摘要
通过理论推导，发现当电力滤波器中的基波电流和谐波电流的比为定值时，滤波电容的过电压系数和过电流系数是与之相对应的确定值。根据这一原理，作者经过计算，制定了四个相应的表格，通过查表，便可以简捷地选择出滤波器的参数．
After theoretical analysis, it is found that if the ratio of the fundamental harmonic current to the harmonic one is definite in the power filter, then both the overvoltage and overcurrent factors are correspondingly definite. Accordingly four related tables are arranged after calculation. Hence the filter's parameters can be simply determined by consulting the tabular values.
