• 作者： 黃慶連; 鄭健隆; 林清一; 葉進純
• 作者服務機構： 國立成功大學電機工程學系; 國立雲林工專電機工程科
• 中文摘要： 由系統暫態所引起的變壓器激磁湧入電流含有豐富的諧波。在變壓器二次側接有各種負載情況下，湧入電流之諧波分析與投入角度、負載型式、負載功率因數等有密切的關係。本文提出一種即時計算方法來評估變壓器湧入電流諧波。所提出的方法簡化了量測程序且可獲得很準確之結果。藉著實驗量測與即時計算，比較二者結果發現非常吻合。並從實例測試著手，詳細分析探討諧波對各種因素之相互關係。
• 英文摘要： The inrush current of transformers resulting from system transients is rich in harmonics. Undervarious load conditions on the transformer secondary, harmonics analysis is of great importance to theswitching on angles, load types, load power factors, and other factors. In this paper, a real time computa-tion method is proposed to estimate the harmonics in a transformer inruch current. The proposed methodsimplifies the measurement procedure and obtains very high accuracy results. By analog measurement andreal time computation, the results are compared with very close agreement. The relation of harmonics toall factors is investigated with detailed analysis of example tests.
• 中文關鍵字： inrush current; harmonic analysis; fast fourier transformation; real time measurement
• 英文關鍵字： --