MIAO Zhong-cui, ZHANG Wen-bin, HAN Tian-liang, YU Xian-fei
（School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China）
Abstract：In view of the variation of system parameters and external load disturbance affecting the high-performance control of permanent magnet synchronous motor (PMSM), a fractional order integral sliding mode control (FOISMC) strategy is developed for PMSM drive system by means of fractional order sliding mode observer (FOSMO). Based on FOISMC technology, a fractional order integral sliding mode regulator(FOISM-based regulator) is designed, and a global integral sliding mode surface design method is presented, which can guarantee the global robustness of the system. Combining fractional order theory and sliding mode control theory, the FOSMO is constructed to achieve better identification accuracy of the speed and rotor position. Meanwhile the sliding mode load observer is used to observe the load torque in real time, and the observed value is transmitted to speed regulator to improve the capability of accommodating the challenge of load disturbance. Simulation results validate the feasibility and effectiveness of the proposed scheme.
Key words：fractional order calculus; sliding mode regulator; sliding mode observer; sensorless control; load observer; permanent magnet synchronous motor(PMSM)
CLD number：TM313 Document code：A
Article ID：1674-8042（2019）04-0389-09 doi：10.3969/j.issn.1674-8042.2019.04.011
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基于分数阶滑模观测器的PMSM分数阶积分滑模控制
缪仲翠， 张文宾， 韩天亮， 余现飞
（兰州交通大学 自动化与电气工程学院， 甘肃 兰州 730070）
摘 要: 针对永磁同步电机（Permanent magnet synchronous motor, PMSM)运行过程中内部参数变化和外部负载扰动影响控制性能的问题， 提出了一种基于分数阶滑模观测器的PMSM分数阶积分滑模控制(Fractional order integral sliding mode control , FOISMC)策略。 基于FOISMC技术， 设计了分数阶积分滑模转速调节器， 给出了能保证系统全局鲁棒性的全程积分滑模面设计方法。 基于分数阶理论和滑模控制理论构造了分数阶滑模观测器， 实现了对速度和转子位置角的高精度估计。 利用滑模负载观测器对负载转矩进行了实时观测， 并将观测到的负载转矩传递到转速控制器中， 提高了系统抗负载扰动的能力。 仿真实验验证了所提方法的可行性和有效性。
关键词: 分数阶微积分； 滑模控制器； 滑模观测器； 无传感器控制； 负载观测器； 永磁同步电机
引用格式： MIAO Zhong-cui, ZHANG Wen-bin, HAN Tian-liang， et al. Fractional order integral sliding mode control for PMSM based on fractional order sliding mode observer. Journal of Measurement Science and Instrumentation, 2019, 10（4）： 389-397. ［doi： 10.3969／j.issn.1674-8042.2019.04.011］
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