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永磁同步电机网络预测控制器设计

发表时间:2016-08-31  浏览量:2021  下载量:660
全部作者: 胡继宝,张艳
作者单位: 上海海事大学物流工程学院
摘 要: 为提高永磁同步电机(permanent magnet synchronous motor,PMSM)的稳定性能,建立电机的线性化模型,并采用广义预测控制(generalized predictive control,GPC)算法设计转速控制律,针对电机的参数扰动问题提出一种广义预测自校正算法进行反馈校正。针对网络控制系统中的延时和丢包问题,根据执行器的四种时序状态提出一种网络补偿算法,同时可解决数据包的时序错乱问题。针对因长时延导致的连续数据丢包问题,采用对历史时刻控制增量的预测值取加权平均的方法对网络补偿算法进行改进。根据新的网络补偿算法设计一种维持转速稳定的永磁同步电机网络预测控制器。仿真结果表明,网络预测控制器能够快速响应电机转速的调整,极大地改善了PMSM 网络控制系统的性能。
关 键 词: 自动控制技术;网络控制系统;广义预测控制;永磁同步电机;补偿算法
Title: Design of networked predictive controllers for permanent magnet synchronous motor
Author: HU Jibao, ZHANG Yan
Organization: Logistics Engineering College, Shanghai Maritime University, Shanghai 201306, China
Abstract: The linear model was presented to improve stability of permanent magnet synchronous motor (PMSM). And it was used to design the speed control strategy with generalized predictive control (GPC) algorithm. For PMSM control system with slowly varying parameters, a generalized predictive self-tuning algorithm was proposed. A networked compensation algorithm was presented to compensate data packet loss and time delay based on four time sequence of the actuator. And it could also solve the problem of out of order. An improved compensation algorithm took a weighted average of the predictive control increment vector in the past. And it was presented to compensate the continuous data loss that long delay produced. So, the new predictive compensation algorithm was used to design networked predictive controllers for PMSM. Simulation results show the improved networked predictive controllers can be well adapted to given speed variation and improve performance of the control system.
Key words: automatic control technology; networked control system; generalized predictive control; permanent magnet synchronous motor; compensation algorithm
发表期数: 2016年8月第16期
引用格式: 胡继宝,张艳. 永磁同步电机网络预测控制器设计[J]. 中国科技论文在线精品论文,2016,9(16):1689-1697.
 
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