閉ループの安定性と安定余裕を保証するNCbTの提案

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: 2019/04/01

タイトル(英語): Proposal of NCbT Guaranteeing Closed-Loop Stability and Stability Margins

著者名: 伊達　宗充（三重大学），弓場井　一裕（三重大学），矢代　大祐（三重大学），駒田　諭（三重大学）

著者名(英語): Munemitsu Date (Mie University), Kazuhiro Yubai (Mie University), Daisuke Yashiro (Mie University), Satoshi Komada (Mie University)

キーワード: データ駆動型制御器設計法，NCbT，ナイキスト軌跡，安定制約，安定余裕　　data-driven controller design method，NCbT，Nyquist diagram，stability constraint，stability margin

要約(英語): The Noniterative Correlation-based Tuning (NCbT) is known as one of the data-driven controller design methods. The NCbT guarantees closed-loop stability based on the small-gain theorem, which is a sufficient condition for closed-loop stability. As the result, the designed control performance might be conservative. This paper proposes the new stability constraint based on the Nyquist stability criterion to improve conservativeness for control performance. By improvement of conservativeness, the control system could reduce the stability margins, gain margin and phase margin. In order not to achieve low stability margins, the constraint for stability margin is additionally proposed. Since the gain and the phase margins are still commonly used indices for stability margins in industries, the direct designation of the gain and the phase margins in data-driven approach is highly appreciated. The effectiveness of the proposed constraints for stability and stability margins are confirmed by numerical simulations.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.139 No.4 （2019） 特集：スマートシステムと計測・制御技術

本誌掲載ページ: 460-468 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/139/4/139_460/_article/-char/ja/