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永磁同步电机电流环控制耦合分析 被引量:2

Coupling Analysis of Current Loop Control for Permanent Magnet Synchronous Motor
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摘要 在永磁同步电机(PMSM)高频运行和控制载波比低的情况下,由于电机阻抗耦合和数字控制延时的影响,d,q轴电流耦合加重导致电流失稳。在此搭建了同步坐标系下复系数传递函数表达的电流环控制模型,并在此基础上提出一种带角度补偿的复系数PI控制器,解决了耦合导致的PMSM电流环失稳问题。实验结果验证了该方法的可行性和算法的正确性。 In the case of high frequency operation of permanent magnet synchronous motor(PMSM) and low control carrier ratio,due to the influence of motor impedance coupling and digital control delay,the current coupling of d,q axis is aggravated,resulting in steady loss of electricity.The current loop control model of complex coefficient transfer function in synchronous coordinate system is established,and a complex coefficient PI controller with angle compensation is proposed to solve the current loop instability problem of PMSM caused by coupling.Experimental results verify the feasibility and correctness of the algorithm.
作者 国敬 范涛 章回炫 温旭辉 GUO Jing;FAN Tao;ZHANG Hui-xuan;WEN Xu-hui(University of Chinese Academy of Sciences y Beijing 100049,China)
出处 《电力电子技术》 CSCD 北大核心 2019年第11期6-8,共3页 Power Electronics
基金 国家重点研发计划(2016YFB0100600)~~
关键词 永磁同步电机 电流环控制 复系数 permanent magnet synchronous motor current loop control complex coefficient
作者简介 国敬(1985-),男,山东淄博人,硕士,助理研究员,研究方向为永磁同步电机控制。
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