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Permanent magnet synchronous motor control method based on model reference adaptive system (MRAS) and fuzzy control

A technology of permanent magnet synchronous motor and control method, which is applied in the direction of controlling generator, motor generator control, controlling electromechanical brake, etc.

Inactive Publication Date: 2012-11-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a permanent magnet synchronous motor control method based on MRAS and fuzzy control, to solve the problems caused by the installation of mechanical sensors, improve the reliability of the control system and reduce the cost

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  • Permanent magnet synchronous motor control method based on model reference adaptive system (MRAS) and fuzzy control
  • Permanent magnet synchronous motor control method based on model reference adaptive system (MRAS) and fuzzy control
  • Permanent magnet synchronous motor control method based on model reference adaptive system (MRAS) and fuzzy control

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[0108] The rated power is 1.1kW, the rated electromagnetic speed is 314rad / s, the rated phase current is 2.7A, the d-axis inductance is 0.06861H, the q-axis inductance is 0.22183H, the stator resistance is 7.882Ω, the moment of inertia is 0.0021kg.m2 and A permanent magnet synchronous motor with 2 pole pairs is subjected to a simulation test of the control method of the present invention. The start of the permanent magnet synchronous motor is controlled by the fuzzy control algorithm. When the electromagnetic speed of the motor rises to 200rad / s, the control algorithm is switched from the fuzzy control algorithm to the vector control algorithm, and the expected electromagnetic speed of the given vector control module is 200rad / s, 2s Finally, the expected electromagnetic speed is changed to 314rad / s.

[0109] The motor electromagnetic speed simulation result figure of the permanent magnet synchronous motor control method of the present invention is as follows Figure 7 As show...

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Abstract

The invention discloses a permanent magnet synchronous motor control method based on a model reference adaptive system (MRAS) and fuzzy control. The rotor speed of a permanent magnet synchronous motor is estimated by using the MRAS, the problem caused by installation of a mechanical sensor is solved, the reliability of a control system is improved, and the cost of the control system is reduced. Meanwhile, when the permanent magnet synchronous motor rotates at low speed, a control effect based on a speed-sensorless vector control method is poor, and load capacity is low. The vector control method for the permanent magnet synchronous motor which rotates at the low speed is replaced by a fuzzy control algorithm, so a control algorithm for the permanent magnet synchronous motor which rotates at the low speed is simplified, and the control system quickly passes through a low-speed stage.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle permanent magnet synchronous motor control, and more specifically relates to a permanent magnet synchronous motor control method based on MRAS and fuzzy control. Background technique [0002] With the development of society and the increasingly prominent issues of energy and environmental protection, pure electric vehicles have attracted more and more attention from all over the world due to their advantages of zero emission and low noise. Electric vehicles have become the development direction of the automobile industry in the 21st century. One of the most important development directions of vehicles. [0003] Permanent magnet synchronous motors are more and more used in the electric vehicle industry due to their light weight, small size, simple structure, high efficiency and high reliability. [0004] Motion control of permanent magnet synchronous motors requires accurate rotor pole po...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/14H02P21/18
Inventor 邹见效凡时财徐红兵袁炀
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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