变电站谐波抑制与无功补偿的大功率混合型电力滤波器

阐述了一种用于高电压变电站谐波抑制与无功补偿的大功率混合型电力滤波器。该系统包括无源滤波器和有源滤波器两部分，其中有源电力滤波器能同时补偿大容量变电站的功率因素和电流谐波。文章提出了大功率混合型电力滤波器的一种配置，讨论了其工作原理，给出了无源滤波器的设计和有源滤波器的谐波电流注入分析。阐述了有源滤波器中基于DSP的数字控制器。最后，仿真结果和实际工程应用都证明这个系统有着良好的无功补偿和谐波滤波性能。

HIGH-CAPACITY HYBRID POWER FILTER FOR HARMONIC SUPPRESSION AND REACTIVE POWER COMPENSATION IN THE POWER SUBSTATION

A high-capacity hybrid power filter for harmonic suppression and reactive power compensation of high-voltage power substation is proposed. The proposed system is composed of the passive power filter and active power filter, which is able to compensate power factor and current harmonic simultaneously for the high-capacity power substation. A kind of configuration of high-capacity hybrid power filter has been proposed, the principles of operation are discussed, the design of passive power filter and analysis of injecting harmonic current by active power filter are given. The digital controller based on DSP for the active power filter is presented. Finally the results of simulation and industrial application are given to verify that the proposed system has good characteristic of reactive power compensation and harmonic filter.