摘要
以纯电动车用45k W永磁同步电机驱动系统为研究对象,搭建Id=0的空间矢量控制策略(SVPWM)和基于空间矢量调制的直接转矩控制策略(SVM-DTC),进行仿真对比与分析。结果表明,基于空间矢量调制的直接转矩控制与传统空间矢量控制方法相比,可以明显减小电机输出的转矩波动,提高电机瞬态转矩品质。所得结论为直接转矩控制方法在研究电动车驱动系统中的应用提供了仿真支持,为进一步深入优化奠定基础。
A comparative simulation of two control techniques,i. e. vector control( Id= 0) and modified DTC based on voltage vector selection strategy is conducted on the permanent magnet synchronous motor( PMSM) drive of45 k W used in an electric vehicle. The results show that compared with the vector control,the modified DTC based on voltage vector selection strategy can markedly reduce the torque ripple and improve the quality of the transient torque,it gives support to the application of DTC strategy in powertrain system and prepares the ground for further study.
出处
《机电一体化》
2015年第5期19-24,共6页
Mechatronics
基金
国家863计划项目(编号2011AA11A265)
国家自然科学基金(编号51205290)
中央高校基本科研业务费专项资金项目(编号1700219118)
关键词
电动汽车
永磁同步电机
矢量控制
直接转矩控制
转矩脉动
electric vehicles permanent magnet synchronous motor vector control direct torque control
torque ripple
