アクティブフィルタを用いた電圧・電流ベクトル軌跡利用高調波発生源探索法

抄録

Recently, many power electronic equipments are successfully employed in various field for their high efficiency operation, saving energy, etc. However, these produce some harmonic current, which flow into electric power system. As a result, it is clear that these harmonic current makes the quality of electric power inferior. Then it is important to estimate of harmonic source of power system. Then we propose a new approach to utilize active filter, installed in it on purpose to suppress the harmonic current. Our proposed methods are able to estimate harmonic source of power system by manipulating the active filter and analyzing the operating data. The usefulness of the proposed approach is confirmed by experiments.