煉鋼廠運轉所造成之電壓閃爍現象可有效應用無效電力補償設備予以改善，但若諧波改善不當而導致諧波放大時可能會混淆電壓閃爍現象，故本論文主要係探討諧波功率對電壓閃爍之影響。
傳統上係量測共同耦合點之 ，以評估電壓閃爍現象之嚴重性。但當共同耦合點有多重電壓閃爍源時，此傳統評估方式並無法明確判別各獨立電壓閃爍源於共同耦合點之 貢獻程度，有鑑於此本論文提出電流變動( )法，經煉鋼廠實際量測資料驗證可有效解決此一問題。

Arc furnace operation caused voltage flicker, a reactive power compensation device to be installed to improve it. However, a harmonic resonance results from the improper installation of the reactive power compensation device may alias the voltage flicker. Hence, in this thesis the effects of harmonic power to voltage flicker will be intensively surveyed.
Traditionally, the assessment of in point of common coupling is used to identify the severity of voltage flicker. If there are multiple flicker sources fed into point of common coupling, this method have difficulty in estimation of individual flicker contribution. Hence, an equivalent current variation method also is proposed to overcome this difficulty. Finally, the proposed method is vilified by using real data from arc furnace operation measurement.

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