대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 하계학술대회 논문집 A
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- Pages.399-402
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- 2003
배전계통 전압/무효전력 보상을 위한 LTC변압기와 SC의 협조운전 알고리즘
Cooperation Algorithms of LTC and SC for Distribution Volt/Var Regulation
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Choi, Joon-Ho
(ChonNam National Univ.) ;
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Kim, Jae-Chul
(Soongsil Univ.) ;
- Nam, Hae-Kon (ChonNam National Univ.) ;
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Moon, Seung-Il
(Seoul National Univ.)
- 발행 : 2003.07.21
초록
In this paper, the on line volt/var control algorithms of the food Load Tap Changer (LTC) transformer and Shunt Capacitor(SC) are proposed for distribution volt/var regulation. In the existing volt/var control of the distribution substation, the voltage of feeders and var of distribution systems is mainly controlled by the LTC transformer tap position and on/off status of the shunt capacitor. The LTC and shunt capacitor bank has discrete operation characteristics and therefore it is very difficult to control volt/var at the distribution networks within the satisfactory levels. Also there is limitation of the operation times of the LTC and shunt capacitor bank because it is affects on their functional lifetime. The proposed volt/var control algorithm determine an optimal tap position of LTC and on/off status of shunt capacitors at a distribution network with the multiple feeders. The mathematical equations of the proposed method are introduced. Simple case study was performed to verify the effectiveness of the proposed method.
키워드