Coordinate control of distributed generations with power converters in a micro grid

Shinichi Kusagawa, Eisuke Masada, Jimpei Baba, Maasaaki Ohshima, Istvan Nagy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

For extensive utilization of distributed generation with the objectives of more efficientuse of energy and introduction of renew able energy sources, the construction of a micro grid at demand end is inevitable. The micro grid should operate independently and have a good neighbor relation with the power grid, which supplies base power to it. A coordinate control scheme of distributed generations is studied. It has three layers of structure. The integrated control system is quite similar to that of power system other than its scale. Because of the limited number of generations and customers, the variation of power unbalance between supply and demand is fast and large. To stabilize the system and maintain power supply quality, the micro grid is subdivided into local distribution network groups. The local group control system regulates generations inside it in coordination with other groups and transmits operational information in it to the integrated control system. Each controllable generation has its own control system and regulates its output with the command from the local group control system. The distributed generation on the market, including the battery energy storage, is generally connected to the network through the power converter system. Because it cannot autonomously follow the power variation, a novel control scheme should be incorporated into the control system of power converter system and the local level control. Their performances in operation of a micro grid are verified with simulations using EM TDC/PSCAD. The coordination between local group control systems for the load following control is under test in a model grid for experiment. A demonstration system is planned to construction this control scheme.

Original languageEnglish
Title of host publication2005 European Conference on Power Electronics and Applications
Publication statusPublished - Dec 1 2005
Event2005 European Conference on Power Electronics and Applications - Dresden, Germany
Duration: Sep 11 2005Sep 14 2005

Publication series

Name2005 European Conference on Power Electronics and Applications
Volume2005

Other

Other2005 European Conference on Power Electronics and Applications
CountryGermany
CityDresden
Period9/11/059/14/05

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Keywords

  • Converter control
  • Distributed power
  • Distribution of electrical energy
  • Renewable energy system

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kusagawa, S., Masada, E., Baba, J., Ohshima, M., & Nagy, I. (2005). Coordinate control of distributed generations with power converters in a micro grid. In 2005 European Conference on Power Electronics and Applications [1665580] (2005 European Conference on Power Electronics and Applications; Vol. 2005).