A Study on the Modeling of the 154 kV Power System and the Prevention of Reverse Transmission in the Incheon Airport Area

초록

Yeongjongdo Island, where Incheon Airport is located, has six 154 kV substations, including Yeongjong, Jungsan and Eurwang substations, which are under the control of Korea Electric Power Corporation (KEPCO), and A, B and C substations, which are under the control of Incheon Airport Corp. Since Incheon Airport Corp. is not a district power supplier, it cannot supply power to KEPCO. Therefore, Incheon Airport Corp. has to pay the electricity bill, including the unused electricity, when the reverse transmission occurs. When the load of Eulwang substation, which is located at the end of the system, increases, reverse transmission of power from C to Eulwang substation may occur. To prevent reverse transmission power, power flow analysis and countermeasures are required. In this paper, ETAP, a power system analysis program, was used to present the modeling of six 154 kV substations and transmission lines in Yeongjongdo area, and to confirm the conditions and preventive measures for reverse power transmission. Copyright © The Korean Institute of Electrical Engineers.

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