Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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On-line Optimal EMS Implementation for Distributed Power System

  • Choi, Wooin (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Baek, Jong-Bok (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Cho, Bo-Hyung (School of Electrical Engineering and Computer Science, Seoul National University)
  • Published : 2012.11.23
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Abstract

As the distributed power system with PV and ESS is highlighted to be one of the most prominent structure to replace the traditional electric power system, power flow scheduling is expected to bring better system efficiency. Optimal energy management system (EMS) where the power from PV and the grid is managed in time-domain using ESS needs an optimization process. In this paper, main optimization method is implemented using dynamic programming (DP). To overcome the drawback of DP in which ideal future information is required, prediction stage precedes every EMS execution. A simple auto-regressive moving-average (ARMA) forecasting followed by a PI-controller updates the prediction data. Assessment of the on-line optimal EMS scheme has been evaluated on several cases.

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