基于虚拟矢量预测的三电平间接矩阵变换器-永磁同步电机改进调制模型预测控制研究  

Improved Modulation Model Predictive Control of Three-level Indirect Matrix Converterpermanent Magnet Synchronous Motor Based on Virtual Vector Prediction

作　　者：程启明 刘科 程尹曼 岳秉言 CHENG Qiming;LIU Ke;CHENG Yinman;YUE Bingyan(Shanghai Key Laboratory of Power Station Automation Technology(Shanghai University of Electric Power),Yangpu District,Shanghai 200090,China;State Grid Shanghai Shibei Electric Power Supply Company,Jing’an District,Shanghai 200041,China)

机构地区：[1]上海市电站自动化技术重点实验室(上海电力大学),上海市杨浦区200090 [2]上海电力公司市北供电分公司,上海市静安区200041

出　　处：《电网技术》2023年第11期4428-4437,共10页Power System Technology

基　　金：国家自然科学基金项目(61905139);上海市电站自动化技术重点实验室项目(13dz2273800)。

摘　　要：针对三电平间接矩阵变换器–永磁同步电机(threelevel indirect matrix converter-permanent magnet synchronous motor,TLIMC-PMSM)系统采用传统的调制模型预测控制(modulationmodelpredictivecontrol,M2PC)时,因M2PC扇区选择和占空比计算不准确等原因造成电机运行波动大和系统波形质量低等问题,提出了基于虚拟矢量预测的改进型调制模型预测控制(virtualvectorprediction-modulation modelpredictivecontrol,VVP-M2PC)。首先,建立TLIMC-PMSM的数学模型,介绍传统M2PC原理。其次,针对三电平逆变级进行改进,对原矢量重新划分扇区,并构造出新的虚拟矢量和新的占空比计算方法来减少电流控制误差,提升波形质量,并比较了2种算法的差异。最后,与MPC控制以及传统M2PC控制进行实验对比,实验结果证明所提算法能够改善PMSM的转速和转矩波形脉动和暂稳态性能,提升系统输入输出波形的质量和鲁棒性。When the traditional modulation model predictive control(M2PC)is used in the three-level indirect matrix converter-permanent magnet synchronous motor(TLIMCPMSM)system,there may exist the large fluctuation of motor operation and low quality of system waveform caused by the inaccurate sector selection and the duty cycle calculations of the M2PC.Aiming at the above problems,an improved modulation model predictive control based on the virtual vector prediction(VVP-M2PC)is proposed.Firstly,the mathematical model of the TLIMC-PMSM is established and the principle of the traditional M2PC is introduced.Secondly,the three-level inverter stage is improved with a new virtual vector and a new duty cycle calculation constructed to reduce the current control error and improve the waveform quality.Finally,compared with the simulation of the MPC control and the traditional M2PC control,the results show that the proposed algorithm is able to improve the speed,the torque ripple and the transient steady-state performance of the PMSM,improving the quality and robustness of the input and output waveforms of the system.

关 键 词：三电平间接矩阵变换器 永磁同步电机 调制模型预测控制 虚拟矢量预测 占空比计算 

分 类 号：TM721[电气工程—电力系统及自动化]