【摘要】 相控式消弧线圈是一种由晶闸管控制的随调式消弧线圈。为了研究滤波电路对其性能的影响,文中论述了带通滤波电路的相控式消弧线圈的运行特性,通过仿真分析、10kV高压现场模拟接地试验表明滤波电路能将谐波电流畸变率控制在限定范围内,但响应速度变慢,产生过零紊乱等,为此设计的控制策略可提高这类消弧线圈的补偿效果与安全运行。更多还原

【Abstract】 The phase-controlled arc-suppressing coil is a type of adjustable arc-suppressing coil controlled by TCR(Thyristor Controlled Reactor),being capable of the large adjustable range of current and the continuously adjusted compensation current.In this paper,the working characteristics of arc-suppressing coil controlled by TCR are demonstrated and the correctness of theoretical analysis is proved by the related simulation with ATP(Alternative Transient Process)and experiments on the simulated 10 kV power distribution network.It is indicated that the distortion ratio of harmonic currents can be controlled within the finite range by the filtering circuit,which,however,slowers the response speed of the circuit and produces the cross-zero disorder.The correspondent controlling strategy has been designed through an analysis of some key problems in controlling,greatly improving the compensation effect and operating safety.更多还原