In chapter two, the traditional SHAPF and an improved SHAPF aiming at enhancing the compensation characteristics and reducing the APF power rating, are investigated and compared in terms of their structures, principles, and compensation characteristics.

• 第二章介绍了传统串联混合有源滤波器的拓扑结构、工作原理和滤波特性,重点分析了一种改进型拓扑的原理,它在逆变器和系统之间串入LC基波谐振电路,提高了滤波特性,降低了有源装置的容量。