开关磁阻电机转子位置软测量建模与仿真

位置检测是开关磁阻电机调速系统中的重要环节。实时、准确的位置信息是开关磁阻电机正确运行的关键。由于其转子位置角是各相磁链与电流的高度非线性函数,传统线性及解析的方法难以精确求得。提出了基于BP神经网络的位置检测方法,采用BP神经网络建立软测量模型,通过离线和在线相结合的方法对网络进行训练,建立开关磁阻电机的电流、磁链与转子位置之间的非线性映射,从而实现SRM转子无位置传感器的检测。仿真及实验结果表明,方法能够实现电机转子位置的准确估计,进而实现开关磁阻电机的无位置传感器控制。

Modeling and Simulation of Soft Sensor of Rotor Position for Switched Reluctance Motor

Rotor position detection is essential to the speed regulation system of SRM.Duo to the doubly salient structure of SRM,its rotor position is a highly nonlinear function of stator winding current and flux linkage,so general linear methods are hard to achieve precise results.This paper presents an approach of rotor position estimation for switched reluctance motor based on BP neural network.In this thesis,Soft sensor modeling for SRM rotor position using BP neural network is used for the BP neural network,the...