Dynamic Sliding Mode Control for Single Stator Dual Rotor Disc Counter-Rotating Permanent Magnet Synchronous Motor
Luo Derong1, He Ruizhi1, Huang Shoudao1, He Shengtao2, Zhong Yichang1
1. National Engineering Research Center of Energy Conversion and Control Hunan University Changsha 410082 China; 2. School of Electrical and Information Engineering Huazhong University of Science and Technology Wuhan 430074 China
Abstract：When the single-stator dual-rotor disc-rotating permanent-magnet synchronous motor runs under unbalanced loads and disturbances, there will be problems of unstable operation and poor robustness. In order to solve this problem, this paper analyzes the stability of the motor under the condition of different loads on both sides of the double rotor, and proposes a dynamic sliding mode control strategy which switches the reference frame in real time. The control strategy realizes the dynamic control of the dual rotors by comparing the torque angles in real time to switch the coordinate system required for control. Meanwhile, in order to improve the robustness of the system, a nonsingular fast terminal sliding mode speed controller is constructed to deal with the influence of parameter uncertainties and load disturbances on the dynamic control system. The experimental results show that the proposed dynamic sliding mode control strategy can make the system run stably and reliably.
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2019, Vol. 34 
