基于线反电动势检测的无刷直流电机无位置传感器控制系统仿真新方法  

A novel simulated method of sensorless control system for BLDC based on line back-EMF

作　　者：温嘉斌[1] 姜彪[1] 葛佳航 郭萍萍[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150080

出　　处：《黑龙江大学自然科学学报》2017年第1期103-109,共7页Journal of Natural Science of Heilongjiang University

基　　金：黑龙江省自然科学基金资助项目(E201302)

摘　　要：在分析无刷直流电机(BLDC)数学模型的基础上,提出了基于线反电动势过零法的无位置传感器控制系统,同时采用转速和电流双闭环控制,使得系统具有更好的稳定性。在Matlab/Simulink环境下,通过把Simulink模块库中的已有模块与S函数相结合的方法,构建了无位置传感器控制系统的仿真模型。仿真结果与理论分析一致,证明了所提出的无位置传感器控制系统仿真模型的准确性。该模型为实际电机控制系统设计提供了指导和参考。According to the mathematical model of the Brushless DC motor （ BLDC）, the sensorless control system of BLDC based on the line back electromotive force （line back-EMF） zore-crossing method was proposed. For making the system steadily well , the speed and current double closed-loop control system was established. The model of the sensorless control system was designed, by the combination of the blocks in the Simulink library and S-fuctions. The accuracy and validity are testified by the coincidence of simulation results and theory analysis. This model will offer to design actual control system of motor as guidance and reference.

关 键 词：无刷直流电机 无位置传感器 线反电动势过零检测 SIMULINK仿真 

分 类 号：O175.13[理学—数学]