异步电机无速度传感器模型预测控制_张永昌论述.pdf

第 34 卷 第 15 期 中 国 电 机 工 程 学 报 Vol.34 No.15 May 25, 2014 2422 2014 年 5 月 25 日 Proceedings of the CSEE ?2014 Chin.Soc.for Elec.Eng. DOI：10.13334/j.0258-8013.pcsee.2014.15.012 文章编号：0258-8013 (2014) 15-2422-08 中图分类号：TM 46 异步电机无速度传感器模型预测控制 张永昌，杨海涛 (北京市电力电子与电气传动工程研究中心(北方工业大学)，北京市 石景山区 100144) Model Predictive Control for Speed Sensorless Induction Motor Drive ZHANG Yongchang, YANG Haitao (Power Electronics and Motor Drives Engineering Research Center of Beijing (North China University of Technology), Shijingshan District, Beijing 100144, China) ABSTRACT: As a kind of optimal control method, Model 考虑了数字控制延迟对 MPC 的影响，并提出了补偿方法， predictive control (MPC) attracts much attention in the area of 采用预励磁的方法获得较大的启动转矩并减小启动电流。最 AC motor drives recently. For two-level inverter-fed induction 后在两电平逆变器异步电机平台上进行仿真和实验，结果表 motor (IM) drives, conventional MPC needs to predict both 明，该文提出的无速度传感器模型预测控制，在较宽的速度 stator flux and stator current for seven times to obtain the best 范围内都具有良好的动静态性能。 voltage vector minimizing the cost function, which leads to 关键词：异步电机；模型预测控制；无速度传感器；全阶观 high computational burden and is unfavorable for real-time 测器 implementation. Based on the analytical study of the relationship between stator flux and stator current, this paper 0 引言 proposed an improved MPC, which only needs to predict the 模型预测控制(model predictive control，MPC) stator flux and avoids the complicated stator current predict