基于并行球形译码算法的PMSM多步预测控制  

Multi-Step Model Predictive Control for PMSM Based on Parallel SDA

作　　者：刘涛 娄瀚文[2] 李跃华 李博 LIU Tao;LOU Hanwen;LI Yuehua;LI Bo(School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China;School of Electrical Engineering,Tiangong University,Tianjin 300387,China;不详)

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072 [2]天津工业大学电气工程学院,天津300387 [3]天津航天机电设备研究所,天津300301 [4]天津市微低重力环境模拟技术重点实验室,天津300301

出　　处：《组合机床与自动化加工技术》2025年第4期102-106,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(51807139);天津市应用基础研究多元投入项目(22JCZDJC00930)项目资助。

摘　　要：模型预测控制在近几十年成为永磁同步电机控制领域的研究热点,其中多步预测算法相比传统的单步预测算法,具有更优的动稳态性能。但其寻优过程复杂且计算量大,限制了其在电机驱动领域的应用。为此,针对永磁同步电机驱动系统进行研究,提出了一种基于并行球形译码算法的多步预测控制策略。相比于传统的多步预测,所提控制策略将多步预测过程转化为最小二乘问题,采用并行球形译码寻优策略实现多个分支同时探索。在此基础上,设计了基于FPGA的并行计算方法,有效优化了寻优效率。实验结果表明,所提策略大大减少了多步预测算法的计算时间,进而实现更高的预测步数,有效降低了永磁同步电机的电流谐波失真与转矩脉动。Model predictive control has become a focal point of research in the field of permanent magnet synchronous motor(PMSM)control over recent decades.Among these,multi-step predictive algorithms offer enhanced dynamic and steady-state performance compared to traditional single-step predictive algorithms.However,their complex optimization process and high computational load have constrained their application in motor drives.To address this challenge,this paper introduces a parallel spherical decoding based multi-step predictive control strategy for PMSM control systems.Unlike conventional strategies,the proposed strategy reformulates the multi-step prediction as a least squares problem,utilizing a parallel sphere decoding strategy to simultaneously explore multiple branches.Furthermore,a parallel computation method based on FPGA is devised to significantly enhance optimization efficiency.Experimental results indicate that the proposed strategy markedly reduces the computational time of the multi-step predictive algorithm,allowing for an increased number of predictive steps and effectively mitigating current harmonic distortion and torque ripple in PMSMs.

关 键 词：永磁同步电机 多步预测控制 并行球形译码算法 并行计算 

分 类 号：TH165[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]