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Error Analysis of Sensorless Position Estimation and Compensation for Brushlss DC Motor
Author(s): 
Pages: 14-19
Year: Issue:  1
Journal: S&M Electric Machines

Keyword:  无刷直流电机 无位置传感器 磁链函数 误差分析 补偿;
Abstract: 基于开环观测模型的磁链函数转子位置检测方法实现简单,可拓宽无刷直流电机(BLDCM)无位置传感器控制系统低速检测范围,但电机参数变化和测量误差会引起转子位置估计误差。因此,对转子位置估计误差进行了深入分析,采用离线标定、在线查表的位置误差补偿方法减小位置估计偏差,拓宽低速检测范围,并进行了试验验证。该误差补偿方案可解决电流、电压传感器检测误差及电阻电感参数测量误差对位置估计的影响,并且易于实现。
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