CN102882459A - Single-supply open-coil winding permanent magnet synchronous motor driving system for electric vehicles - Google Patents
Single-supply open-coil winding permanent magnet synchronous motor driving system for electric vehicles Download PDFInfo
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- CN102882459A CN102882459A CN2012104045341A CN201210404534A CN102882459A CN 102882459 A CN102882459 A CN 102882459A CN 2012104045341 A CN2012104045341 A CN 2012104045341A CN 201210404534 A CN201210404534 A CN 201210404534A CN 102882459 A CN102882459 A CN 102882459A
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Abstract
The invention relates to a single-supply open-coil winding permanent magnet synchronous motor driving system for electric vehicles. Six end leads of a stator winding of a three-phase permanent magnet synchronous motor are respectively connected to two standard two-level inverters. The driving system is supplied power by a direct-current power supply, and generates a rotary circular magnetic field by voltage space vector generated after space vector pulse width modulation. The driving system comprises a direct-current voltage source (1), a first inverter (2), a second inverter (3), a capacitor (4), an open-coil winding permanent magnet synchronous motor (5) and a common-mode voltage suppression vector (6). The first inverter is connected to one end of the winding of the permanent magnet synchronous motor, and the second inverter is connected to the other end of the winding. The drying system has advantages of a three-level inverter and can be applied to the field of driving of high-voltage high-power motors; while quantity of power devices is reduced. Owning to the compact design of the single supply, reliability of the driving system is improved. In addition, the effect of suppressing common-mode voltage can be achieved by effectively selecting the voltage space vectors on the basis of not increasing redundant switch devices.
Description
Technical field
The present invention relates to a kind of used for electric vehicle single supply and open the winding permanent magnet Synchromous machine drive system, can be applicable to the driving occasion of high-tension high-power, belong to the motor-driven technology.
Background technology
Magneto has the power density height, the advantage such as large of exerting oneself, and can satisfy the requirement of low speed high torque, high power density, but exist adapt to that the range of speeds is narrower, weak magnetic speed-up and Regulation Control hard problem.The various countries scholar has proposed various corrective measures to magneto for this reason, as improve permanent magnet motor structure and magnetic circuit, the schemes such as new type composite excitation structure and special control strategy are proposed, although these schemes reach the purpose of regulating electric machine air-gap field to a certain extent, but sacrificed the performance such as power density, efficient of magneto self, reduced the superiority that magneto is applied to electric automobile.Takahashi I proposes a kind of winding open-circuit type asynchronous machine first, and its two ends connects 2 cover inverters.Coordinate control by each inverter, the torque responsing speed that improves asynchronous machine separates with the connection neutral point of frequency band range with the threephase stator winding of permagnetic synchronous motor, make motor present out winding construction, each works alone mutually, effectively eliminate the impact between the winding, improve the reliability of motor self, than traditional two-level inverter, the twin inverter structure of opening winding can make the harmonic content of output voltage reduce under lower switching frequency, the output voltage grade improves, simultaneously, efficiently solve the problems such as used for electric vehicle magneto speed governing difficulty.Because the rotor magnetic circuit of magneto does not change, motor has the advantages such as high power density, high efficiency.Therefore, be necessary to propose a kind of drive system based on driving the winding type permagnetic synchronous motor.
Summary of the invention
Technical problem: the present invention is directed under on-vehicle battery capacity limit and the power switch electric current and voltage capabilities limits driving power grade low, have a common-mode voltage, and there are the problems such as pressure regulation difficulty in existing used for electric vehicle drive system, propose the used for electric vehicle single supply and open the drive system of winding permanent magnet synchronous machine, the problem such as solve that the Driven by inverter power density is low in the existing drive system, harmonic wave of output voltage is large and weak-magnetic speed-regulating is difficult, adopt the supply power mode of single supply, simultaneously the space vector modulation technique of twin inverter is improved, can be suppressed common-mode voltage.Content of the present invention is opened winding permanent magnet synchronous machine drives performance and is designed around the used for electric vehicle single supply.
Technical scheme: for solving the problems of the technologies described above, the invention provides a kind of used for electric vehicle single supply and open the winding permanent magnet Synchromous machine drive system, this drive system comprises direct voltage source, the first inverter, the second inverter, electric capacity, drives the winding permanent magnet synchronous machine, common-mode voltage suppresses vector; The first inverter, the second inverter, Capacitance parallel connection are connected on the two ends of direct voltage source, an end of opening three windings of winding permanent magnet synchronous machine is connected on respectively on three outputs of the first inverter, and the other end of opening three windings of winding permanent magnet synchronous machine is connected on respectively on three outputs of the second inverter; Common-mode voltage inhibition vector H, J, L, N, Q, S are modulated into 6 groups and drive signals, and correspondence connects 6 group transistor base stage control ends of the first inverter and the second inverter (3) respectively;
The permagnetic synchronous motor winding adopts leaves winding construction, and its six roots of sensation end lead-in wire is connected to respectively the two-level inverter of two standards, and drive system adopts the space vector of voltage that does not contain common-mode voltage only by a DC power supply during modulation.
It is the vehicle-mounted batteries of electric automobile of 300V that DC power supply adopts nominal voltage.
The first inverter and the second inverter all are voltage source inverters, and this twin inverter structure can realize the output of three level.
The twin inverter structure can produce 19 space vector of voltage in the space, have 7 space vectors not produce common-mode voltage, and they are positioned at locus H, J, L, N, Q, S and O place; The voltage vector that is positioned at H, J, L, N, Q, S and O place is modulated, but the establishment common-mode voltage.
Beneficial effect:
(1) the twin inverter structure is compared common diode clamp type, leap capacitor type three-level inverter topology structure, reduced the quantity of power device, there are not the problems such as mid-point voltage imbalance, be specially adapted to electric automobile and drive operating mode, reduced volume, weight and the manufacturing cost of drive unit.
(2) each device for power switching only needs to work under 1/2 maximum supply power voltage, has reduced switching loss, and the efficient of inverter is improved.
(3) traditional permagnetic synchronous motor threephase stator winding neutral point separately can work alone the motor winding, effectively eliminates the impact between the winding, improves the reliability of motor self.
(4) the twin inverter structure of opening winding can make the harmonic content of output voltage reduce under lower switching frequency, and the power output grade improves.
(5) adopt the powering mode of single supply, by the effective selection to space vector of voltage, can suppress common-mode voltage during modulation, make the electric automobile can smooth-ride.
(6) open winding permanent magnet and possess synchronously very strong fault-tolerant ability, again in conjunction with high performance control algolithm, realize running without interruption of electric automobile, avoid accident and disaster to occur.
(7) design of single supply, system configuration is compacter, and is easy to the optimum management of accumulator cell charging and discharging, is applicable to the dynamical system of electric automobile.
Description of drawings
Fig. 1 is structural representation of the present invention.
Wherein have: direct voltage source 1, the first inverter 2, the second inverter 3, electric capacity 4, drive winding permanent magnet synchronous machine 5, common-mode voltage and suppress vector 6.
Space vector of voltage distribution map when Fig. 2 is twin inverter power supply of the present invention.
Embodiment
The present invention will be described below with reference to accompanying drawings.
Used for electric vehicle single supply provided by the invention is opened the winding permanent magnet Synchromous machine drive system, with three-phase permanent magnet synchronous motor stator winding neutral point separately, six roots of sensation end lead-in wire is connected to respectively the voltage-type two-level inverter of two standards, system can realize the output of three level only by a DC power supply.System had not only inherited the advantage of three-level inverter but also had reduced the quantity of power device, can be applicable to the driving fields higher to power requirement such as electric automobile; The compact design of single supply has improved the reliability of device, has saved the space, not increasing on Redundanter schalter device or the control method basis only to effective selection of space voltage vector, just can play the effect of inhibition common-mode voltage simultaneously.This device comprises direct voltage source 1, the first inverter 2, the second inverter 3, electric capacity 4, drives winding body permagnetic synchronous motor 5, common-mode voltage suppresses vector 6.Described first drives the end that inverter 2 connects the permagnetic synchronous motor winding, and the second inverter 3 is connected to the winding other end.Advantage of the present invention is: compare with existing common-mode voltage inhibition technology, only need effectively select space voltage vector just can suppress torque ripple reduction to system's common-mode voltage; Compare with existing drive system of electric automobile, under on-vehicle battery capacity and power switch electric current and voltage capabilities limits, can improve system's gross power, be easy to the accumulator cell charging and discharging management optimization, improve runnability and the reliability of electric automobile.
The open electric automobile single supply of the present invention is opened the winding permanent magnet Synchromous machine drive system, take full advantage of the based on SVPWM principle, effective selection by space vector of voltage, realize the output of non-common mode voltage, solved the large shortcoming of traditional PMSM Drive System torque pulsation, the design of single supply makes the power system of electric automobile overall structure compacter simultaneously, reduces the volume of device.This device is furnished with two mutual symmetry inverters, by a direct voltage source power supply, compare with traditional single inverter drive system, improved the utilance of DC power supply, harmonic wave of output voltage content is low, two inverter cooperatings can be realized the output of three level, and can the harmonic content of output voltage be reduced.
Described the first inverter (2), the second inverter (3) all are two level PWM voltage source inverters of standard.
It is the vehicle-mounted batteries of electric automobile of 300V that described single supply (1) adopts nominal voltage.
Described used for electric vehicle single supply is opened the winding permanent magnet synchronous machine drives and is comprised the multiple drive forms such as vector control, direct torque control.
The present invention adopts space vector pulse width modulation, and whole system can obtain 26=64 on off state, but has redundancy in these 64 on off states, spatially can only produce 18 non-zero space vectors and 1 zero vector.May have common-mode voltage for independent each inverter, but by the stack of two inverter space vectors, the blended space vector can not produce common-mode voltage for whole system.Choose different space vectors, the common-mode voltage ((u of generation
A1o+ u
B1o+ u
C1o-u
A2o'-u
B2o'-u
C2o')/3) difference.For 19 space vector of voltage as shown in Figure 2, there are 7 space vectors not produce common-mode voltage, they are positioned at locus H, J, L, N, Q, S and O place.The voltage vector that is positioned at H, J, L, N, Q, S and O place is modulated, but the establishment common-mode voltage.
The above only is preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (4)
1. a used for electric vehicle single supply is opened the winding permanent magnet Synchromous machine drive system, it is characterized in that: this drive system comprises direct voltage source (1), the first inverter (2), the second inverter (3), electric capacity (4), drives winding permanent magnet synchronous machine (5), common-mode voltage suppresses vector (6); The first inverter (2), the second inverter (3), electric capacity (4) also are connected in the two ends of direct voltage source (1), an end of opening three windings of winding permanent magnet synchronous machine (5) is connected on respectively on three outputs of the first inverter (2), and the other end of opening three windings of winding permanent magnet synchronous machine (5) is connected on respectively on three outputs of the second inverter (3); Common-mode voltage inhibition vector (6) H, J, L, N, Q, S are modulated into 6 groups and drive signals, and correspondence connects 6 group transistor base stage control ends of the first inverter (2) and the second inverter (3) respectively;
The permagnetic synchronous motor winding adopts leaves winding construction, and its six roots of sensation end lead-in wire is connected to respectively the two-level inverter of two standards, and drive system adopts the space vector of voltage that does not contain common-mode voltage only by a DC power supply (1) power supply during modulation.
2. used for electric vehicle single supply according to claim 1 is opened the winding permanent magnet Synchromous machine drive system, it is characterized in that: it is the vehicle-mounted batteries of electric automobile of 300V that DC power supply (1) adopts nominal voltage.
3. used for electric vehicle single supply according to claim 1 is opened the winding permanent magnet Synchromous machine drive system, it is characterized in that: the first inverter (2) and the second inverter (3) all are voltage source inverters, and this twin inverter structure can realize the output of three level.
4. used for electric vehicle single supply according to claim 1 is opened the winding permanent magnet Synchromous machine drive system, it is characterized in that: the twin inverter structure can produce 19 space vector of voltage in the space, have 7 space vectors not produce common-mode voltage, they are positioned at locus H, J, L, N, Q, S and O place; The voltage vector that is positioned at H, J, L, N, Q, S and O place is modulated, but the establishment common-mode voltage.
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| CN201210404534.1A CN102882459B (en) | 2012-10-22 | 2012-10-22 | Single-supply open-coil winding permanent magnet synchronous motor driving system for electric vehicles |
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Cited By (24)
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| CN103259382A (en) * | 2013-06-03 | 2013-08-21 | 东南大学 | Open-winding mixed excitation motor |
| CN103618491A (en) * | 2013-11-21 | 2014-03-05 | 中国矿业大学 | SVPWM strategy based on power supply topology of double three-level inverters |
| CN103731079A (en) * | 2013-12-26 | 2014-04-16 | 浙江大学 | Permanent magnet motor system with shared bus structure and open winding and control method for suppressing zero-sequence current |
| CN103780191A (en) * | 2014-01-24 | 2014-05-07 | 浙江大学 | Open winding permanent magnet synchronous motor series compensation vector control system and control method |
| CN104270062A (en) * | 2014-10-22 | 2015-01-07 | 哈尔滨工业大学 | Three-phase H-bridge driving system for open type winding induction motor |
| CN104320013A (en) * | 2014-11-06 | 2015-01-28 | 东南大学 | Double-inverter common-mode voltage restraining method based on 60-degree coordinate system |
| CN104333272A (en) * | 2014-11-21 | 2015-02-04 | 东南大学 | Fault tolerant system and method of single-phase winding short circuit of three-phase permanent magnet synchronous motor of open winding |
| CN104579032A (en) * | 2015-01-04 | 2015-04-29 | 东南大学 | Power topological structure controlling three switch reluctance motors at the same time |
| CN104753430A (en) * | 2015-04-03 | 2015-07-01 | 东南大学 | Electromobile driving system vector control method using double inverters |
| CN104883115A (en) * | 2015-05-04 | 2015-09-02 | 长安大学 | Winding opening permanent magnet synchronous motor hybrid multi-level inverter and control system |
| CN105245146A (en) * | 2015-11-12 | 2016-01-13 | 西安理工大学 | Method for achieving unidirectional chaotic motion of rotating speed of permanent-magnet synchronous motor |
| CN105720878A (en) * | 2016-04-08 | 2016-06-29 | 东南大学 | Single-phase winding open circuit fault tolerance driving system and control method of open winding permanent magnet synchronous motor |
| CN106788120A (en) * | 2015-11-20 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | Inverter vector control system |
| CN107070347A (en) * | 2017-04-18 | 2017-08-18 | 天津大学 | It is a kind of that winding permanent magnet motor current predictive control method is opened based on virtual vector |
| CN107482980A (en) * | 2017-08-07 | 2017-12-15 | 华中科技大学 | A kind of three phase alternating current motor drive system of suppression common mode noise |
| CN107612453A (en) * | 2017-09-12 | 2018-01-19 | 海信（山东）空调有限公司 | A kind of DRIVEN BY AIR CONDITIONING COMPRESSOR system, compressor of air conditioner and air-conditioning |
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| CN108306272A (en) * | 2018-01-22 | 2018-07-20 | 远景能源（江苏）有限公司 | Wind generator system common-mode voltage suppressing method |
| CN108539833A (en) * | 2018-05-04 | 2018-09-14 | 南通大学 | One kind winding permanent magnet electricity for electric vehicle of opening drives Reconstructed on-board charging system |
| CN110086402A (en) * | 2019-04-15 | 2019-08-02 | 沈阳工业大学 | Based on the inexpensive permanent-magnet synchronous controller for opening winding |
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| CN103259382B (en) * | 2013-06-03 | 2016-04-06 | 东南大学 | One opens winding mixed excitation electric machine |
| CN103618491A (en) * | 2013-11-21 | 2014-03-05 | 中国矿业大学 | SVPWM strategy based on power supply topology of double three-level inverters |
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| CN104270062A (en) * | 2014-10-22 | 2015-01-07 | 哈尔滨工业大学 | Three-phase H-bridge driving system for open type winding induction motor |
| CN104320013B (en) * | 2014-11-06 | 2017-01-18 | 东南大学 | Double-inverter common-mode voltage restraining method based on 60-degree coordinate system |
| CN104320013A (en) * | 2014-11-06 | 2015-01-28 | 东南大学 | Double-inverter common-mode voltage restraining method based on 60-degree coordinate system |
| CN104333272A (en) * | 2014-11-21 | 2015-02-04 | 东南大学 | Fault tolerant system and method of single-phase winding short circuit of three-phase permanent magnet synchronous motor of open winding |
| CN104579032A (en) * | 2015-01-04 | 2015-04-29 | 东南大学 | Power topological structure controlling three switch reluctance motors at the same time |
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| CN105245146A (en) * | 2015-11-12 | 2016-01-13 | 西安理工大学 | Method for achieving unidirectional chaotic motion of rotating speed of permanent-magnet synchronous motor |
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| CN107070347A (en) * | 2017-04-18 | 2017-08-18 | 天津大学 | It is a kind of that winding permanent magnet motor current predictive control method is opened based on virtual vector |
| CN107070347B (en) * | 2017-04-18 | 2019-02-01 | 天津大学 | It is a kind of that winding permanent magnet motor current predictive control method is opened based on virtual vector |
| CN107482980B (en) * | 2017-08-07 | 2019-10-25 | 华中科技大学 | A kind of three phase alternating current motor drive system inhibiting common-mode noise |
| CN107482980A (en) * | 2017-08-07 | 2017-12-15 | 华中科技大学 | A kind of three phase alternating current motor drive system of suppression common mode noise |
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| CN108306272A (en) * | 2018-01-22 | 2018-07-20 | 远景能源（江苏）有限公司 | Wind generator system common-mode voltage suppressing method |
| CN108306272B (en) * | 2018-01-22 | 2019-04-02 | 远景能源（江苏）有限公司 | Wind generator system common-mode voltage suppressing method |
| CN108539833A (en) * | 2018-05-04 | 2018-09-14 | 南通大学 | One kind winding permanent magnet electricity for electric vehicle of opening drives Reconstructed on-board charging system |
| CN108539833B (en) * | 2018-05-04 | 2019-11-26 | 南通大学 | One kind winding permanent magnet electricity for electric vehicle of opening drives Reconstructed on-board charging system |
| CN113491064A (en) * | 2019-02-25 | 2021-10-08 | 三菱电机株式会社 | Motor drive device and refrigeration cycle device |
| CN110086402A (en) * | 2019-04-15 | 2019-08-02 | 沈阳工业大学 | Based on the inexpensive permanent-magnet synchronous controller for opening winding |
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