瞬時値解析のための三巻線変圧器の磁気回路モデルにおける巻線間漏れインダクタンスの模擬方法
瞬時値解析のための三巻線変圧器の磁気回路モデルにおける巻線間漏れインダクタンスの模擬方法
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: 2021/02/01
タイトル(英語): Leakage Inductance Representation for a Magnetic Circuit Model of Three-Winding Transformers for Electromagnetic Transient Analysis
著者名: 米澤 力道((一財)電力中央研究所 エネルギーイノベーション創発センター)
著者名(英語): Rikido Yonezawa (Energy Innovation Center, Central Research Institute of Electric Power Industry (CRIEPI))
キーワード: 変圧器モデル,短絡試験,数値不安定,鉄心構造_x000D_ transformer models,short circuit test,numerical instability,iron-core topology
要約(英語): In order to study electromagnetic transient phenomena occurring in power systems such as inrush currents or ferroresonance, an accurate and practical three-winding transformer model is required because the power system to be studied includes three-winding transformers in many cases. Although a star-circuit representation (Steinmetz's equivalent circuit model) is often used for these kinds of studies, it sometimes causes numerical instability because its magnetizing circuit representation is inappropriate. A magnetic circuit model considering iron-core topology is capable of eliminating the problem. However, the conventional three-winding magnetic circuit model does not match the leakage inductance measurements (short circuit tests) of the transformer to be represented. In this paper, we develop the three-winding magnetic circuit model which can match the leakage inductance measurements by making use of mutually coupled magnetic resistances. As a result of verification using a 500 VA single-phase three-winding transformer, it is indicated that the leakage inductance calculated by the developed model are in good agreement with those obtained by the leakage inductance measurements of the test transformer.
本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.141 No.2 (2021) 特集:令和2年電力・エネルギー部門大会
本誌掲載ページ: 67-78 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/141/2/141_67/_article/-char/ja/
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