摘要
针对对转永磁同步电机(PMSM)在采用直接转矩控制方式下定子磁链和转矩脉动较大的问题,提出一种改进的直接转矩控制方法,将滑模控制与直接转矩控制相结合,以定子磁链和电磁转矩为滑模面设计滑模控制器。利用Matlab软件对改进前后的对转PMSM直接转矩控制系统进行对比仿真研究。对比实验结果,改进的控制方法有效解决了定子磁链和转矩脉动较大的问题,同时兼具较快的系统响应速度。
In order to solve the problem that the stator flux linkge and torque ripple are larger when the anti-rotary permanent magnet synchronous motor(PMSM)using the direct torque control strategy,an improved direct torque control method combining sliding mode control with direct torque control method is proposed,and the design of sliding mode controller using stator flux and torque as sliding surface.The simulation of direct torque control system before and after improvement is carried out on Matlab software.The experimental results show that the improved control method can effectively solve the stator flux and torque ripple problem,and have a faster response speed of the system.
作者
张其松
黄守道
罗德荣
钟义长
ZHANG Qi-song;HUANG Shou-dao;LUO De-rong;ZHONG Yi-chang(Institute of Electrical and Information Engineering,Hunan University,Changsha 410082,China)
出处
《电力电子技术》
CSCD
北大核心
2018年第12期11-13,36,共4页
Power Electronics
基金
国家自然科学基金(51577052).
关键词
永磁同步电机
滑模控制
直接转矩控制
permanent magnet synchronous motor
sliding mode control
direct torque control
