无刷直流电机无位置传感器的转子位置检测方法综述

Summary on Rotor Position Detection Method for Sensorless Position Brushless D.C. Motors

转子位置实时检测是BLDCM调速系统实现闭环控制的重要组成环节,传统的借助于位置传感器的位置检测已不能适应当前技术发展和实际应用的需要,所以无位置检测技术成为近年来学术界的研究热点。本文分析了目前国内外文献介绍的几种典型的无位置传感器的转子位置检测方法,并对它们的基本原理、实现途径、改进策略、适用场合做了详细的说明。

Real time detection of rotor position is an important part of BLDCM speed regulating system for closed-loop controlling. Traditional method with position sensor is not suitable the need for current technology development and actual applications, so the sen- sorless position detecting technology has been the research hotspot recently. In this paper, several typical methods of sensorless position for detecting the rotor position introduced in domestic and foreign documents are analyzed, and the basic principles, ways, improving strategy, and suitable areas are illustrated in detail.