αβ領域での制御系を含む電力変換器の安定性解析のための汎用2軸周波数特性解析法

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2021/11/01

タイトル(英語): General-Purpose Computation of Two-Axis Frequency Characteristics of Power Converter Circuit for Stability Analysis Controlled in αβ Frame

著者名: 兼子　晶誠（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 (Deptartment of Electrical Engineering, Doshisha University), Toshiji Kato (Deptartment of Electrical Engineering, Doshisha University), Kaoru Inoue (Deptartment of Electrical Engineering, Doshisha University)

キーワード: 小信号周波数解析，αβ領域，dq領域，電力変換システム，インピーダンス法　　small-signal frequency analysis，αβ frame，dq frame，power converter system，impedance method

要約(英語): Frequency characteristics for a converter are necessary to design circuit and control parameters and they are utilized, for example, for stability analysis by the impedance method. This paper proposes an automatic formulation and analysis method, which are based on a general-purpose simulation algorithm for the frequency analysis of an averaged power converter, based on node-connection and model characteristic information of circuit and control elements. The general equation formulation method is extended to be able to include circuits controlled in αβ frame and characteristic expressions with αβ or dq frame. As the first application example, a three-phase grid-following inverter with a digital sinusoidal controller based on the complex vector theory in αβ frame is analyzed for the frequency characteristics of the output admittances. The characteristics are utilized for stability analysis by the impedance method and the inverter is assured to have passive characteristics and to be stable. As the second example, a three-phase inverter is analyzed for its αβ and dq impedances. The proposed method is investigated for the computed results and it is validated.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.141 No.11 （2021） 特集：電気関係学会関西連合大会

本誌掲載ページ: 1129-1137 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/ieejeiss/141/11/141_1129/_article/-char/ja/