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Double three-phase permanent magnet motor vector control method based on proportional resonance regulator

A dual-three-phase permanent magnet and vector control technology, which is applied in vector control systems, motor generator control, electronic commutation motor control, etc., can solve problems such as limited control effects

Active Publication Date: 2013-12-11
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

For the 6m±1 (m=1, 3, 5...) current harmonic components on the z1-z2 sub-plane, the traditional vector control only suppresses the current harmonic components by controlling the voltage components, and its control effect is very good. limited

Method used

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  • Double three-phase permanent magnet motor vector control method based on proportional resonance regulator
  • Double three-phase permanent magnet motor vector control method based on proportional resonance regulator
  • Double three-phase permanent magnet motor vector control method based on proportional resonance regulator

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Embodiment Construction

[0046] The purpose and effects of the present invention will become more apparent by referring to the accompanying drawings in detail of the present invention.

[0047] figure 1 It is a structural diagram of a dual three-phase permanent magnet synchronous motor. From the distribution of the stator winding, it can be seen that the stator winding is composed of two sets of conventional three-phase windings ABC and DEF, each set of windings is Y-connected, and the corresponding internal windings are 120° apart from each other in space, while the two sets of three-phase The angle between the corresponding phases of the windings is 30°. Therefore, in terms of hardware circuit design, the dual-three-phase permanent magnet synchronous motor is a six-phase system. In order to make the stator flux linkage and permanent magnet flux interaction generate constant electromagnetic torque, the phase winding current in each Y-shaped winding The phase difference is 120°, and the correspondin...

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Abstract

The invention discloses a double three-phase permanent magnet motor vector control method based on a proportional resonance regulator. The double three-phase permanent magnet motor vector control method aims at weakening and eliminating (6m+ / -1)th power of motor harmonic components under double three-phase permanent magnet motor vector control, wherein m=1,3,5.... The double three-phase permanent magnet motor vector control method is characterized in that on the basis of vector space decoupling vector control, a proportional-resonant regulator is adopted to carry out tracking control on the components (isz1 and isz2) on z1-z2 harmonic sub planes after static coordinate transformation is carried out on six-phase electric currents. By the adoption of the double three-phase permanent magnet motor vector control method, optimal control of a double three-phase permanent magnet synchronous motor can be achieved. Compared with traditional double three-phase motor vector control, the double three-phase permanent magnet motor vector control method has the advantages that current wave forms are more sinusoidal, the harmonic content is greatly reduced, especially the (6m+ / -1)th power of the current harmonic components is reduced, system loss is low, and good steady-state performance is achieved.

Description

technical field [0001] The invention belongs to the field of motor control, and relates to a vector control method of a dual-three-phase permanent magnet synchronous motor based on a proportional resonance regulator. Background technique [0002] The multi-phase system has many advantages such as small torque ripple, high redundancy, high reliability, and excellent static and dynamic performance of the system. It is an important way to realize high-voltage and high-power AC transmission at present. It has great prospects in military and important industrial fields that require high reliability and high power, such as aerospace, submarine power systems, nuclear power plant water cooling systems, and electric vehicles. Theoretically speaking, the more phases, the smaller the torque ripple, and at the same time, there are more redundant options for motor body or inverter failure, which can improve the reliability of the system. However, the increase in the number of phases of ...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P5/74
Inventor 章玮张平
Owner ZHEJIANG UNIV
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