1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China; 2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300130 China
Abstract：Vibration and noise reduction are important factors that need to be considered during the production and application of reactors. However, most of the current damping methods focus on passive vibration reduction, which cannot reduce the electromagnetic vibration from the root causes. Therefore, an active vibration reduction method based on harmonic injection is proposed for the series reactor. Firstly, according to the positive proportional relationship between the vibration acceleration of the series reactor and the change rate of input power, the relationship between the change rate of power and the input current was deduced. Because the input harmonics in the reactor could change the waveform of the input current, it was proposed to reduce the change rate of power of the reactor by increasing the reverse odd harmonic excitation, thereby suppressing the vibration of the reactor. The optimal harmonic injection amount was calculated by genetic algorithm. Then, the electromagnetic- mechanical coupling model of the series reactor was established, and the electromagnetic vibration of the core of the reactor was calculated based on the finite element method. The comprehensive average damping effect of the series reactor after harmonic injection is 12.90%. Finally, the vibration test platform of series reactor was built. The damping effect of the reactor after harmonic injection is 12.75%, which verifies the correctness of the simulation results. The simulation and experiment show that the method has a good effect on the vibration reduction of the reactor.
闫荣格, 赵文月, 陈俊杰, 张晓杰. 基于谐波注入的串联电抗器的减振研究[J]. 电工技术学报, 2020, 35(16): 3445-3452.
Yan Rongge, Zhao Wenyue, Chen Junjie, Zhang Xiaojie. Research on Vibration Reduction of Series Reactor Based on Harmonic Injection. Transactions of China Electrotechnical Society, 2020, 35(16): 3445-3452.
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2020, Vol. 35 
