Abstract：Aiming at the problem of speed robust control of permanent magnet synchronous motors under the condition of communication time delay in networked control, firstly a time delay dynamic model of permanent magnet synchronous motors was established in a network environment, and then a system speed-control robust controller design was developed based on the model. The Lyapunov-Krasovskii function was used to obtain the stability condition of the system speed control, and the corresponding robust controller gain was further calculated using the LMI toolbox. Finally, in order to verify the controller performance, a controller area network(CAN)communication module was built based on SimEvents, interference signals were introduced to truly reflect the uncertainty delay induced by network communication, and a CAN bus-based speed control system model of permanent magnet synchronous motor was established through MATLAB / Simulink. The motor speed control system model monitored the motor speed, phase current and torque, and conducted simulation and comparative analysis. The results show that in a non-ideal network environment, using the designed speed-regulating robust controller, the system stability is significantly improved compared with the traditional PI controller vector control method, which is sufficient to meet the stability requirements of the permanent magnet synchronous motor speed control.
汪石川,祝小元*,李豆豆,张桂臣. 非理想网络环境下永磁同步电机转速鲁棒控制[J]. 排灌机械工程学报, 2020, 38(4): 421-426.
WANG Shichuan,ZHU Xiaoyuan*,LI Doudou,ZHANG Guichen. Speed robust control of permanent magnet synchronous motor in non-ideal network environment. Journal of Drainage and Irrigation Machinery Engin, 2020, 38(4): 421-426.