一种计算双调谐交流电力滤波器参数的新方法.pdf

年第 期 冶 金 动 力 2014 12 总 第 178 期 METALLURGICAL POWER 1 供用电 一种计算双调谐交流电力滤波器参数的新方法 谢德华 （中冶南方工程技术有限公司技术研究院，湖北武汉 430223） 【摘 要】研究了一种获取双调谐交流电力滤波器电容和电感的方法，该方法根据设定的并联谐振电路的 谐振频率、第一谐振频率和第二谐振频率，计算串联谐振电路的谐振频率，根据串联谐振电路的谐振频率、并联 谐振电路的谐振频率、第一谐振频率和所述第二谐振频率，计算双调谐交流电力滤波器的第一电感、第一电容、 第二电感和第二电容。实验证明，此方法不需要解多元或一元四次方程，只需要按一元二次根与系数的关系列 出简明的表达式，就能迅速准确地计算出双调谐滤波器的各参数。 【关键词】电力滤波器；参数；计算；双调谐 【中图分类号】TN713 【文献标识码】A 【文章编号】1006-6764(2014)12-0001-04 A New Method for Calculating the Parameters of Double Tuned AC Power Filters XIE Dehua (WISDRI Engineering Research Co., Ltd., Wuhan, Hubei 430223, China) 【 】A method for obtaining the capacitance and inductance of double-tuned AC Abstract power filter is discussed in the paper. The method calculates the resonant frequency of the series resonant circuit according to the preset resonant frequency, the first and the second resonance frequencies of parallel resonant circuit; and calculates the first inductor, the first capacitor, the second inductor and the second capacitor of double-tuned AC power filter ac- cording to the resonant frequency of the parallel resonant circuit and the resonant frequency, first and second resonant frequencies of the series circuit. Experimental results showed that this method does not require solution of multiple or quartic equations but merely needs to list concise expression based on a quadratic relationship between roots and coefficients to quickly andaccuratelycalculate theparametersofdouble-tunedfilters. 【 】electricpower filter;parameter;calculate