【摘要】 为研究周期性波动载荷条件下弓网回路电流的间谐波特性,开展了大量的弓网系统受流实验,分析了静态接触压力、滑动速度、接触电流对回路电流间谐波特性的影响.接触电阻波动和离线电弧/火花是产生回路电流间谐波的主要原因.该间谐波主要分布在0~100 Hz,以特定的频率间隔、以基波50 Hz为中心左右对称分布.间谐波的频率间隔与静态接触压力、接触电流无关,随滑动速度的增加近似线性增加.间谐波幅值随静态接触压力的增加先减小后增大、随接触电流的增加而增大.对于深入研究弓网系统的受流特性具有借鉴意义.更多还原

【Abstract】 In order to study the inter-harmonic characteristics of loop current in pantograph-catenary system(PCS) under periodic fluctuating load conditions, a large number of current-receiving experiments were conducted. Effects of static contact pressure, sliding speed and contact current on the inter-harmonic of loop current were analyzed. Both the fluctuation of contact resistance and pantograph arc are main reasons of generating inter-harmonic. The inter-harmonic distributes symmetrically with a special frequency interval from 0 Hz to 100 Hz, and the symmetrical center is 50 Hz. The special frequency interval is independent of both static contact pressure and contact current. However, it increases linearly with the increase of sliding speed. The amplitude of inter-harmonic firstly decreases then increases with the increase of static contact pressure. And it increases with the increase of contact current. These conclusions can be used to further study the current-receiving characteristics of pantograph-catenary system.更多还原