CN202395542U - Multi-winding doubly salient generator and output conversion and control device - Google Patents
Multi-winding doubly salient generator and output conversion and control device Download PDFInfo
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- CN202395542U CN202395542U CN2011204795086U CN201120479508U CN202395542U CN 202395542 U CN202395542 U CN 202395542U CN 2011204795086 U CN2011204795086 U CN 2011204795086U CN 201120479508 U CN201120479508 U CN 201120479508U CN 202395542 U CN202395542 U CN 202395542U
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Abstract
The utility model discloses a multi-winding doubly salient generator and an output conversion and control device, relating to an aviation generator. A three-phase 12/8-pole single-winding doubly salient generator is adopted, four sets of phase-A, phase-B and phase-C armature windings are wound on a stator slot, the two sets of low-voltage three-phase windings are al1, bl1 and cl1, as well as al2, bl2 and cl2, and the two sets of high-voltage three-phase windings are ah1, bh1 and ch1, as well as ah2, bh2 and ch2, wherein the al1, the al2, the ah1 and the ah2 are placed in the same slot, the bl1, the bl2, the bh1 and the bh2 are placed in the same slot, the cl1, the cl2, the ch1 and the ch2 are placed in the same slot, and each set of windings composes an independent generating channel with the own power conversion device; and the outputs of 400 HZ medium-frequency alternating-current power supplies of 28.5 V, 28.5 V/57 V, 0-70 V, and 115 V/200 V, as well as the output of a high-voltage direct-current power supply of 270 V are realized.
Description
Technical field
The utility model relates to aviation ground safeguard technical field, specifically is a kind of many windings double-salient-pole generator and output transform and control device, is used for electricity startup of aircraft and aircraft ground and ground energising inspection and ensures power supply.
Background technology
The electric excitation dual protrusion pole generator is on the doubly salient permanent magnet motor basis, and the permanent magnet that has replaced original motor with excitation winding is as excitation mechanism.The structure of motor and manufacturing process are all very simple, and reliability is high, and cost is low, is specially adapted to high-speed cruising.This motor is during as motor, have direct current machine operational efficiency height, good speed adjustment features, can conveniently realize advantages such as four quadrant running; During as generator operation, do not need position transducer, come control output voltage through the size of regulating exciting current.These advantages of double salient-pole electric machine have a good application prospect it.What at present aero-ground power adopted is that brush AC and DC generator is arranged, the aero-ground power capacity that causes is little, volume big, function singleness and fragile, cost is high.Many windings double-salient-pole generator output transform and control device are in simplex winding electric excitation dual protrusion pole generator, to use many winding technology to realize multi-functional aero-ground power.Through this many windings brushless generator technical research; Close in separate unit generator and converter groups and to realize 28.5V, 28.5V/57V, 0-70V, 270V high-voltage DC power supply, 115V/200V; 400Hz three-phase intermediate frequency and 220V/380V, the 50Hz three-phase main-frequency AC power multi-functional aero-ground power that becomes one.Through studying brushless technology, can improve generator output capacity, reliability and reduce volume, satisfy aircraft development to the power supply capacity requirement, the requirement big to power supply requirement of particularly following four generation machines improves the ability of accompanying support simultaneously; Study many windings technology, not only can satisfy my all aircrafts of army's active service and four generation machine to the multi-functional requirement of aero-ground power, also can improve the fault-tolerance of aero-ground power.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art; The utility model provides a kind of many windings double-salient-pole generator and output transform and control device; Satisfy current aircraft floor and start power supply and the required high-power AC and DC power supply requirement of aircraft floor inspection; Can realize 28.5V, 28.5V/57V, 0-70V, 270V high-voltage DC power supply, 115V/200V, 400HZ midfrequent ac power supply and 220V/380V, the multi-functional aero-ground power of 50Hz three-phase main-frequency AC power.
The utility model is realized with following technical scheme: a kind of many windings double-salient-pole generator and output transform and control device; Adopt three-phase 12/8 utmost point simplex winding double-salient-pole generator, on stator slot altogether around A, B, C three-phase quadruplet armature winding, al1; Bl1; Cl1 and al2, bl2, cl2 are two cover low pressure, three phase windings; Ah1, bh1, ch1 and ah2; Bh2, ch2 are two cover high pressure, three phase windings, wherein al1, al2, ah1 and ah2; Bl1, bl2, bh1 and bh2, cl1, cl2, ch1 and ch2 place with groove respectively, and each overlaps winding and constitutes independently power channel with oneself power conversion unit respectively; Described power conversion unit comprises and al1; Bl1; Cl1 and al2, bl2, the lower pressure transducer that cl2 two cover low pressure three phase windings connect; Be connected back output generation two-way independence 28.5V/800A DC power supply with two groups of lower pressure transducer through two cover low pressure windings, be connected the DC power supply of back series connection output 57V DC power supply or 0～70V variation through two cover low pressure windings with two groups of lower pressure transducer; With ah1; Bh1; Ch1 and ah2; Bh2, the high tension transformer that ch2 two cover high pressure three phase windings connect is realized output 360V high-voltage DC power supply or 270V high-voltage DC power supplies or is realized output 720V high-voltage DC power supplies through two cover high pressure windings and two groups of high tension transformers series connection through two cover high pressure windings and two groups of high tension transformer parallel connections; Output is connected DSP voltage regulator system respectively to lower pressure transducer with high tension transformer.
The beneficial effect of the utility model is: improve generator output capacity and reliability; Reduce volume; Satisfy aircraft development to the power supply capacity requirement; The requirement big to power supply requirement of particularly following four generation machines improves the ability of combined operation, " non-war " uses of force, multimachine kind and accompanying support simultaneously; Satisfy my all aircrafts of army's active service and four generation machine to the multi-functional requirement of aero-ground power, also can improve the fault-tolerance of aero-ground power.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the double-salient-pole generator structure chart;
Fig. 2 is doubly-salient brushless DC generator Distribution of Magnetic Field figure;
Fig. 3 low pressure winding is cloudy rectification circuit altogether;
Fig. 4 low pressure winding is positive rectification circuit altogether;
Fig. 5 boost conversion control device circuit diagram;
14 grades of multipleization CPF of Fig. 6 0-70V camber line control chart;
Fig. 7 is 115/200,400Hz high pressure winding parallel connection bridge rectifier figure (a)
Fig. 8 is 115/200,400Hz high pressure winding parallel connection bridge rectifier figure (b);
Fig. 9 is 220/380,50Hz high pressure windings in series bridge rectifier figure;
Figure 10 is a dual buck half bridge inverter;
Figure 11 is 400HZ three phase inverter circuit theory diagrams;
Figure 12 is pressure regulation field circuit figure.
Among the figure: 1, high pressure winding ah2,2, high pressure winding ah1,3, low pressure winding al2,4, low pressure winding al1,5, stator slot, 6, stator, 7, rotor, 8, excitation winding, 9, armature winding.
Embodiment
Start power supply and the required high-power AC and DC power supply requirement of aircraft floor inspection in order to satisfy current aircraft floor; Require generator to provide a kind of and can realize 28.5V, 28.5V/57V, 0-70V, 270V high-voltage DC power supply, 115V/200V; 400HZ three-phase intermediate frequency and 220V/380V, the multi-functional aero-ground power of 50HZ three-phase main-frequency AC power.To achieve these goals, need to realize: 1) electricity generation system: among DSEG, study in many windings technology the composition of high pressure winding and structure, the composition of low pressure winding and structure from following three parts.2) electric power system: the connection and the power converting circuit of high and low pressure winding output circuit.3) control system: use DSP and realize 28.5V, 28.5V/57V, 0-70V, 270V high-voltage DC power supply, 115V/200V, 400HZ three-phase midfrequent ac and 220V/380V, the control of 50HZ three-phase main-frequency AC power.The utility model comprises following three parts: many windings double-salient-pole generator, power converting circuit and DSP voltage-regulating system.
1, many windings double-salient-pole generator
In order in Multifunction aero-ground power system, to realize the straight power supply output function of above-mentioned multiple friendship simultaneously, satisfy multiple aircraft requirement, on the basis of three phase rectifier analytical method that makes full use of existing maturation and three phase rectifier module; Many windings double-salient-pole generator and output transform and control device adopt three-phase 12/8 utmost point simplex winding double-salient-pole generator, and on former simplex winding stator magnetic circuit structure basis of invariable, on stator slot 5 altogether around A; B, C three-phase quadruplet armature winding; Al1 4, bl1, cl1 and al2 3; Bl2, cl2 are two cover low pressure, three phase windings; Ah1 2, and bh1, ch1 and ah2 1, bh2, ch2 are two cover high pressure, three phase windings, and be as shown in Figure 1; Wherein al1 4, al2 3, ah1 2 and ah2 1, bl1, bl2, bh1 and bh2, cl1, cl2, ch1 and ch2 place with groove respectively, and al1 4, al2 3, ah1 2 and ah2 1 draw in the drawings, and all the other a few cover windings do not draw.Each overlaps winding and constitutes independently power channel with oneself power conversion unit respectively, thereby constitutes the multi-winding generator systems at a shared rotor 7, and the structure of stator 6 is constant.Fig. 1 is the extremely sectional view of many windings doubly-salient brushless DC generator of three-phase 12/8, and excitation winding 8 strides across 3 teeth and is installed in 4 vats, and the stator polar arc is 1/2 of a stator tooth distance; Be π/12 mechanical angles; The overlapping angle sum that can guarantee a utmost point lower rotor part tooth and stator tooth like this is constantly equal to the rotor polar arc, and irrelevant with rotor-position, thereby making synthetic air-gap permeance is a constant; The magnetic linkage that so not only guarantees motor excitation winding institute linkage will not change with rotor position angle θ; Excitation winding can not produce induced potential, and motor is static does not have location torque when adding excitation, the mutual inductance magnetic linkage of arbitrary in addition phase stator winding institute interlinkage only with this mutually magnetic conductance be directly proportional.The rotor polar arc requires more than or equal to the stator polar arc, to guarantee the electric current switching-over.Owing to do not have winding on the rotor; Brushless and commutator; And generating do not need position transducer, power inverter and controller during work yet, it is simple in structure, reliability is high, the life-span is long, easy to maintenance, manufacturing process is also very simple, electrical machinery life is only decided by bearing life.Three-phase 12/8 is many windings doubly-salient brushless DC generator basic functional principle extremely: when excitation winding is connected with constant current; It is always closed along the minimum path of magnetic resistance that its magnetic flux is followed " magnetic resistance minimum principle "-magnetic flux; The magnetic flux that in motor, produces will pass through stator yoke portion, stator teeth, air gap, rotor tooth portion, rotor yoke formation closed magnetic circuit, and will be as shown in Figure 2.When adding mechanical force transmission rotor when making it by the rotation of a certain direction, because the magnetic linkage of 9 linkages of every phase armature winding changes, then winding inductance is with induced electromotive force.
2, power converting circuit
The DC power supply of system: produce two-way independence 28.5V/800A DC power supply by low pressure winding and lower pressure transducer output, then the output of two-way low pressure through also, tandem compound forms 28.5V and the 28.5/57V demand with the DC power supply that satisfies aircraft.
System's AC power: produce by high pressure winding, high tension transformer and inverter.According to the characteristic requirements of dual buck half bridge inverter, when inverter output 115/200V, 400HZ three-phase medium frequency alternating current, the input of inverter needs the voltage of 360V.
(1) many windings double-salient-pole generator lower pressure transducer design
Because low pressure winding and high pressure winding are in same magnetic field; The magnetic flux that each circle coil of high and low pressure winding flows through is identical; In order to satisfy the voltage output characteristics of high pressure winding and low pressure winding; The lower pressure transducer of low pressure winding adopts the half-bridge rectification circuit, and with the boost conversion control device that half-bridge rectification circuit circuit is connected, described half-bridge power converter is the common cathode rectification circuit or is total to the anode rectification circuit.The independent low pressure winding construction of two covers is connected shown in Fig. 3 and 4 with the half-bridge rectification circuit, and two cover windings constitute independently power channel with separately lower pressure transducer respectively, thereby independently 28.5V or 28.5V/57V pair are organized in realization.
The boost conversion control device is as shown in Figure 5; When No. 6 control lines " come negative electricity ";
work and make
,
work; The l of conversion equipment, 3 and 2, No. 3 output output 28.5V DC power supplys; This power supply is supplied with by generator
,
; The storage battery output switch if close then is
,
parallelly connected supply with GB; After No. 4 control lines " come positive electricity ";
work and make
and quit work,
quit work,
work; Keep the 28.5V power supply as a result between No. 1,3, the output wiring terminal; 2, convert the 57V power supply of G
, G
series-fed between No. 3 into, HT pilot HL
is bright.
0-70V power control: when the starting aircraft; After the three-phase low-voltage alternating-current electric current I process L1 L2 L3 current transformer conversion of rectifier input; Become d. c. voltage signal through rectification circuit, again through C1, C2 filtering, from analog to digital converter end input dsp system.That cpu chip adopts is TMS320LF2407A, and EPROM is built-in, storage 70V starting curve, assembler language programming.After the starting current signal is handled through CPU,, send into digital to analog converter (D/A), export after the formation analog signal from the 8 bit data bus output of ADC0809.When aircraft starter generator produced back-emf, starting current began to descend from the B point.Imagination uses a 70V adjuster to compare as benchmark with B point electric current.When starting current reduced 50A, automatic adjusting TRT voltage was 18.9V; When starting current accumulative total reduced by 3 * 50A, the TRT voltage of adjusting was 21.6V; According to the odd of 50A by that analogy, reduce by 27 * 50A until accumulative total, the V-A characteristic that makes TRT is with small stepped according to above-mentioned curve motion.When running to the F point, totally reduce by 28 * 50A, the 70V adjuster measures TRT voltage when 34V-35V, should be regarded as final setting value, remain unchanged, until start successfully, till excitation source broken off by aircraft, like Fig. 6.
(2) many windings double-salient-pole generator high tension transformer design
Requirement for the direct voltage that satisfies aircraft 115/200V, 400Hz midfrequent ac power supply and 220/380V, 50HZ industrial-frequency alternating current source converter; The high pressure winding should be for being inversion three-phase 115V/200V through the voltage of high pressure variator rectification output; 400HZ midfrequent ac power supply provides the 360V of direct current input and is inversion 220V/380V, and 50HZ three-phase main-frequency AC power provides direct current input 720V.Therefore, high pressure winding rectification output can realize 360V and 720V high-voltage DC power supply through high pressure variator parallel connection and serial connection.Described high tension transformer adopts full-bridge power converter, with the three-phase inverter of full-bridge power converter connection; The exportable 115V/200V of inverter, 400HZ and 220V/380V, two kinds of three-phase voltages of 50HZ.The independent high pressure winding of two covers is connected like Fig. 7, shown in 8 with full-bridge power converter.
The design of three-phase inverter, the three-phase alternating current that comes down to many windings double-salient-pole generator high pressure winding output are carried out inversion after through the high tension transformer rectification again, thereby obtain stable three-phase alternating voltage.Three-phase inverter is exported two kinds of three-phase voltages on request, is respectively 115V/200V, 400HZ and 220V/380V, 50HZ.
As shown in Figure 9, three-phase inverter adopts by two BUCK circuit forms two step-down semi-bridge type inverters, owing to the existence of circuit inductance L1, L2, has overcome the straight-through problem of conventional bridge inverter bridge, Dead Time need be set.We have adopted the mode of three single-phase inverter combinations in order to realize three-phase inverter.This circuit structure not only has extremely strong band unbalanced load ability, and whenever can also control respectively mutually, and control is simple, realizes modular construction easily.
Shown in figure 10, adopt the main circuit of three two box-like three-phase inverters of BUCK circuit bank, the three-phase alternating current of two groups of high pressure windings outputs of double salient-pole electric machine becomes DC power supply behind over commutation, carry out inversion again, thereby obtain stable three-phase alternating voltage.In order to obtain two kinds of stable three-phase alternating voltages; Then require the excitation winding electric current of control system DSP control generator, the way of output and the inverter control mode of converter: when output voltage is 115V/200V, 400Hz; VD should be 360V, two-way rectification output-parallel; When output voltage is 220V/380V, 50Hz, VD should be 720V, two-way rectification output series connection, and the power output under two kinds of situation all is 50KW.
3, DSP voltage regulator system
(1) field circuit
DSP voltage regulator system comprises dsp controller and the field circuit that is connected with many windings double-salient-pole generator.
Described field circuit comprises excitation winding, IGBT pipe T1, T2 and diode D1, D2; One end of excitation winding is connected with the source electrode of IGBT pipe T1 and the anode of diode D2; The other end is connected with the drain electrode of IGBT pipe T2 and the negative electrode of diode D1; The drain electrode of the anode of diode D1 and IGBT pipe T1 connects the negative terminal of power supply, and the source electrode of the negative electrode of diode D2 and IGBT pipe T2 connects the anode of power supply.Field circuit mainly is responsible for exciting current being provided for many winding electric magnetic-type double salient-pole electric machine excitation winding; Realize control through exciting power pipe conducting clocklike in the field circuit and shutoff to the motor excitation electric current; Realizing the control to the motor output voltage with this, when fault, can turn-off the exciting power pipe in addition and realize the fault demagnetization, is the major control part of whole generating system; Be referred to as regulator circuit again, physical circuit is shown in figure 11.
When generator system was in normal operating conditions, T2 kept continuing conducting, the conducting of T1 and the pwm signal control of turn-offing by the generation of excitation control Driver Circuit.During the T1 conducting, exciting current if, flow into, get back to “ – through T2, excitation winding and T1 by+end " end; When T1 turn-offs, excitation electricity D2, T2 afterflow.When the load of system changes (system that mainly is meant prominent unload load break down suddenly with certain power channel); Output voltage can increase suddenly, and in order to let output voltage in the short as far as possible time, recover normal, only the afterflow with excitation winding self is not enough; Must further accelerate the decrease speed of exciting current; So turn-off T2, this moment, exciting current if was through excitation winding, D2 ,+Duan 、 – end, D1 afterflow, and the direction of the direction of exciting voltage and exciting current if is just in time opposite; Be equivalent to add a reverse voltage, have one to be beneficial to the speed of releasing of accelerating the excitation winding internal energy at the excitation winding two ends.Wherein ,+、 – are respectively exciting voltage positive-negative input end (linking to each other with DC power supply or exciter output), and T1 is the exciting power pipe, and T2 is contrary magnetic power pipe, and D1 and D2 are fly-wheel diode.
(2) voltage regulator control hardware circuit
16 fixed-point processor TMS320LF2407A of TI company are the monolithic dsp controllers of using optimal design specially for Electric Machine Control.The advanced Industry Control Application that is integrated into of disposal ability that this chip is remarkable and peripheral components provides more outstanding design.DSP has high speed signal to be handled and digital control necessary architecture characteristics, and provides Electric Machine Control necessary ancillary equipment, has simplified the design of control circuit, has improved the ratio of performance to price and the operational reliability of system.Therefore, native system adopts the master cpu of the DSP of TMS320LF2407A model as digital voltage regulator.
(3) voltage regulator control circuit software design
As far as the numerical control system of multi-functional aero-ground power generator control, hardware is the basis of system, and software is core.Native system adopts the assembler language of dsp controller TMS320LF2497A chip support to carry out writing of software.The function that the electricity generation system Control Software mainly realizes has:
The realization of output voltage PWM modulation algorithm;
Sampling, detection exciting current and two output voltage, output current signal;
Exciting current overcurrent protection, output voltage are crossed, under-voltage protection, the load current overcurrent protection;
The switching of high and low pressure output two-way voltage-regulation.
Claims (7)
1. winding double-salient-pole generator and output transform and control device more than one kind is characterized in that: adopt three-phase 12/8 utmost point simplex winding double-salient-pole generator, on stator slot altogether around A, B, C three-phase quadruplet armature winding; Al1, bl1, cl1 and al2; Bl2, cl2 are two cover low pressure, three phase windings; Ah1, bh1, ch1 and ah2; Bh2, ch2 are two cover high pressure, three phase windings, wherein al1, al2, ah1 and ah2; Bl1, bl2, bh1 and bh2, cl1, cl2, ch1 and ch2 place with groove respectively, and each overlaps winding and constitutes independently power channel with oneself power conversion unit respectively; Described power conversion unit comprises and al1; Bl1; Cl1 and al2, bl2, the lower pressure transducer that cl2 two cover low pressure three phase windings connect; Be connected back output generation two-way independence 28.5V/800A DC power supply with two groups of lower pressure transducer through two cover low pressure windings, be connected the DC power supply of back series connection output 57V DC power supply or 0～70V variation through two cover low pressure windings with two groups of lower pressure transducer; With ah1; Bh1; Ch1 and ah2; Bh2, the high tension transformer that ch2 two cover high pressure three phase windings connect is realized output 360V high-voltage DC power supply or 270V high-voltage DC power supplies or is realized output 720V high-voltage DC power supplies through two cover high pressure windings and two groups of high tension transformers series connection through two cover high pressure windings and two groups of high tension transformer parallel connections; Output is connected DSP voltage regulator system respectively to lower pressure transducer with high tension transformer.
2. a kind of many windings double-salient-pole generator according to claim 1 and output transform and control device is characterized in that: described lower pressure transducer adopts half-bridge power converter, the boost conversion control device that is connected with half-bridge rectification circuit circuit.
3. a kind of many windings double-salient-pole generator according to claim 2 and output transform and control device is characterized in that: described half-bridge power converter is the common cathode rectification circuit or is total to the anode rectification circuit.
4. a kind of many windings double-salient-pole generator according to claim 1 and output transform and control device is characterized in that: described high tension transformer adopts full-bridge power converter, the three-phase inverter that is connected with full-bridge power converter; The exportable 115V/200V of inverter, 400HZ three-phase voltage of intermediate frequency or output 220V/380V, 50HZ three-phase main-frequency voltage.
5. a kind of many windings double-salient-pole generator according to claim 4 and output transform and control device is characterized in that: described three-phase inverter adopts the two step-down semi-bridge type inverters of the three-phase of being made up of two BUCK circuit.
6. according to claim 1～5 each described a kind of many windings double-salient-pole generator and output transform and control device, the conversion of the output voltage of described many windings double-salient-pole generator and converter realizes by dsp controller with control.
7. a kind of many windings double-salient-pole generator according to claim 6 and output transform and control device; It is characterized in that: described field circuit comprises excitation winding, IGBT pipe T1, T2 and diode D1, D2; One end of excitation winding is connected with the source electrode of IGBT pipe T1 and the anode of diode D2; The other end is connected with the drain electrode of IGBT pipe T2 and the negative electrode of diode D1; The drain electrode of the anode of diode D1 and IGBT pipe T1 connects the negative terminal of power supply, and the source electrode of the negative electrode of diode D2 and IGBT pipe T2 connects the anode of power supply.
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| CN2011204795086U CN202395542U (en) | 2011-11-28 | 2011-11-28 | Multi-winding doubly salient generator and output conversion and control device |
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| CN2011204795086U CN202395542U (en) | 2011-11-28 | 2011-11-28 | Multi-winding doubly salient generator and output conversion and control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497038A (en) * | 2011-11-28 | 2012-06-13 | 中国人民解放军徐州空军学院 | Multi-winding double-salient-pole generator and output transformation and control device |
| CN103795209A (en) * | 2012-10-29 | 2014-05-14 | 济南吉美乐电源技术有限公司 | Magnetic enhancing boosting double-excitation winding compound doubly salient electric-excitation generator |
| CN105705401A (en) * | 2013-11-08 | 2016-06-22 | 三菱电机株式会社 | Electric power steering control device and electric power steering control method |
| CN108964299A (en) * | 2018-06-12 | 2018-12-07 | 湖南大学 | A kind of novel straight drive n*3 phase permanent magnet synchronous wind generator |
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2011
- 2011-11-28 CN CN2011204795086U patent/CN202395542U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497038A (en) * | 2011-11-28 | 2012-06-13 | 中国人民解放军徐州空军学院 | Multi-winding double-salient-pole generator and output transformation and control device |
| CN103795209A (en) * | 2012-10-29 | 2014-05-14 | 济南吉美乐电源技术有限公司 | Magnetic enhancing boosting double-excitation winding compound doubly salient electric-excitation generator |
| CN103795209B (en) * | 2012-10-29 | 2016-09-28 | 济南吉美乐电源技术有限公司 | Increase the Fielding-winding doubly salient generator of the double Exciting Windings for Transverse Differential Protection compound excitation of magnetic boosting |
| CN105705401A (en) * | 2013-11-08 | 2016-06-22 | 三菱电机株式会社 | Electric power steering control device and electric power steering control method |
| CN105705401B (en) * | 2013-11-08 | 2018-05-29 | 三菱电机株式会社 | Motor-driven power steering control device and electric power-assisted steering control method |
| CN108964299A (en) * | 2018-06-12 | 2018-12-07 | 湖南大学 | A kind of novel straight drive n*3 phase permanent magnet synchronous wind generator |
| CN108964299B (en) * | 2018-06-12 | 2021-04-13 | 湖南大学 | Novel direct-drive n x 3 phase permanent magnet synchronous wind driven generator |
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