%0 Journal Article
%T 基于分数阶滑模观测器的BLDCM无位置传感器控制<br>A position sensorless control strategy for BLDCM based on a fractional order sliding mode observer
%A 梁秋实
%A 赵志诚&lt
%A br&gt
%A LIANG Qiushi
%A ZHAO Zhicheng
%J 山东大学学报（工学版）
%D 2017
%R 10.6040/j.issn.1672-3961.0.2016.298
%X 摘要： 为解决传统滑模观测器存在的抖振和相位延迟问题,将分数阶思想引入滑模观测器设计中,利用其传递能量缓慢的特点,结合无刷直流电机(brushless DC motor,BLDCM)线电压方程,设计出分数阶滑模观测器,避免了传统整数阶观测器中因低通滤波器的存在引起观测值相位滞后,同时可以得到光滑的线反电动势估计值曲线,进而获得实时准确的换相信号和估算转速。仿真结果表明:本研究提出的方法,可以准确观测BLDCM线反电动势,实现其无位置传感器控制。<br>Abstract: In order to solve the problem of chattering and the phase delay in traditional sliding mode observer, the fractional order mode was introduced to the sliding mode observer design procedure. Combined with brushless DC motor(BLDCM)line voltage equation, the proposed sliding mode observer was designed by utilizing the slower energy transferring property of fractional order, which avoided observed phase delay in traditional integral order observer as a result of low pass filter existence. At the same time, the smooth assessment curve of line back electromotive force could be obtained, and the real-time and accurate rotor position signal and speed assessment value in this scenario could further be obtained. The simulation result indicated that the proposed sliding mode observer was able to observe the line back electromotive force of BLDCM accurately and achieve its position sensorless control
%K 无位置传感器
%K 滑模观测器
%K 分数阶
%K 无刷直流电机
%K 线反电动势
%K &lt
%K br&gt
%K brushless DC motors
%K position sensorless
%K sliding mode observer
%K fractional order
%K line back electromotive force
%U http://gxbwk.njournal.sdu.edu.cn/CN/10.6040/j.issn.1672-3961.0.2016.298