Design and Field Tests of an Inverted Based Remote MicroGrid on a Korean Island

Woo-Kyu Chae, Hak-Ju Lee, Jong-Nam Won, Jung-Sung Park and Jae-Eon Kim
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Woo-Kyu Chae: Research Institute, Korea Electric Power Corporation, Daejeon 305-760, Korea
Hak-Ju Lee: Research Institute, Korea Electric Power Corporation, Daejeon 305-760, Korea
Jong-Nam Won: Research Institute, Korea Electric Power Corporation, Daejeon 305-760, Korea
Jung-Sung Park: Research Institute, Korea Electric Power Corporation, Daejeon 305-760, Korea
Jae-Eon Kim: School of Electrical Engineering, Chungbuk National University, Chungbuk 361-763, Korea

Energies, 2015, vol. 8, issue 8, 1-18

Abstract: In this paper, we present the results of an economic feasibility study and propose a system structure to test and maintain electrical stability. In addition, we present real operation results after constructing a remote microgrid on an island in South Korea. To perform the economic feasibility study, a commercial tool called HOMER was used. The developed remote microgrid consists of a 400 kW wind turbine (WT) generator, 314 kW photovoltaic (PV) generator, 500 kVA × 2 grid forming inverter, 3 MWh lithium ion battery, and an energy management system (EMS). The predicted renewable energy fraction was 91% and real operation result was 82%. The frequency maintaining rate of the diesel power plants was 57% but the remote microgrid was 100%. To improve the operating efficiency of the remote microgrid, we investigated the output range of a diesel generator.

Keywords: microgrid; wind turbine; remote; island; hybrid power system; battery; HOMER; feasibility study (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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