H∞ speed observer of permanent magnet synchronous motor based on immune algorithm

Author

Qun Zhu ; Zhonggang Yin ; Yanru Zhong

Author_Institution

Dept. of Electr. Eng., Xi´an Univ. of Technol., Xi´an, China

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

676

Lastpage

681

Abstract

In order to improve the performance and the stability of the sensorless vector control system for permanent magnet synchronous motor, H_∞ speed observer of permanent magnet synchronous motor based on Immune Algorithm (IA) is proposed in this paper. The H_∞ speed observer is used instead of speed sensor to implement the speed identification for permanent magnet synchronous motor. The problem that the weighting factor of the observer is difficult to be selected, restricts its application of high-performance in the variable frequency system. So the IA algorithm is introduced into the H_∞ speed observer, and the observer coefficient is optimized by taking full advantage of the adaptability of IA algorithm. Therefore, the performance of the sensorless vector control system for permanent magnet synchronous motor is improved better. The simulation and experimental results verify the correctness and effectiveness of the algorithm.

Keywords

H^∞ control; angular velocity control; machine vector control; observers; permanent magnet motors; sensorless machine control; synchronous motors; H∞ speed observer; IA algorithm; immune algorithm; observer coefficient optimization; observer weighting factor; permanent magnet synchronous motor; sensorless vector control system stability; speed identification; variable frequency system; Immune system; Machine vector control; Mathematical model; Observers; Permanent magnet motors; Stators; Synchronous motors; H∞ speed observer; Immune algorithm; PMSM; Riccati equation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7037938

Filename

7037938