Design and Field Tests of an Inverted Based Remote MicroGrid on a Korean Island
Woo-Kyu Chae, Hak-Ju Lee, Jong-Nam Won and 2 more
Energies · 2015
doi:10.3390/en8088193 (opens in a new tab)
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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.
Abstract licence: CC BY
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