Low-Voltage Bipolar-Type DC Microgrid for Super High Quality Distribution

被引：751

作者：

Kakigano, Hiroaki ^{[1
]}

Miura, Yushi ^{[1
]}

Ise, Toshifumi ^{[1
]}

机构：

[1] Osaka Univ, Div Elect Elect & Informat Engn, Osaka, Japan

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2010年 / 25卷 / 12期

关键词：

DC microgrid; distributed generation (DG); high-quality power; intentional islanding; three-wire dc distribution; DROOP CONTROL;

D O I：

10.1109/TPEL.2010.2077682

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Microgrid is one of the new conceptual power systems for smooth installation of many distributed generations (DGs). While most of the microgrids adopt ac distribution as well as conventional power systems, dc microgrids are proposed and researched for the good connection with dc output type sources such as photovoltaic (PV) system, fuel cell, and secondary battery. Moreover, if loads in the system are supplied with dc power, the conversion losses from sources to loads are reduced compared with ac microgrid. As one of the dc microgrids, we propose "low-voltage bipolar-type dc microgrid," which can supply super high quality power with three-wire dc distribution line. In this paper, one system for a residential complex is presented as an instance of the dc microgrid. In this system, each house has a cogeneration system (CGS) such as gas engine and fuel cell. The output electric power is shared among the houses, and the total power can be controlled by changing the running number of CGSs. Super capacitors are chosen as main energy storage. To confirm the fundamental characteristics and system operations, we experimented with a laboratory scale system. The results showed that the proposed system could supply high-quality power under several conditions.

引用

页码：3066 / 3075

页数：10

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