摘要
永磁同步电机运行在低载波比情况下d,q轴电流耦合问题严重,同时系统延时较大无法忽略。传统PI电流控制器受限于器件开关频率无法实现较好的控制效果,解耦器因为延时问题解耦效果很差,同时对电机参数敏感。针对上述问题,这篇文章在传统复矢量电流控制器的基础上进行改进优化,进行了复矢量电流控制器的延时补偿,有效避免了电机高转速下电流控制器的失稳;同时考虑了较复杂状态下的复矢量电流控制器如何实现以及增加鲁棒性的问题。Matlab仿真实验证明了优化复矢量控制的正确性和有效性。
Permanent magnet synchronous motor has problem when running in low carrier ratio:the coupling of its d axis current and q axis current is serious,and the system delay is too big to ignore.The control effect of traditional current controller is limited by the switch frequency of power electronic devices.The effect of decoupler is bad due to the system delay,and it is sensitive to motor parameters.Regarding the issue above,this article made improvements on traditional plural vector current controller.This article made delay compensation on plural vector current controller to effectively avoid controller losing control when PMSM is running in high speed.At the same time this article considered how to achieve complex plural vector current controller in actual experiment and how to increase robustness.The Matlab simulation proves the correctness and effectiveness of the improvedplural vector control.
作者
张宏阳
陈飞宇
陈国华
倪祯浩
胡远敏
黄晓艳
ZHANG Hongyang;CHEN Feiyu;CHEN Guohua;NI Zhenhao;HU Yuanmin;HUANG Xiaoyan(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;Zhejiang CRRC Electric Vehicle Company Limited,Ningbo Zhejiang 315112,China)
出处
《微电机》
2021年第8期62-67,共6页
Micromotors
基金
宁波市科技创新2025重大专项(2018B10034、2018B10001)。
