Double-stator doubly salient hybrid excitation motor drive system and control method thereof

A technology of motor drive system and compound excitation, which is applied in the direction of electronically commutated motor control, motor generator control, AC motor control, etc. Magnetomotive force, the effect of improving torque density and power density

Active Publication Date: 2016-09-21
SOUTHEAST UNIV
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Problems solved by technology

[0003] Purpose of the invention: Aiming at the above-mentioned problems in the existing motor system in terms of power density, efficiency, reliability, and magnetic adjustment ability, etc., the present invention proposes a new double-stator double-salient pole compound excitation motor system, which can have a power density High efficiency, high reliability, strong magnetic adjustment ability, etc.

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  • Double-stator doubly salient hybrid excitation motor drive system and control method thereof
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  • Double-stator doubly salient hybrid excitation motor drive system and control method thereof

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0042] The schematic diagram of the multi-port motor drive system based on double-stator double-salient pole compound excitation motor is shown in Fig. figure 1 shown. The two fault reconstruction three-phase T-type three-level inverters 11 are respectively powered by two mutually independent DC power sources,

[0043] The double stator double salient pole motor 12 is controlled. In case of failure of one fault reconfigurable three-phase T-type three-level inverter, th...

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Abstract

The invention discloses a double-stator doubly salient hybrid excitation motor drive system, and the system comprises fault reconstruction five-phase T-type three-level inverters and a double-stator doubly salient hybrid excitation motor; two sets of windings of the double-stator doubly salient hybrid excitation motor are separately powered by two sets of fault reconstruction five-phase T-type three-level inverters, and the two sets of fault reconstruction five-phase T-type three-level inverters are independent with each other. The double-stator doubly salient hybrid excitation motor adopts a double-stator structure which comprises an outer stator, an inner stator, doubly salient rotor, a permanent Nd-Fe-B magnet, a permanent Al-Ni-Co magnet, a magnet regulating coil and an armature winding; and the two stators share one doubly salient rotor. According to the invention, the double-stator doubly salient hybrid excitation motor drive system is provided, a control method of the system is also provided, and the system has advantages of high power density, high efficiency, high reliability, high magnet regulating ability and the like.

Description

technical field [0001] The invention belongs to the fields of electric engineering, motors and power electronics, in particular to a novel double-stator double-salient-pole compound excitation motor drive system and a control method thereof. Background technique [0002] With the continuous improvement of power density, efficiency, reliability and other requirements of modern motor drive systems, traditional motor systems have encountered bottlenecks. Among several traditional motors, the asynchronous motor has low efficiency and power factor because it needs the stator armature winding to generate excitation current. Since the permanent magnet synchronous motor uses permanent magnets to generate an air gap magnetic field, the armature winding only needs to provide torque current, so the efficiency is high. However, the magnetic field generated by permanent magnets is difficult to adjust, so it is not conducive to the weak field speed regulation operation driven by new ener...

Claims

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Application Information

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IPC IPC(8): H02P21/05H02P27/08H02K16/04
CPCH02K16/04H02P21/05H02P27/08
Inventor 王政王学庆曹佳伟程明
Owner SOUTHEAST UNIV
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