昇圧チョッパと連系インバータの協調制御を用いた電灯動力共用結線用ソーラーパワーコンディショナ

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: 2016/09/01

タイトル(英語): A New PV Converter for Grid Connection through a High-Leg Delta Transformer Using Cooperative Control of Boost Converters and Inverters

著者名: 山口　大輝（東京工業大学 工学院電気電子系），藤田　英明（東京工業大学 工学院電気電子系）

著者名(英語): Daiki Yamaguchi (School of Engineering-Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Hideaki Fujita (School of Engineering-Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)

キーワード: 系統連系インバータ，電灯動力共用結線変圧器，ソーラーパワーコンディショナ，PWMインバータ　　grid-connection inverters，high-leg delta transformers，PV converters，PWM inverters

要約(英語): This paper proposes a new high-efficiency PV converter for grid connection through a high-leg delta transformer, which is composed of a symmetrically-connected boost converter and three half-bridge inverters. One of the three half-bridge inverters is connected to the boost converter, and the others are directly connected to the PV terminals. This circuit configuration enables to reduce the power losses in both boost converter and inverter. This paper also proposes a new cooperative control method between the symmetrically-connected boost converter and inverter. The control method can reduce the average switching frequency to 75% of that in a conventional one, resulting in a great reduction in switching power loss. Experimental results show that the proposed circuit improves its European efficiency from 91.6% to 94.5%.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.136 No.9 （2016）

本誌掲載ページ: 655-661 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/136/9/136_655/_article/-char/ja/