couples feedback current acquisition unit 2-7 and pulse bandwidth controls current unit 2-4.
In the present embodiment Fig. 2, effective current in control unit 2-0 estimates side unit 2-1, current distribution unit 2-2 and angle control unit 2-3, PI controller 2-9 and angle differentiator 2-10 can utilize implement software, but the present invention not limit be with implement software.
In fig. 2, feedback current acquisition unit 2-7 can comprise Hall element, analog/digital converter and rotary encoder.In the present embodiment, feedback current acquisition unit 2-7 can implement with hardware.Above-mentioned Hall element can be used to the real-time current value sensing motor 2-6, rotary encoder can in order to measure rotor-position, the real-time current value of above-mentioned amount side comprises away phase current and enters phase current, and go out phase current with enter phase current and also can be resent to control unit 2-0 after the analog/digital converter of feedback current acquisition unit 2-7 is changed.
In addition, in Fig. 2, the present embodiment adopts external loop speeds control and inner looping Current Control, in order to by Current Control indirectly controlling torque, and the control of this switching magneti-resistance motor.During loop speeds controls outside, rotary encoder the rotor-position that measures can be sent to angle differentiator 2-10, to carry out differential, to obtain a motor rotary speed information.Then, reoffer a default speed order, to carry out one first calculation process to default speed order and motor rotary speed information, to obtain a speed difference.Then, then by PI controller 2-9 produce a predetermined current.
The inner looping Current Control of Fig. 2 described above utilizes effective current to estimate side unit 2-1, current distribution unit 2-2 and angle control unit 2-3 reaches.Above-mentioned angle control unit 2-3 carries out an optimization Angle ambiguity process, and this controlling mechanism mainly controls shorting advance angle, and under certain low-speed situations, shorting advance angle is can not be in check, and shorting advance angle can not more than θ
1, relevant its illustrates, is detailed later.Above-mentioned effective current estimate side unit 2-1 mainly detect measure go out phase current with whether enter phase current be effective current, in the present embodiment, effective current representative can provide the electric current of torque force, and relevant its illustrates, is detailed later.Above-mentioned current distribution unit 2-2 shares control (Current Sharing Control, CSC) in order to carry out electric current, and it converts speed difference to reference current value, then utilizes CSC to be given by electric current and enters phase current and go out phase current.
The pulse bandwidth of above-mentioned Fig. 2 controls current unit 2-4, be receive above-mentioned process go out phase current and above-mentioned process enter phase current, to produce a drive singal, such as: in the present embodiment, drive singal is current drive signal.Above-mentioned asymmetrical half-bridge frequency converter is in order to control the operation of motor 2-6 according to drive singal.
Fig. 3 illustrates the built-in function block schematic diagram of the angle control unit 2-3 into one embodiment of the invention.In Fig. 3, angle control unit 2-3 comprises differential seat angle arithmetic element 3-1 and electric current end detector 3-2.Above-mentioned differential seat angle arithmetic element 3-1 is in order to going out the angle of phase current end (Current Tail) and the second predetermined angle θ
2carry out a computing, to obtain a differential seat angle, this mechanism is mainly in order to limit away the angle (θ of the electric current end of the demagnetizing current of phase current
q) be no more than the second predetermined angle (θ
2).
Fig. 4 illustrates the flow chart of the control method into one embodiment of the invention.And Fig. 5 illustrates the electric current of one embodiment of the invention to inductance value schematic diagram.About the explanation of Fig. 4, respect please with reference to Fig. 2 and Fig. 5.In step S405, utilize feedback current acquisition unit 2-7 obtain away phase current and enter phase current, phase current of wherein going out is the real-time current value of being close to two-phase with entering phase current.
In the step S410 of Fig. 4, the angle information that the angle control unit 2-3 of control unit 2-0 coordinates the encoder of feedback current acquisition unit 2-7 to provide is to judge that whether angle that above-mentioned biphase current is relevant is at the first predetermined angle θ
1(inductance is about to the corner risen) and the second predetermined angle θ
2between (inductance arrives the corner of maximum).
Please refer to Fig. 5, in the present embodiment, control unit 2-0.Process away phase current and enter phase current, making the exciting curent 5-6 entering phase current start from the first predetermined angle θ
1(inductance is about to the corner risen) and the second predetermined angle θ
2the corner of maximum (inductance arrive), the electric current end 5-8 of phase current of going out is not later than the second predetermined angle θ
2terminate afterwards, and when the exciting curent 5-6 entering phase current ends at away the electric current end 5-8 of phase current.In addition, the exciting curent 5-8 entering phase current is controlled in the first predetermined angle θ
1or shift to an earlier date lead angle, before the demagnetizing current 5-8 making the exciting curent 5-6 entering phase current start from away phase current starts to produce.In addition, go out phase current 5-8 exciting curent by control start from the first predetermined angle θ
1or before.
In other words (the present embodiment with reference to figure 5), phase current of going out comprises exciting curent 5-3, determines electric current 5-4 and demagnetizing current 5-8, wherein goes out the opening angle 5-2 (Turn on angle) of phase current namely at the first predetermined angle θ
1, that is go out the exciting curent of phase current and rise and make in the first predetermined angle θ
1, determine electric current 5-4 and can maintain and determine torque.In Fig. 5, control point 5-9 is the second predetermined angle θ
2, above-mentioned control point 5-9 is in order to limit away the electric current end θ of phase current
qbe no more than θ
2.Overlapping intervals 5-10 is that the Current Control that two-phase overlaps makes to produce fixed current (torque), and independently to produce the electric current of torque equal with certain phase.In addition, enter phase current and comprise exciting curent 5-6, determine electric current 5-5 and demagnetizing current 5-7, the opening angle wherein entering phase current is controlled at the first predetermined angle θ by angle control unit 2-3
1with the second predetermined angle θ
2between, that is the exciting curent 5-6 entering phase current is transferred to the corresponding corner of demagnetizing current 5-8 by the electric current 5-4 that determines that control starts from away phase current, namely makes the exciting curent 5-6 entering phase current start from the first predetermined angle θ
1with the second predetermined angle θ
2between.In addition, the exciting curent 5-6 that angle control unit 2-3 controls to enter phase current ends at away the electric current end θ of phase current
qwhen.
In the present embodiment Fig. 5, go out the corresponding angle θ of electric current end of phase current
qend at the second predetermined angle θ
2before.In the present embodiment, angle control unit 2-3 utilize away phase current whether to be less than corresponding angle θ that zero judges away the electric current end of phase current
q.Then, the corresponding angle θ of the electric current end of phase current is recycled away
qwith the second predetermined angle θ
2between differential seat angle judge away the corresponding angle θ of the electric current end of phase current
qwhether can more than the second predetermined angle θ
2if go out the corresponding angle θ of electric current end of phase current
qcan more than the second predetermined angle θ
2, then the shorting advance angle that angle control unit 2-3 can control to enter phase current makes away the corresponding angle θ of the electric current end of phase current
qbe no more than (ending at) the second predetermined angle θ
2, that is angle control unit 2-3 makes away the electric current end of phase current be not later than the second predetermined angle θ
2terminate afterwards.
In Fig. 4 step S415, what effective current estimation unit 2-1 utilized feedback current acquisition unit 2-7 to provide go out phase current, enter phase current and angle information to calculate the effective current value of above-mentioned biphase current summation, its formula can with reference to as follows:
In Fig. 4 step S420, the predetermined current that current distribution unit 2-2 provides according to above-mentioned PI controller 2-9 and above-mentioned effective current estimate total effective current that unit 2-1 provides to carry out computing, to produce a total reference current.Then, in step S425, the maximum reference current of current distribution unit 2-2 priority allocation enters phase current, and then assigned references electric current goes out phase current, makes
And Fig. 6 illustrates the electric current of another embodiment of the present invention to inductance value schematic diagram.Fig. 6 and Fig. 5 is similar, and difference is, Fig. 6 is hypothesis two kinds of conditions: 1. work as t
overlap>=t
r>=t
ftime go out phase current scarcely can more than the second preset angle θ
2, the beginning entering phase current necessarily drops on the first preset angle θ
1, make to optimize electric current like this and distribute control; Second works as t
overlap<t
r≤ t
ftime, because go out the electric current of phase probably more than the second preset angle θ
2, make away the end-of-pipe control of phase current at the second preset angle θ so must control to enter phase current
2on.That is, angle control unit 2-3 judges away the corresponding angle θ of the electric current end of phase current
qcan more than the second predetermined angle θ
2, therefore angle control unit 2-3 can control to enter the corresponding angle θ that phase current makes away the electric current end of phase current
qend at the second predetermined angle θ
2now, the exciting curent 6-6 that angle control unit 2-3 also controls to enter phase current is controlled lead angle in advance, before the demagnetizing current making the exciting curent entering phase current start from away phase current starts to produce, and this exciting curent controlling away phase current is started from the first predetermined angle θ by control
1before.
In sum, switching magneti-resistance controller for motor of the present invention and control method thereof, based on the consideration of copper loss, control angle strategy adds some restrictive conditions, makes the generation reducing inessential copper loss, to improve the efficiency of switching magneti-resistance motor.In addition, in excitatory phase, the object at shorting advance angle is in order to excitatory when not reacting electromotive force, makes electric current to increase rapidly, but this controls shorting advance angle can cause the copper loss additionally not producing torque.
The foregoing is only preferred embodiment of the present invention, and be not used to limit claims of the present invention; Under all other does not depart from disclosed spirit, the equivalence that completes changes or modifies, and all should be included in claims.
Claims (10)
1. a switching magneti-resistance controller for motor, couples a motor, and this switching magneti-resistance controller for motor, is characterized by, comprise:
One feedback current acquisition unit, couples this motor, goes out phase current and enter phase current to obtain one;
One control unit, couple this feedback current acquisition unit, with process this go out phase current and this enter phase current, this exciting curent entering phase current is made to start between one first corner and one second corner, this electric current end of going out phase current terminates after being not later than this second corner, and this this exciting curent entering phase current end at this go out phase current this electric current end when;
One pulse bandwidth controls current unit, couples this control unit, with receive above-mentioned process go out phase current and above-mentioned process enter phase current, to produce a drive singal; And
One asymmetrical half-bridge frequency converter, couples this pulse bandwidth and controls current unit and this motor, to control the operation of this motor according to this drive singal.
2. switching magneti-resistance controller for motor as claimed in claim 1, it is characterized by, if this control unit is detected after this this electric current end of going out phase current ends at this second corner, then this control unit controls this and goes out phase current and make this this electric current end of going out phase current be no more than this second corner.
3. switching magneti-resistance controller for motor as claimed in claim 2, it is characterized by, this control device controls this this exciting curent entering phase current and shifts to an earlier date lead angle, make this this exciting curent entering phase current start from this demagnetizing current of going out phase current start produce before.
4. switching magneti-resistance controller for motor as claimed in claim 2, is characterized by, and this control device controls this this exciting curent of going out phase current and starts from this first corner or before.
5. switching magneti-resistance controller for motor as claimed in claim 1, it is characterized by, this this exciting curent entering phase current starts from this certain electric current of going out phase current and transfers the corresponding corner of a demagnetizing current to.
6. a control method for switching magneti-resistance controller for motor, is characterized by, and comprises:
A () obtains one and goes out phase current and and enter phase current;
(b) judge this go out phase current and this enter the angle corresponding to correlated current composition of phase current, to provide an Angle ambiguity result;
(c) according to this go out phase current and this enter phase current and calculate a total effective current; And
D () carries out an electric current allocation process according to this total effective current, a speed loop correlated current and this Angle ambiguity result, this exciting curent entering phase current is made to start between one first corner and one second corner, this electric current end of going out phase current terminates after being not later than this second corner, and this this exciting curent entering phase current end at this go out phase current this electric current end when.
7. control method as claimed in claim 1, it is characterized by, in step (b) with step (d), after this this electric current end of going out phase current ends at this second corner if detect, then adjust this and enter phase current and make this this electric current end of going out phase current be no more than this second corner by control.
8. control method as claimed in claim 7, it is characterized by, in step (d), wherein this this exciting curent entering phase current is controlled this first turn of pin or in advance lead angle, this this exciting curent entering phase current is started from before this demagnetizing current of going out phase current starts to produce.
9. control method as claimed in claim 7, is characterized by, and in step (d), this this exciting curent of going out phase current is started from this first corner or before by control.
10. control method as claimed in claim 6, it is characterized by, in step (d), this this exciting curent entering phase current is started from this certain electric current of going out phase current by control and transfers the corresponding corner of a demagnetizing current to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103104857A TWI514747B (en) | 2014-02-14 | 2014-02-14 | Switched reluctance motor controller and control method thereof |
| TW103104857 | 2014-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104852659A true CN104852659A (en) | 2015-08-19 |
| CN104852659B CN104852659B (en) | 2017-09-05 |
Family
ID=53852056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410379301.XA Expired - Fee Related CN104852659B (en) | 2014-02-14 | 2014-08-04 | Switching reluctance motor control device and control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104852659B (en) |
| TW (1) | TWI514747B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5204604A (en) * | 1992-02-28 | 1993-04-20 | General Electric Company | Linearizer for a switched reluctance generator |
| CN101557189A (en) * | 2009-05-15 | 2009-10-14 | 南京航空航天大学 | Method for fixing turn-on angle and optimizing turn-off angle of switched reluctance generator |
| CN101917151A (en) * | 2010-07-28 | 2010-12-15 | 南京航空航天大学 | Method for controlling position-less sensor of switched reluctance motor |
| CN102751921A (en) * | 2012-05-29 | 2012-10-24 | 太原理工大学 | Method for controlling winding current waveforms of switched reluctance motor |
| KR101311377B1 (en) * | 2012-05-31 | 2013-09-25 | 경성대학교 산학협력단 | Sensorless drive system of srm based on simple flux linkages method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5446359A (en) * | 1993-12-29 | 1995-08-29 | Emerson Electric Co. | Current decay control in switched reluctance motor |
| US5461295A (en) * | 1994-01-28 | 1995-10-24 | Emerson Electric Co. | Noise reduction in a switched reluctance motor by current profile manipulation |
| TW588506B (en) * | 2002-12-26 | 2004-05-21 | Ind Tech Res Inst | Method for depressing over-speed in transient state for switching reluctance motor |
| TWI246822B (en) * | 2004-03-15 | 2006-01-01 | Tian-Hua Liu | A sensorless technique for switched reluctance motors and DC brushless motors |
| TWM385167U (en) * | 2009-12-10 | 2010-07-21 | Shun-Yuan Wang | Switching type magnetic resistance motor control driving device with current improvement feature |
| TWI533591B (en) * | 2012-03-16 | 2016-05-11 | 林正凱 | A predictive current control method for interior permanent magnet synchronous motors and synchronous reluctance motors based on extended back-emf estimation |
-
2014
- 2014-02-14 TW TW103104857A patent/TWI514747B/en not_active IP Right Cessation
- 2014-08-04 CN CN201410379301.XA patent/CN104852659B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5204604A (en) * | 1992-02-28 | 1993-04-20 | General Electric Company | Linearizer for a switched reluctance generator |
| CN101557189A (en) * | 2009-05-15 | 2009-10-14 | 南京航空航天大学 | Method for fixing turn-on angle and optimizing turn-off angle of switched reluctance generator |
| CN101917151A (en) * | 2010-07-28 | 2010-12-15 | 南京航空航天大学 | Method for controlling position-less sensor of switched reluctance motor |
| CN102751921A (en) * | 2012-05-29 | 2012-10-24 | 太原理工大学 | Method for controlling winding current waveforms of switched reluctance motor |
| KR101311377B1 (en) * | 2012-05-31 | 2013-09-25 | 경성대학교 산학협력단 | Sensorless drive system of srm based on simple flux linkages method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104852659B (en) | 2017-09-05 |
| TWI514747B (en) | 2015-12-21 |
| TW201532378A (en) | 2015-08-16 |
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