无刷直流电机磁场定向控制系统研究  

Study of Brushless Direct Current Motor Control System Based on Field Orientation Control

作　　者：肖金凤[1] 喻金[1] 盛义发[1] 张垒[1] 

机构地区：[1]南华大学,电气工程学院,湖南衡阳421001

出　　处：《电力电子技术》2012年第11期103-105,共3页Power Electronics

基　　金：湖南省自然科学基金项目(12JJ6043);衡阳市科技基金项目(2011KG63)~~

摘　　要：转矩脉动是无刷直流电机(BLDCM)目前存在的突出问题之一。这里阐述了BLDCM转矩脉动机理及抑制。仿照永磁同步电机磁场定向控制(FOC),提出了采用FOC策略降低BLDCM转矩脉动,给出了控制策略及实现方法,并建立系统仿真模型,仿真表明基于FOC的BLDCM控制系统性能良好,转矩脉动小。以STM32F103B为核心设计了基于FOC策略的BLDCM控制系统试验平台,基于VB设计了BLDCM上位机监控系统。实测的相电流为近似正弦波,监控系统显示转速波动小,电机运行平稳。The torque ripple is the most outstanding problem of brushless direct current motor（BLDCM）, the torque ripple mechanism and reduction are introduced.Modelling permanent magnet synchronous motor field orientation control （FOC）, the application of FOC strategy is put forward to reduce the torque ripple of BLDCM, the control strategy and implementation method are given,and the system simulation model is established,the simulation results show the introduced control performance of BLDCM based on FOC is good,and the torque ripple is small.STM32F103B is used as the control core to design the BLDCM control system test platform based on FOC.A BLDCM monitoring system based on VB is designed.The phase current curve is approximate sine wave, speed ripple is small, and the operation is stable.

关 键 词：磁场定向控制系统 无刷直流电机 上位机监控系统 BLDCM 系统仿真模型 转矩脉动 永磁同步电机 控制策略 

分 类 号：TM33[电气工程—电机]