• The Transactions of the Korean Institute of Electrical Engineers A
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• v.48 no.11
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• pp.1429-1433
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• 1999

This paper proposes the FACTS site selection method using subtransmission system reduction. A general method which uses the sensitivity of the variation in voltage and reactive power has been used to determine the location of shunt type FACTS device, but there is a difficulty to finding a proper location due to the overestimation of the effect of sub-transmission systems. Therefore, there is a need to reduce sub-transmission system for finding an effective location of shunt type FACTS devices such as SVC(Static Var Compensator), STATCOM(Static Synchronous Compesator), and so on.

• Proceedings of the KIEE Conference
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• 1999.07c
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• pp.1302-1304
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• 1999

This Paper Proposes the FACTS site selection method using subtransmission system reduction. A general method which uses the sensitivity of the variation in voltage and reactive Power has been used to determine the location of shunt type FACTS device, but there is a difficulty to find a proper location due to the overestimation of the effect of sub-transmission systems. Therefore, there is a need to reduce sub-transmission system for finding an effective location of shunt type FACTS devices such as SVC(Static Var Compensator), STATCOM(Static Synchronous Compesator), and so on.

• Proceedings of the KIEE Conference
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• 1997.07c
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• pp.933-935
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• 1997

This paper presents a new approach to dispersed generation installation planning based on a Hereford Ranch Algorithm in a subtransmission system. A method to optimally locate dispersed generations in a meshed network for maximizing the potential benefits is outlined using Hereford Ranch Algorithm and its improvement in this paper. The benefit expressed as a performance index can be minimization of losses. The proposed method was tested for several sample power systems.

• Proceedings of the KIEE Conference
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• 1993.07a
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• pp.205-207
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• 1993

Distribution planning requires comprehensive knowledge about not only distribution but also transmission/subtransmission system expansion plan. At the same time, distribution planning is very time consuming and a series of routine job which involves a lot of experience and efforts of planning engineers. Since the quality of distribution planning depends upon the ability of planning engineers, the economy of investment should be taken into consideration. The object of this study is to establish a computerized distribution planning system which helps distribution engineers finding a new system expansion plan. It provides the engineers with at optimal system expansion plan which satisfies the condition of both reliability and economy.

• Proceedings of the KIEE Conference
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• 1989.11a
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• pp.220-223
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• 1989

Over the last decade or so, there has been an increase in activity devoted to the development of renewable resources for generating electric energy. Many of these generators are small and can only be economically connected to the distribution system or to ths subtransmission system. Those which involve storage, a secondary source of energy, can provide a means to achieve more efficient use of existing generating plant. Such systems are known collectively as Dispersed Storage and Generation devices, or DSGs. So, in this paper various operation patterns for Battery Energy Storgy System which is considered as one of DSG, are examined.

• Proceedings of the KIEE Conference
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• 1989.11a
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• pp.216-219
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• 1989

Over the last decade or so, there has been an increase in activity devoted to the development of renewable resources for generating electric energy. Many of these generators are small and can only be economically connected to the distribution system or to ths subtransmission system. Those which involve storage, a secondary source of energy, can provide a means to achieve more efficient use of existing generating plant. Such systems are known collectively as Dispersed Storage and Generation devices, or DSGs. So, in this paper, for uninterruptable service in one bank outage in 154/22.9KV substation, the proper capacity of DSGs is examined through the configuration and the reliability.