Permanent magnet synchronous motor vector control system and method based on H infinite control

A permanent magnet synchronous motor, vector control technology, applied in vector control systems, control systems, control generators, etc., can solve problems such as poor robustness and anti-interference ability

Inactive Publication Date: 2019-11-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a permanent magnet synchronous motor vector control system and method based on H infinite control, to solve the robustness and resistance of the permanent magnet synchronous motor vector control in the prior art. The problem of poor interference ability

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  • Permanent magnet synchronous motor vector control system and method based on H infinite control
  • Permanent magnet synchronous motor vector control system and method based on H infinite control
  • Permanent magnet synchronous motor vector control system and method based on H infinite control

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Embodiment Construction

[0046] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and the drawings, and the content mentioned in the embodiments does not limit the present invention.

[0047] Reference figure 1 As shown, a permanent magnet synchronous motor vector control system based on H infinity control of the present invention includes: a speed loop H∞ robust controller, a current loop PI controller, a Park inverse transformation module, and a space vector pulse width modulation module ( SVPWM module), inverter module, permanent magnet synchronous motor module (PMSM module), Clark conversion module, Park conversion module, speed calculation module; among them,

[0048] Speed ​​loop H∞ robust controller, used to control the speed loop, so that when the motor starts and changes speed, the speed can quickly reach the set value and remain stable; its input terminal inputs the set angular velocity ω...

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Abstract

The invention discloses permanent magnet synchronous motor vector control system and method based on H infinite control. The system comprises a rotating speed loop H-infinity robust controller, a current loop PI controller, a Park inverse transformation module, a space vector pulse width modulation module, an inverter module, a permanent magnet synchronous motor module, a Clark transformation module, a Park transformation module and a rotating speed calculation module. Through the rotating speed loop H-infinity robust controller, when the vector control system of the permanent magnet synchronous motor is subjected to external disturbance input, good quick response capacity and robustness can still be kept, and the influence of parameter perturbation of the permanent magnet synchronous motor on the control system can be effectively restrained.

Description

Technical field [0001] The invention belongs to the technical field of permanent magnet synchronous motor vector control, and specifically refers to a permanent magnet synchronous motor vector control system and control method based on mixed sensitivity H∞ robust control. Background technique [0002] Permanent magnet synchronous motors are widely used in aviation, aerospace, automotive and other national defense and national economic fields due to their excellent rapid response capability, high power factor, high efficiency, brushless, and small size. According to the structure and electromagnetic principle of the permanent magnet synchronous motor, it is a complex multivariable system with strong coupling and nonlinearity. In order to realize the control of the permanent magnet synchronous motor, the method of coordinate system transformation is generally used to decouple the system model, and the vector control strategy is selected, so that the control method of the permanent ...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/18
CPCH02P21/0003H02P21/18
Inventor 刘津强赵万忠王春燕周小川黄云丰邹松春
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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