煤矿有源滤波器改进滞环控制方法的研究

为满足煤矿变电站综合动态补偿谐波时需要准确、实时地补偿电网中瞬态变化的畸变电流的要求,在常规的滞环电流控制方法的基础上,提出了一种改进的滞环电流控制方法。通过增加输入电压补偿,可进一步提高电流跟踪的快速性和精确性,减小开关损耗。通过理论分析和仿真对比,验证了该改进方法可以提高有源滤波器的滤波性能。

Study of Improving Hysteresis Control Method of the Coal Mine Active Filter

To meet the requirements of coal mine substation at the integrated and dynamic compensating harmonic motion needs the accurate and real-time compensation of transient and distortion current in power system,based on the conventional control method of hysteresis current,a improving hysteresis current control method is put forward to further improve the speed and accuracy of current tracking and reduce the switching losses by increasing the compensation of input voltage.Through theoretical analysis and simulation comparison,the improving method is verified to improve the filtering performance of active filter.