永磁同步电机变频调速系统动态解耦控制方法  

Dynamic Decoupling Control Method for Permanent Magnet Synchronous Motor Variable Frequency Speed Control System

作　　者：程玮 杨智玲[1,2] CHENG Wei;YANG Zhiling(Xiamen Key Laboratory of Intelligent Fishery,Xiamen,Fujian 361100;College of Ocean Mechatronics,Xiamen Ocean Vocational College,Xiamen,Fujian 361100)

机构地区：[1]厦门市智慧渔业重点实验室,福建厦门361100 [2]厦门海洋职业技术学院海洋机电学院,福建厦门361100

出　　处：《绵阳师范学院学报》2024年第2期34-41,共8页Journal of Mianyang Teachers＇ College

基　　金：中国高校产学研创新基金“新一代信息技术创新项目”(2021ITA10012);福建省海洋经济发展专项资金项目(FJHJF-L-2021-12);厦门海洋职业技术学院高层次人才研究项目(KYG202101).

摘　　要：常规的永磁同步电机变频调速系统解耦控制,主要采用系统反馈信号完成解耦控制,忽略了反馈信号的预测误差,导致解耦控制结果负荷响应幅值不够稳定.因此,提出永磁同步电机变频调速系统动态解耦控制方法.建立系统数学模型,在该模型中分离系统模式系数获取控制信号,对该信号进行优化处理,基于输出期望值计算预测误差,加权修正预测值,形成动态控制信号,分离有功-无功信号实现动态解耦控制.实验结果表明:所提方法应用后得出的动态解耦控制结果,表现出的负荷响应幅值较为稳定,满足了永磁同步电机变频调速系统的实际解耦控制需求.Decoupling control of conventional permanent magnet synchronous motor variable frequency speed regulation system mainly relies on the system feedback signal,neglecting the prediction error of the feedback sig⁃nal,resulting in an unstable magnitude of the decoupling control response.Therefore,a dynamic decoupling con⁃trol method for the permanent magnet synchronous motor variable frequency speed regulation system is proposed.The system mathematical model is established to separate the system mode coefficients and obtain the control sig⁃nal.The control signal is optimized,and the prediction error is calculated based on the output reference value.The predicted value is weighted and corrected to form a dynamic control signal,which enables dynamic decoupling control by separating active and reactive power signals.Experimental results show that the proposed method achieves stable magnitude of the decoupling control response,meeting the practical decoupling control require⁃ments of the permanent magnet synchronous motor variable frequency speed regulation system.

关 键 词：永磁同步电机 变频调速系统 动态解耦 解耦控制 控制方法 

分 类 号：TM341[电气工程—电机]