基于无电流传感器的永磁同步电机系统模型预测控制  

Current sensorless-based model predictive control for PMSM drive system

作　　者：滕青芳[1,2,6] 崔宏伟 朱建国 郭有光 田杰[1] TENG Qing-fang;CUI Hong-wei;ZHU Jian-guo;GUO You-guang;TIAN Jie(Department of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;Key Laboratory of Opto-technology and Intelligent Control, Ministry of Education,Lanzhou Jiaotong University Lanzhou 730070, China;China Communications Second Highway Consultant Company Limited, Wuhan 430050, China;School of Electrical and Information Engineering, The University of Sydney,Sydney 2006, Australia;Faculty of Engineering and Information Technology,University of Technology Sydney,Sydney 2007,Australia;Rail Transit Electrical Automation Engineering Laboratory of Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, China)

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070 [2]兰州交通大学光电技术与智能控制教育部重点实验室,兰州730070 [3]中交第二公路勘察设计研究院有限公司,武汉430050 [4]悉尼大学电气与信息工程学院,澳大利亚悉尼2006 [5]悉尼科技大学工程与信息技术学院,澳大利亚悉尼2007 [6]兰州交通大学甘肃省轨道交通电气自动化工程实验室,兰州730070

出　　处：《电机与控制学报》2019年第5期119-128,共10页Electric Machines and Control

基　　金：国家自然科学基金(61463025);光电技术与智能控制教育部重点实验室(兰州交通大学)开放课题(KFKT2018-8)

摘　　要：针对无任何相电流传感器的三相永磁同步电机(PMSM)驱动系统,提出基于扩张状态观测器(ESO)的无电流传感器模型预测转矩控制(MPTC)策略。为了进行电流反馈以实现高精度控制,两个相电流传感器是必不可少的,为此采用ESO技术构造无电流传感器,以实现对PMSM驱动系统相电流和时变定子电阻的快速准确估计;为了减小转矩和磁链脉动、提高控制性能,给出PMSM驱动系统的MPTC设计方法。所设计基于ESO无电流传感器的MPTC策略能够使PMSM驱动系统不仅可靠稳定运行,而且具有满意的动态性能和较强的鲁棒性。仿真结果验证了所提方法的正确性和有效性。Based on extended state observer (ESO), a novel model predictive torque control (MPTC) strategy was developed for three phase permanent magnet synchronous motor (PMSM) drive system with current sensorless. To achieve high precision control, generally two phase current sensors are indispensable for successful operation of the feedback control. For this purpose, by use of technique of ESO, a new observer for estimating three phase currents and time-varying stator resistance was put forward. Moreover, to reduce torque and flux ripples and improve the performance of the torque and speed, MPTC strategy was employed. The resultant ESO-based MPTC strategy enables PMSM drive system not only to run stably and reliably but also to have satisfactory control performance and strong robustness. The simulation results validate the feasibility and effectiveness of the proposed scheme.

关 键 词：模型预测转矩控制 PMSM驱动系统 扩张状态观测器 无电流传感器 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]