直流給電系におけるコンバータのフィードフォワード制御による受動性に基づく安定化法

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: 2021/09/01

タイトル(英語): Passivity-Based Stabilization of Converter in DC Power Supply System using Feedforward Control

著者名: 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），船木　隆史（同志社大学 理工学部 電気工学科），高井　久就（同志社大学 理工学部 電気工学科）

著者名(英語): Toshiji Kato (Department of Electrical Engineering, Doshisha University), Kaoru Inoue (Department of Electrical Engineering, Doshisha University), Takashi Funaki (Department of Electrical Engineering, Doshisha University), Hisanari Takai (Department of El

キーワード: DC-DCコンバータ，直流給電系，受動性に基づく制御，フィードフォワード制御，安定性解析，インピーダンス法　　DC-DC converter，DC power supply system，passivity-based control，feedforward control，stability analysis，impedance method

要約(英語): This paper proposes a passivity-based stabilization control of a converter in a DC power supply system using feedforward control to improve output frequency impedance characteristics that satisfy the Nyquist stability criterion. The principle is that the output impedance is designed to be passive, and the system is sufficiently stable for any filter impedances. The new design principle for the proposed stabilization method consists of four steps. First, the state feedback control gains with a mitigated integral compensator are designed to possess a good response characteristic according to the optimal control. The designed characteristic of the output impedance may not be passive at a lower frequency band due to an essential characteristic of an integral compensator. Second, the integral characteristic is modified and a resistive characteristic is added to the band by a new feedforward control design based on a fitting method to make the total characteristic passive and to ensure stability. Third, the correction coefficients are tuned to eliminate a deviation between the measured and reference output voltage values at transient operations. Finally, the system passivity is re-checked, and a resistive characteristic is re-added using the feedforward control design if a non-passive band exists. The effectiveness of the proposed method to render the system passive and stable is investigated and validated using simulated and experimental results.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.141 No.9 （2021）

本誌掲載ページ: 738-746 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/141/9/141_738/_article/-char/ja/