电力滤波器参数的优化选择

本文从电力滤波器参数选择涉及到的技术指标、安全指标出发确定单调谐滤波器中电容器的额定电压,单调谐滤波器组的容量和最优分配各单调谐滤波器的容量,电抗器的偏谐振率以及使滤波效益最佳的滤波电阻。确定出高通滤波器的容量,截止频率、品质因数和电容器的额定电压。以上所有参数的选择已编成程序,并能在程序中进行多方案比较、实例分析。

Optimum Choice of Parameters in Power Filters

In this paper, an optimuum choice method of parameters in electric power filters is proposed. The parameters determined are rated voltage in their capacitors, size of capacitors and optimal coordination in a group of single-tnued electric power filters. The parameters also comprise their optimal partial resonance ratio and resistance making electric power filters have optimal filter efficiency. The method proposed in the paper is accorded with their technical indexes and safety constraints. The technical indexes are harmonic voltage, harmonic current and fundamental reactive power output. Overvoltage, overcurrent and balance of size in their capacitors are safety constraints. Cut - off frequency, quality factor, size and rated voltage in second high pass band filters also can be solved via the method proposed in the paper. The choice of all of the above parameters has been programmed and can be compared in the software. The software block and a sample example are listed in the paper.