断流能力试验回路优化

Optimization of Breaking-Capacity Testing Circuits

在进行高压,特别是超高压断路器开断能力试验时,在试验回路中产生各种满足国际电工委员会(IEC)和国家标准的瞬态恢复电压(TRV)是一项相当困难的任务。本文介绍一种按TRV要求自动搜索试验回路的微分方程组中合适系数的优化方法,这种方法是用试验回路的伴随网络来计算试验回路的灵敏度。这样,就可使试验回路对不同的TRV要求,特别是电力部门提出的特殊试验条件更为灵活。

During the breaking-capacity testing ot HV, especially EHV, circuit-breakers, it is a quite difficult task to reproduce a variety of suitable transient recovery voltages (TRV), complying with IEC or national standards, in testing circuits. Based on the creation of testing-circuit sensitivity calculation with the adjoint network of testing circuit, an optimization method, which could search out the suitable coeffients of testing -circuit differential equation system according to the requirement of TRV automatically, is presented in this paper. Therefore testing circuits are more flexible for different TRV requirements, especially for special test conditions required by the utilities.