基于FOSM-MRAS观测器的永磁同步电机MPTC系统  

Permanent magnet synchronous motor MPTC system based on FOSM-MRAS observer

作　　者：缪仲翠[1,2] 王志浩 李东亮 余现飞 张文宾 MIAO Zhong-cui;WANG Zhi-hao;LI Dong-liang;YU Xian-fei;ZHANG Wen-bin(Department of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Key Laboratory of Opto-Technology and Intelligent Control Ministry Education,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

出　　处：《电机与控制学报》2020年第4期121-130,共10页Electric Machines and Control

基　　金：国家自然科学基金(61663022)。

摘　　要：针对三相永磁同步电机(PMSM)控制系统的速度估计及调速问题,首先设计了新型的分数阶滑模变结构模型参考自适应(FOSM-MRAS)速度观测器,通过波波夫超稳定性定理保证了观测器的稳定性,该观测器综合了滑模变结构和模型参考自适应的优点。然后采用模型预测转矩控制(MPTC)策略,研究了永磁同步电动机MPTC系统,并设计了分数阶滑模速度控制器(FOSMC),通过李雅普诺夫稳定定理证明了其收敛性和稳定性。最后将速度观测器应用到了MPTC系统中,实现了无速度传感器控制。仿真试验表明,所设计的速度观测器提高了速度估计精度和鲁棒性,MPTC策略有效减小了转矩脉动,基于FOSMC的永磁同步电机无速度传感器MPTC系统具有良好的动态性能和静态性能,提高了系统可靠性。Aiming at the speed estimation and speed regulation of three-phase permanent magnet synchronous motor(PMSM)control system,a fractional order sliding mode model reference adaptive system(FOSM-MRAS)is designed,and speed observer guarantees the stability of the observer by reverse solving the Popov hyperstability theorem.The observer combines the advantages of sliding mode variable structure and model reference adaptive.Then,the model predictive torque control(MPTC)strategy was used to study the MPTC system based on PMSM,and the fractional order sliding mode controller(FOSMC)was designed.The convergence and stability were proved by Lyapunov stability theorem.Finally,the speed observer was applied to the MPTC system to realize the speed sensorless control.The simulation results show that the designed speed observer improves the speed estimation accuracy and robustness,and the MPTC strategy effectively reduces the torque ripple.The speed sensorless MPTC system based on FOSMC has good dynamic and static performance,and improves the system reliability.

关 键 词：模型参考自适应 模型预测转矩控制 分数阶微积分 无速度传感器 永磁同步电机 滑模 

分 类 号：TM301.2[电气工程—电机]