测控技术2013，Vol.32Issue(7)：74-78,5.
无刷直流电机正弦波控制及其在电动自行车中的应用
Sine Wave Brushless DC Motor Control and Its Application In Electric Bicycle
摘要
Abstract
Brushless DC motor is typically controlled by the square wave,the algorithm is simple,easy to control,but its weakness is torque ripple and high noise.Based on the analysis of conventional three-phase SPWM,a two-phase SPWM control algorithm of minimum switching loss is brought forward,and the electric bicycle control system is designed based on micro-controller μPD79F9211 which is used as a control chip.The rotor position of the brushless DC motor is determined with the three-phase Hall signal.Through the speed closed-loop control,current-limited control and two-phase SPWM control algorithm of minimum switching loss,a simple and efficient sine wave control system of the electric bicycle is realized.Practice has proved that compaed with the square wave control in electric bicycle,this system reduces torque ripple,lower noise in start-up and operation process.The resuhs show that the control system is feasible and has a good price.At present,the system has been achieved and successfully used in electric bicycle system.关键词
微控制器/电动自行车/无刷直流电机/正弦波脉宽调制Key words
micro-controller/ electric bicycle/ BLDCM/ SPWM分类
信息技术与安全科学引用本文复制引用
王会明,丁学明..无刷直流电机正弦波控制及其在电动自行车中的应用[J].测控技术,2013,32(7):74-78,5.基金项目
上海理工大学光电学院教师创新基金资助项目(GDCX-T-101) （GDCX-T-101）
