一种新型无位置传感器无刷直流电动机起动方法

A Novel Start Method for the Sensorless Brushless DC Motor

根据无刷直流电动机理论 ,应用起动时首先施加激励的主动检测方法 ,得到了转子的初始位置 ,保证了无刷直流电动机的正确成功起动。作为初始位置检测的关键 ,文章给出了相电感和转子的位置关系 ,同时对影响相电感的主要因素做了分析。仿真结果令人满意。

According to the theory of BLDC motors,this paper describes a novel start method for the sensorless BLDC motor with protruding poles.In this method the rotor original position is got with be initiative detection phase inductance,and it brings the start of BLDC motors succeed.It is important to show the relations between phase inductance and rotor position,and the factors affecting phase inductance are discussed.The simulation results is satisfactory.