An adaptive sliding mode observer over wide speed range for sensorless control of a brushless DC motor

被引：24
|
作者：
Gan, Ming-Gang [1 ]
Zhang, Meng [1 ]
Zheng, Chun-Ye [1 ]
Chen, Jie [1 ]
机构：
[1] Beijing Inst Technol, Sch Automat, 5 Zhongguancun South St, Beijing 100081, Peoples R China
来源：
CONTROL ENGINEERING PRACTICE | 2018年 / 77卷
基金：
中国国家自然科学基金;
关键词：
Brushless DC motor (BLDCM); Estimation; Sensorless control; Sliding mode observer (SMO); POSITION; IMPLEMENTATION; DESIGN; FLUX;
D O I：
10.1016/j.conengprac.2018.05.004
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a novel adaptive sliding mode observer (SMO) over wide speed range for the sensorless control of a brushless DC motor (BLDCM) system. Designed with a sinusoidal saturation switching function whose boundary layer can be adaptively adjusted according to varying speed through fuzzy algorithm, the SMO is able to improve the estimation accuracy of the back electromotive force (EMF) as well as the rotor position and speed with properly selected parameters under both low speed and high speed circumstances. The asymptotic stability of this new strategy is verified, and its effectiveness and superiority to the conventional SMO are illustrated via simulations on MATLAB and experiments on a BLDCM sensorless control platform.
引用
收藏
页码：52 / 62
页数：11
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