インピーダンス法による電力変換システムの安定性解析のための汎用周波数特性計算法

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2020/09/01

タイトル(英語): General-Purpose Computation of Frequency Characteristics of Power Conversion System for Stability Analysis by the Impedance Method

著者名: 兼子　晶誠（同志社大学 理工学部 電気工学科），大上　皓（同志社大学 理工学部 電気工学科），加藤　利次（同志社大学 理工学部 電気工学科），井上　馨（同志社大学 理工学部 電気工学科）

著者名(英語): Akinobu Kaneko (Department of Electrical Engineering, Doshisha University), Ko Oue (Department of Electrical Engineering, Doshisha University), Toshiji Kato (Department of Electrical Engineering, Doshisha University), Kaoru Inoue (Department of Electrical Engineering, Doshisha University)

キーワード: 小信号周波数解析，系統連系インバータ，DC-DCコンバータ，安定性解析，インピーダンス法，一般化ナイキスト安定判別法　　small-signal frequency analysis，grid inverter，DC-DC converter，stability analysis，impedance method，generalized Nyquist criterion

要約(英語): Stability analysis is necessary for designing power conversion systems to ensure proper execution of the designed operations. The impedance method is useful for the analysis and it requires input or output frequency characteristics of converters that are often difficult to derive manually and analytically. This paper proposes an automatic formulation and analysis method, which utilizes a general-purpose simulation algorithm for the frequency analysis of an averaged power converter, based on connection and model information of circuit and control elements. This method is generally applicable even to a converter with nonlinear elements, such as a multiplier as far as the objective system can be linearized at the operating point. As application examples, a buck converter and a grid-forming inverter with power control are analyzed for the frequency characteristics of input or output impedances, which are utilized for stability analysis by the impedance method.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.140 No.9 （2020）

本誌掲載ページ: 685-693 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/ieejias/140/9/140_685/_article/-char/ja/