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在分析当前国内外电力有源滤波器的基础上 ,根据电力有源滤波器的发展动态 ,提出了一个大功率串联混合型有源滤波器的设计方案。该方案主要针对大容量谐波补偿高次谐波时面临器件开关频率与容量之间的矛盾 ,提出采用多重化电路拓扑方案 ,将容量小但开关速度较快的逆变器并联以满足容量和开关速度的要求。提出了一种新型的检测负载电压的方法 ,给出了其主要电路的具体设计方案
Based on the analysis of the current active power filter at home and abroad, according to the development of active power filter, a design scheme of high power series hybrid active power filter is proposed. This scheme mainly aims at the contradiction between the switching frequency and the capacity of the device when the large-capacity harmonic compensation high-order harmonic wave, and proposes to adopt the multiple circuit topology scheme to connect the inverters with small capacity but fast switching speed to meet the requirements of capacity and Switching speed requirements. A new method of detecting load voltage is proposed. The design of the main circuit is given