摘要
永磁同步电机(permanent magnet synchronous motors,PMSM)中,有一部分电机由于其转子结构的特殊设计,凸极比可以到达5到10倍甚至以上。这种高凸极率的设计在低速无位置控制、弱磁扩速等方面具有很大优势,但同时其调速系统的控制策略更为复杂,对其电机电流上谐波分量的抑制也更为困难。该文提出一种基于比例谐振(proportional resonance,PR)控制器的电机闭环调速控制方法,来抑制高凸极率PMSM的电流谐波,以改善电机性能。该文通过仿真和实验验证该控制方法的有效性。通过实验结果可知,基于PR控制器的谐波抑制策略在电流控制模式和电压控制模式下均能有效抑制高凸极率PMSM的电流谐波。
Because of the special design of the rotor structure in some permanent magnet synchronous magnet motors(PMSM),the saliency ratio will be greatly high.Sometimes the saliency ratio can reach 5 to 10 or even more,which can improve the performance of the flux weakening control and be benefit to zero speed sensorless control.However,the corresponding control method and current harmonic suppression are highly complicated and difficult.Therefore,this paper proposed a motor speed control method including a proportional resonance(PR)controller to suppress current harmonics and improve motor performance.The proposed control strategy was verified by simulation and prototype experiments.The experimental results show that the proposed control method can effectively suppress specific current harmonics both in current control mode and voltage control mode for the PMSMs with high saliency ratio.
作者
魏艺涵
罗响
朱莉
赵继敏
WEI Yihan;LUO Xiang;ZHU Li;ZHAO Jimin(Key Laboratory of Control of Power Transmission and conversion,Ministry of Education(Shanghai Jiao Tong University),Minhang District,Shanghai 200240,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2021年第7期2526-2537,共12页
Proceedings of the CSEE
关键词
永磁同步电机
高凸极率
比例谐振控制器
谐波抑制
permanent magnet synchronous motors(PMSM)
high saliency ratio
proportional resonance controller
harmonic suppression
