DCマルチパワーユニットの提案と小規模DCグリッドにおけるバス電圧の自律分散制御

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: 2023/08/01

タイトル(英語): Autonomous Decentralized DC Bus Voltage Control using DC Multi Power Units in DC Microgrid Applications

著者名: 吉田　直充（（株）日立製作所），菊池　輝（（株）日立製作所），嶋田　尊衛（（株）日立製作所），井出　一正（（株）日立パワーソリューションズ）

著者名(英語): Naomitsu Yoshida (Hitachi, Ltd.), Akira Kikuchi (Hitachi, Ltd.), Takae Shimada (Hitachi, Ltd.), Kazumasa Ide (Hitachi Power Solutions Co., Ltd.)

キーワード: 太陽光発電，DCグリッド，DCバス，DC電圧制御，自律分散制御，ドループ制御　　solar power，DC microgrid，DC bus，DC voltage control，autonomous decentralized control，droop control

要約(英語): A bidirectional onboard DC/DC converter that can be used to rapidly charge an electric vehicle (EV) or feed EV battery power to a DC microgrid based on application requirements is proposed. This system concept is labeled as an onboard fast battery charging EV (cEV). Interestingly, owing to the presence of the inbuilt quick EV charger, external high power chargers are not required for fast charging applications. The proposed autonomous control strategy may also aid in DC grid voltage stabilization within the permissible range of 360V to 400V when power is being transferred from a PV to DC bus by controlling the DC/DC converter for PV and the DC multi power unit (DCMPU) independently. The DCMPU can also control both the power or DC bus voltage based on system requirements. Next, a droop-based control is implemented in the DCMPU to avoid mutual interference in the controllers. Detailed simulation studies are performed in MATLAB/Simulink to demonstrate the effectiveness of the proposed system. Overall, the proposed system helps maintain DC bus voltage fluctuations within a permissible range.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.143 No.8 （2023）

本誌掲載ページ: 564-569 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/143/8/143_564/_article/-char/ja/