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http://dx.doi.org/10.7840/kics.2017.42.4.932

DER Energy Management System for Optimal Management of Grid-Connected Microgrids  

Choi, Jongwoo (Electronics and Telecommunications Research Institute IoT Research Division)
Shin, Youngmee (Electronics and Telecommunications Research Institute IoT Research Division)
Lee, Il-Woo (Electronics and Telecommunications Research Institute IoT Research Division)
Abstract
This paper presents the structure of an energy management system for distributed energy resources of a grid-connected microgrid. The energy management system of a grid-connected microgrid collects information of the microgrid such as the status of distributed energy resources and the time varying pricing plan through various protocols. The energy management system performs forecasting and optimization based on the collected information. It derives the operation schedule of distributed energy resources to reduce the microgrid electricity bill. In order to achieve optimal operation, the energy management system should include an optimal scheduling algorithm and a protocol that transfers the derived schedule to distributed energy resources. The energy management system operates as a rolling horizon controller in order to reduce the effect of a prediction error. Derived control schedules are transmitted to the distributed energy resources in real time through the international standard communication protocol.
Keywords
microgrid; DER; EMS; optimal control; rolling horizon;
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Times Cited By KSCI : 3  (Citation Analysis)
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