新型三矢量永磁同步电机电流模型预测控制  

A Novel Three-vector Current Model Predictive Control for Permanent Magnet Synchronous Motor

作　　者：易映萍 刘兆峰 张秋葵 刘普 YI Ying-ping;LIU Zhao-feng;ZHANG Qiu-kui;LIU Pu(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200082,China;College of Electrical and Information Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China)

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]郑州轻工业大学电气信息工程学院,河南郑州450002

出　　处：《控制工程》2023年第3期494-503,共10页Control Engineering of China

基　　金：国家重点研发计划资助项目(018YFB0106300)。

摘　　要：永磁同步电机采用传统有限控制集模型预测控制存在电流稳态误差大,参数依赖性强,谐波分量高等问题,提出了包含调制环节和电流指令修正环节的新型三矢量电流模型预测控制策略。在调制环节中,利用关断IGBT二极管续流的逆变特性插入死区,使得系统具有固定开关频率且无需额外死区补偿,简化了系统模型预测控制策略下交流滤波器的设计。针对模型预测参数依赖性强的问题,设计了电流指令修正环节,弱化了主回路参数不准确对系统控制性能的影响,增强了电流模型预测控制的鲁棒性。实验结果证明,所提控制策略有效、可行,该控制策略能够有效减少系统稳态误差和谐波含量。The traditional finite control set model of permanent magnet synchronous motor has the problems of large steady-state error,strong parameter dependence and high harmonic component.A new three-vector current model predictive control strategy including modulation link and current instruction correction link is proposed.In the modulation link,the dead zone is inserted by using the inverting characteristic of the shutdown IGBT diode to continue the current,which makes the system have a fixed switching frequency without additional dead zone compensation and simplifies the design of the AC filter under the system model prediction control strategy.In view of the strong dependence of the model prediction parameters,a current command correction link is designed to weaken the impact of inaccurate main loop parameters on the system control performance and enhance the robustness of the current model prediction control.Experimental results demonstrate that the proposed control strategy is effective and feasible,and that the control strategy can effectively reduce the system steady-state error and harmonic content.

关 键 词：永磁同步电机 电流模型预测控制 三矢量新型调制方式 阻抗扫描 

分 类 号：TM921[电气工程—电力电子与电力传动]