A new method for speed estimation of magnetically suspended flywheel in low speed region

被引：0
|
作者：
Liu Gang [1 ]
Liu Jianzhang
Li Jianke
机构：
[1] Beijing Univ Aeronaut & Astronaut, Sch Instrument Sci & Optoelect Engn, Beijing 100083, Peoples R China
来源：
SEVENTH INTERNATIONAL SYMPOSIUM ON INSTRUMENTATION AND CONTROL TECHNOLOGY: OPTOELECTRONIC TECHNOLOGY AND INSTUMENTS, CONTROL THEORY AND AUTOMATION, AND SPACE EXPLORATION | 2008年 / 7129卷
关键词：
BLDCM; rotor speed; Hall signal; Kalman fliter;
D O I：
10.1117/12.807726
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
It is very important to accurately detect rotor position and speed in brushless direct current motor (BLDCM). Aiming at BLDCM which drives the magnetic suspended reaction flywheel (MSRFW), a novel scheme to estimate the low speed of the BLDCM based on Hall sensors and Kalmam fliter is presented. The average speed over the previous sector is achieved according to the outputs of the three hall sensors, then rotor position of the next sector is computed at the sampling time. The electrical angle calculated can be used to estimate the transient speed with Kalman filter equation. Simulation and experiment show that the proposed method is valid.
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页数：8
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