太陽電池用部分影補償器を統合したPWMコンバータ

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: 2017/03/01

タイトル(英語): PWM Converter Integrating Voltage Equalizer for Photovoltaic Panels under Partial Shading

著者名: 鵜野　将年（茨城大学工学部電気電子工学科），久木田　明夫（宇宙航空研究開発機構）

著者名(英語): Masatoshi Uno (Department of Eectrical and Electronics Engineering, Ibaraki University), Akio Kukita (Japan Aerospace Exploration Agency)

キーワード: 太陽電池パネル，直列共振型倍電圧整流回路，統合型コンバータ，部分影，PWMコンバータ　　photovoltaic panel，series-resonant voltage multiplier，integrated converter，partial shading，PWM converter

要約(英語): Partial shading on a photovoltaic (PV) panel comprising of multiple substrings connected in series leads to major issues, such as decreased power generation and occurrence of multiple power point maxima. Various PV equalizers have been proposed to preclude partial shading issues. However, system complexity increases because of the addition of PV equalizers, and circuits are prone to complexity because each PV equalizer contains switches. This study proposes a single-switch PWM converter integrating a PV equalizer using a series-resonant voltage multiplier (SRVM) for PV panels under partial shading. A PWM converter and PV equalizer can be integrated into a single unit, which decreases the switch count, achieving system- and circuit-level simplifications. Detailed operation analysis was performed for the SRVM, using which a dc equivalent circuit was mathematically derived. Experimental tests using a prototype for three substrings connected in series were performed with solar array simulators. The integrated converter successfully precluded the occurrence of multiple power point maxima and significantly improved the extractable maximum power as compared to that without equalization, demonstrating its efficacy.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.137 No.3 （2017） 特集：平成28年産業応用部門大会

本誌掲載ページ: 274-281 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/137/3/137_274/_article/-char/ja/