摘  要：对无位置传感器无刷直流电机转子位置检测和起动方法进行了研究，给出了以数字信号处理器TMS320LF2407为控制核心的系统结构；并对常用的起动方法进行比较分析，提出一种新的定位-切换方法。样机实验证明了该方法的正确性和有效性。
关键词：无刷直流电动机；无位置传感器；位置检测；起动；实验

Abstract: Studied the rotor position detection and starting method of permanent magnet brushless DC motor with position sensor lessare based on TMS320LF2407.From the analysis of the commonly used starting method，adopted a new location-switching method for experiment.The test shows the correctness and effectiveness of the method.
Key Words: Brushless DC motor;Position sensorless;Position detection;Starting；Experiment