摘要
为了改善永磁同步电机(PMSM)的调速性能,本文提出了一种改进式磁场定向控制策略。该方法采用速度环直接输出u_q的方式来提高系统运行的平稳性,并通过设定_qi电流限幅值来防止电流超调量过大。仿真结果表明:相较于传统磁场定向控制(FOC),改进式FOC在实现系统对转速指令快速跟踪的同时,还可以减小转速超调量并缩短系统调节时间,动态控制性能更优。相较于恒压频比控制(V-F),改进式FOC具有_di电流可控的效率优化和_qi电流限幅作用。
This paper proposed an improved field orientation control to enhance the speed control performance of PMSM.The method uses speed loop to directly output the q u to improve the stability of the system operation,and to prevent excessive current overshoot by setting q i current limiting value.Simulation results show that compared with traditional field orientation control,the improved method reduces the speed overshoot and shortens the time of system adjustment while realizing the system's fast track of the speed order,and has better control performance.Compared with the constant v/f,the improved FOC has an d i current controllable efficiency optimization and q i current limiting effect.
作者
刘浩
谢源
何志明
LIU Hao;XIE Yuan;HE Zhi-ming(College of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China;Suzhou Partton Electronics Co.,Ltd.,Suzhou,Jiangsu 215332,China)
出处
《新型工业化》
2018年第7期7-11,16,共6页
The Journal of New Industrialization
基金
国家自然科学基金项目(11304200)
上海市科学技术委员会科研项目(17DZ1201200)
