AC voltage hybrid filter

摘要

The terminal voltage series type active power filter is developed. The filter reduces output voltage harmonics in a wide range of load. It is effective for liner and non-linear load from no load to full load operation. The filter consists ofpassive LC component and H-transistor bridge as active part. The dc link of the bridge is supplied from ac supply system. Control concept is based on constant average dc link voltage. Theory of the filter operation and results of simulation study arepresented for cases of linear and non-linear loads.