电机与控制应用2017，Vol.44Issue(2)：47-51,77,6.
一种改进的永磁同步电机直接转矩控制方法
A Modified Direct Torque Control of Permanent Magnet Synchronous Motor
摘要
Abstract
A modified direct torque control (DTC) method based on duty ratio modulated for permanent magnet synchronous motor was proposed.The rule of torque ripple and stator flux ripple under different voltage vectors of conventional DTC was analyzed.In order to decrease the tipple of torque and stator flux,a modified duty ratio modulated was proposed.In this method,both torque error and flux error were used to calculate the duty ratio in each control period.Moreover,it made full use of the characteristic of the zero voltage vector to reduce the torque.The calculation formula of duty cycle was deduced,simulation and experimental results showed that this method could effectively reduce the torque ripple and the flux ripple.关键词
永磁同步电机/直接转矩控制/占空比调制/转矩波动/磁链波动Key words
permanent magnet synchronous motor (PMSM)/direct torque control (DTC)/duty ratio modulated/torque ripple/flux ripple分类
信息技术与安全科学引用本文复制引用
孙德明,杜明星,刘志宏,魏克新..一种改进的永磁同步电机直接转矩控制方法[J].电机与控制应用,2017,44(2):47-51,77,6.基金项目
天津市应用基础与前沿技术研究计划(14JCYBJC18400) （14JCYBJC18400）
