三单相H桥型APF主电路的分析

The Analysis of the Main Circuit of Three Single Phase H Bridge APF

对三单相H桥型有源电力滤波器主电路的运行原理和主要硬件的设计两部分进行了分析。对于主电路运行原理，包括谐波补偿的四种运行状态和直流侧电容预充电状态作了介绍；而对于主电路的硬件设计，介绍了几个主要硬件：IGBT、IPM、直流侧电容、滤波电感。

The analysis of the main circuit of Three Single Phase H Bridge APF is made in this paper. It could be divided two parts. For operation principle of the main circuit, it contains four operation states of harmonic compensation and the state of DC line capacitor pre-charing; in another hand for, hardware design of the main circuit, it introduces several main hardware： such as IGBT, IPM, DC line capacitor, filter inductance.