Title |
A Study on the Series and Parallel Resonant Filters for Harmonic Currents Reduction of Nonlinear Loads |
Authors |
Kyung-Chul Kim ; Yun-Mo Kang ; Seung-Hyun Paik ; Jong-Uk Kim |
Abstract |
This paper characterizes typical nonlinear loads into two types of harmonic sources, i.e., harmonic voltage source and harmonic current source. A series resonant filter is very effective in harmonic reduction for harmonic voltage source type of nonlinear loads such as personal computer loads with smoothing dc capacitors. A parallel resonant filter is suited for current source type of nonlinear loads such as ac drives with smoothing dc reactors. General compensation characteristics and comparison of series and parallel resonant filters are given analytically and experimentally. Compliance with IEC Std 1000-3-2 has been evaluated for limiting harmonic distortion. |