无变压器型并联混合有源滤波器设计及应用

将有源滤波器和无源滤波装置结合起来构成混合有源滤波器是当今的发展趋势，既弥补了无源滤波装置的固有缺陷，又能充分发挥有源滤波器的优势。该文对无变压器型混合并联有源滤波器的设计原则进行了研究，提出了具体的设计方法以及电感值和直流母线电压之间的关系。同时，分别给出了混合有源滤波进行补偿负载电流谐波和阻尼电网电压谐波放大这两种不同应用时的控制策略，对其滤波和阻尼特性进行了详细的分析。为了改善混合有源滤波性能，在控制策略中引入了广义积分控制器。实验结果证明了所提出的混合并联滤波装置具有优异的性能。

Design and Application of Transformerless Shunt Hybrid Active Power Filter

Active power filter (APF) and passive filter (PF) combining to hybrid active power filter (HAPF) is the trend, which make up the inherent shortcomings of passive filtering devices and can make good use of the advantages of active power filters. This article makes researches on design of hybrid parallel active power filter, presents the detailed design method and the relation between inductor and dc-voltage. Meanwhile, this paper purposes two kinds of control strategies of HAPF for compensation current harmonic and damping voltage harmonic propagation, analyses its filtering and damping performance in detailed. In addition, generalized integrator is introduced to the control to improve the performance of HAPF. The experimental results validate that the hybrid active power filter has outstanding performance.