方形波電圧を用いた変圧器周波数応答解析の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2023/09/01

タイトル(英語): Investigation of FRA for Transformer by using the Square Wave Voltage

著者名: 中嶋　高（東京電機大学先端科学技術研究科電気電子システム工学専攻），北　尊仁（東京電機大学先端科学技術研究科電気電子システム工学専攻），腰塚　正（東京電機大学先端科学技術研究科電気電子システム工学専攻），日髙　邦彦（東京電機大学先端科学技術研究科電気電子システム工学専攻）

著者名(英語): Takashi Nakajima (Tokyo Denki University), Ason Kita (Tokyo Denki University), Tadashi Koshizuka (Tokyo Denki University), Kunihiko Hidaka (Tokyo Denki University)

キーワード: 変圧器，周波数応答解析，FRA，方形波電圧　　transformer，frequency response analysis，FRA，square wave voltage

要約(英語): The frequency response analysis (FRA) of transformer has been expected to be a good method for diagnosing the transformer condition. The special measuring instrument is usually used for the FRA measurement. So, in this paper, a new method of FRA measurement using a general-purpose square wave source and the oscilloscope is proposed. FRA of this method is evaluated with the frequency response characteristic of the transformer input impedance. The procedures of this method are as follows. First, the square wave voltage is applied to a transformer and the input voltage and the input current at that time are measured with the oscilloscope. Next, the high order frequency components of voltage and current are calculated by Fourier series expansion. At last, high order transformer input impedance is calculated by doing division of the high order frequency component of the input voltage and the input current. Frequency response characteristics of the input impedance of the transformer are provided in the above-mentioned procedure. As the experiment that applied this method to a pole transformer was a good result, we report it.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.143 No.9 （2023）

本誌掲載ページ: 532-539 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/143/9/143_532/_article/-char/ja/