Configuration and control of a DC microgrid for residential houses

Author

Kakigano, H. ; Miura, Y. ; Ise, T.

Author_Institution

Div. of Electr., Electron. & Inf. Eng., Osaka Univ., Suita, Japan

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

DC microgrid is suitable for dc output type distributed generations and energy storages. In this paper, dc microgrid for residential houses is described. Electrical power through dc distribution line (Â± 170 V) can be converted into some proper ac or dc voltages by converters placed near loads. Each house has a cogeneration system such as gas engine or fuel cell. The outputs of those distributed generations are connected to dc distribution line, and the power from generations can be shared among residences. We constructed a small scale experimental system in our laboratory, and examined the fundamental characteristics of dc microgrid. The experimental results demonstrated that high quality power was supplied even when voltage sag occurred in the utility grid.

Keywords

cogeneration; distributed power generation; energy storage; power distribution control; power supply quality; cogeneration system; dc distribution line; dc microgrid; distributed generations; energy storages; fuel cell; gas engine; residential houses; utility grid; voltage sag; Analog-digital conversion; Cogeneration; DC generators; Distributed control; Distributed power generation; Energy storage; Engines; Fuel cells; Power generation; Voltage fluctuations; dc distribution; distributed generation; gas engine cogeneration; high quality power; microgrid;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009

Conference_Location

Seoul

Print_ISBN

978-1-4244-5230-9

Electronic_ISBN

978-1-4244-5230-9

Type

conf

DOI

10.1109/TD-ASIA.2009.5356837

Filename

5356837