Forced Movement Process and Vibration Characteristics of Free Conductive Particle
Sun Jixing1, Dai Qi1, Bian Kai2, Li Zhibing3, Chen Weijiang2
1. School of Electrical Engineering Beijing Jiaotong University Beijing 100044 China; 2. State Grid Corporation of China Beijing 100031 China; 3. China Electric Science Research Institute Co. Ltd Beijing 100192 China
Abstract：In order to solve the inhibition and detection problem of conductive particles (hereinafter referred to as particles) in gas insulated metal-enclosed transmission lines (GIL), the motion process of forced particle and its vibration characteristics in AC electric field were studied with reference to the withstand voltage test procedure. Particle movement process in power frequency electric field was obtained through experiment, and then a particle moving model was established to analyze the particle forced vibration characteristic, and the influence regulation of AC electric field excitation on particle vibration was analyzed. Factors affecting particle vibration characteristics include voltage amplitude, voltage frequency, and initial phase angle. When the particle moves without through the gap, its collision frequency decreases with the increase of electric field, and collision randomness increases. When the particle moves through the gap, its collision frequency increases with increasing electric field. The particle collision frequency decreases with the increase of power frequency under the lift-off electric field, and the collision randomness also increases. The initial phase angle has less influence on the particle jump amplitude, and particle collision frequency has a certain symmetry when the initial angle is 0°~180° and 180°~360°.
孙继星, 戴琪, 边凯, 李志兵, 陈维江. 自由导电微粒受迫运动过程与振动特性[J]. 电工技术学报, 2018, 33(22): 5224-5232.
Sun Jixing, Dai Qi, Bian Kai, Li Zhibing, Chen Weijiang. Forced Movement Process and Vibration Characteristics of Free Conductive Particle. Transactions of China Electrotechnical Society, 2018, 33(22): 5224-5232.
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2018, Vol. 33 
