Periodic Disturbance Rejection Based on Proportional Resonance-extended State Observer
1. National Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, China;
2. Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China;
3. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China;
4. University of Chinese Academy of Sciences, Beijing 101408, China
Abstract：Due to the nonlinearity of inverter and winding asymmetry, the dual three-phase synchronous motor drive systems contain a large number of periodic disturbances. They exist in the stator winding in the form of current harmonics, which causes current distortion and system loss. A harmonic suppression method based on proportional resonance-extended state observer is proposed to address the problem. Firstly, the extended state observer superimposed with multiple proportional resonant modules not only observes the total
disturbance of the harmonic subspace, but also aims to amplify the harmonic current amplitude. Secondly, as for the controlled objects after the improvement, the model predictive current control is introduced to improve the dynamic response of the system. Finally, the experimental results show that the proposed method can effectively reduce the system loss and improve the current sine degree.
段倩文， 朱进聪， 孙杭，邓久强， 毛耀， 包启亮. 基于比例谐振扩张状态观测器的周期扰动抑制方法[J]. 指挥与控制学报, 2024, 10(5): 569-576.
DUAN Qianwen，ZHU Jincong， SUN Hang， DENG Jiuqiang， MAO Yao， BAO Qiliang. Periodic Disturbance Rejection Based on Proportional Resonance-extended State Observer. Journal of Command and Control, 2024, 10(5): 569-576.
2024, Vol. 10 
