基于遗传算法的高压直流断路器振荡回路参数计算

Calculation for High Voltage Direct Current Breaker Vibration Circuit Parameters Based on Genetic Algorithm

利用遗传(genetic algorithm,GA)算法对高压直流断路器振荡回路电流波形进行分析,提出对直流断路器振荡回路容抗、感抗和阻尼电阻的值进行在线参数估计,实现对直流断路器振荡回路性能的正确评估,并将GA算法与MATLAB中利用最小二乘法拟合的结果进行比较,指出GA算法在高压直流断路器参数估计与状态评估方面优于传统的方法,能准确计算实际参数。

This paper analyzes vibration circuit current wave of high voltage direct current breaker by using genetic algorithm and proposcs method for estimating online parameters including values of vibration circuit capacitive reactance, inductive reactance and damping resistance in order to realize correct estimation for vibration circuit performance of direct current breaker. It compares fitted results acquired by using GA algorithm and least square method and points out that GA algorithm is better in estimating high voltage direct current breaker parameters and its condition than traditional method which is able to correctly calculation practical parameters.