【摘要】 基于可控硅投切电容补偿的概念 ,提出了一种新型消弧线圈补偿装置 ,即查表式可控硅投切电容式自动消弧线圈 ,其工作原理为预先将补偿电流制成表格写入内存 ,在发生故障时很快切换到谐振状态附近。介绍了整个装置的设计方法 ,包括消弧线圈的参数计算和控制电路的结构设计。理论分析及 6kV系统实践表明 ,这种新型消弧线圈调节范围宽 (2 5～ 5 0A)、响应速度快 (<5个周波 )、伏安特性线性度好 ,无谐波干扰等。更多还原

【Abstract】 Based on thyristor series capacitors (TSC), this article presents a novel set of Petersen coil, that is ,by using TSC based on table look-up technique ,the operating principle is presented as well. It saves table of compensated current into memory preliminarily, thus it can be switched to right position when fault occurs. IN addition the design method is introduced in this article, including the calculation of parameters and the diagram of control unit. Theory analysis and experiments (for 6kV system) proved that this new type Petersen coil has wider adjustable range (25A～50A) , more rapid response speed( less than 5 periods), better linearity of C-V characteristic and less harmonic disturbance. Thus its application has a good prospect in improving the safety and reliability of the power distribution system, and also the economic benefits to the society.更多还原