• 전기학회논문지
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• 제58권9호
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• pp.1651-1657
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• 2009

In this paper, restoration solution algorithm to improve reliability better than restoration system of DAS(Distribution Automation System) is proposed in IDMS(Intelligent Distribution Management System). A strategy of IDMS restoration system to improve reliability and efficiency is proposed by analysis restoration system in DAS. Restoration sequence algorithm, distributed restoration solution algorithm considering a characteristic and a suitable restoration solution algorithm in IDMS are proposed. In the case study, algorithms have testified with example distribution network by C language

• 전기학회논문지
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• 제56권4호
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• pp.660-668
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• 2007

In order to improve the efficiency of service restoration function in the current Distribution Automation System (DAS), in this paper it is proposed a more advanced and efficient service restoration approach using Multi-Agent technique based on distributed networks. In the current DAS, communication networks or protocol structures are centralized with communications between the central station and FRTU through 1:1 connection. In order to maintain the current systems and enhance the proposed Multi-Agent based service restoration scheme, a device of communication and intelligence, named MASX, is newly developed to make a FRTU as an agent to cooperate each others. the proposed system applied in a demo system for an distribution automation system and shows 8 times reduction of restoration time in restoration of blackouts.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 D
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• pp.761-763
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• 1997

As the power system network is enlarged and complicated gradually, the automation of power system network is essential to enhance the reliability and performance of the operation of power system. Distribution restoration is a major part of the automation. This paper proposes a new distribution restoration system to restore healthy blackout regions by the hierarchical cooperation with the substation automation systems. In proposed system, the range of restoration is extended to substations and the performance as well as the switching efficiency of restoration system is enhanced.

• 전기학회논문지
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• 제65권8호
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• pp.1317-1325
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• 2016

This paper identifies the issues of contingency analysis for restoration in distribution systems. Contingency analysis has been applied to transmission systems but not to distribution systems. The distribution system is different from transmission system. So it is hard to apply for existing contingency analysis to distribution system. In this paper, a new contingency analysis method for distribution systems is proposed. The proposed method is based on service restoration capability. It aims to minimize outage left after service restoration in case of a fault in advance. The method estimates the vulnerability which is represented by zone restoration index proposed in [1]. Applying the proposed method, operators could change the system so that it does not leave any outage left after restoration. Case study has been carried out on a five feeder system and its results show effectiveness of the method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 하계학술대회 논문집 A
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• pp.381-383
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• 2004

This paper presents for service restoration Abstract -in electric power distribution systems. The aim of the service restoration is an emergency control in distribution system to restore out-of service areas as soon as possible when a fault occurs in distribution system. For this reason, this paper presents a new service restoration strategy for multi-outage areas. Proposed algorithm consists of two methods. One is individual restoration scheme, the other one is integrated restoration scheme. The former determines restoration order of outage areas based on restoration index. If the former method can not generate a feasible restoration plan, the latter would try to find new configuration without overloaded section through tie exchange method.

• 한국철도학회논문집
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• 제12권5호
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• pp.819-828
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• 2009

본 연구에서는 효율적이고 신속한 철도사고처리를 위해 임시복구 표준화(code) 및 표준운영체계(안)을 제시하고 있다. 우선, 철도사고유형을 국내 외 철도사고유형별 피해종류로 재분류하였으며, 이를 관련분야, 복구대상, 사고위치의 3자리 표준화된 코드로 제시하였다. 또한, 임시복구 표준운영체계(안) 수립방법을 정립하고 표준화된 임시복구 유형별 최악의 경우(worst case)와 임시복구절차 수립을 위한 중요항목(event)을 도출하여 임시복구유형별 임시복구 표준운영절차를 제시하였다. 이러한 표준화(code) 및 표준운영절차는 철도사고 DB관리, 신속한 사고처리 및 피해최소화를 위한 철도사고 비상대응관리체계 구축에 중요한 역할을 담당할 수 있을 것이다.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2012년도 춘계학술발표회 초록집
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• pp.147-150
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• 2012

This study restoration worker for dispersion relay in R-Type fire alarm system. Restoration worker very good instrument for an fire system inspector. When inspector check for fire system someone need reset for fir system to normal state. This chain of action is frequent and troublesome. In this case, If we can automatic reset for fire system it's restoration worker. This paper settlement on the problem for reset fire system. Design, make grabber for restoration worker. The test offer proof possibility restoration worker.

• 대한전기학회논문지:전력기술부문A
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• 제51권7호
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• pp.333-340
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• 2002

To secure a service continuity is one of the most important mission in the ower distribution system operation. In this paper the necessary and sufficient condition to guarantee 100% service restoration capability for any fault on the system is reported. An evaluation methodology of the restoration capability(or restorability) is developed based on the developed restoration conditions. Applications of the developed concept to the system operation in the normal and emergency states, that would enhance the supply reliability of the system are described. They include enhancement of restoration capability adapting to load change, identification of best open switch and supervised switch positions.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1992년도 하계학술대회 논문집 A
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• pp.190-192
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• 1992

This paper introduces an expert system for the automation of power system restoration. We focus on following two points : a) Data Structure which can describe power system and ensure the efficient search and b) Restoration Strategy which performs faster black-out restoration with fewer switching operations and overload alleviation using sensitivity. Some examples are used to illustrate the capabilities of the proposed expert system.

• 조명전기설비학회논문지
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• 제18권1호
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• pp.98-104
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• 2004

본 논문에서는 사고나 계획정전 등으로 인한 건전 정전구간에 신속하게 전원을 공급하는 방안을 제시하였다. 제시한 부하복구방안은 연계개폐기로부터 공급피더 방향으로 계통을 역방향으로 탐색하고 탐색시 저장된 경로와의 조합을 이용하여 구해짐으로써 계통의 탐색공간이 대폭 줄어들게 되어 신속한 복구방안의 제시가 가능하다. 또한 공급 여유량을 미리 확보하는 2단계의 부하복구, 모든 구간에 대한 복구가 불가능한 경우 부하를 차단하는 방안 등이 포함되어 있으므로 광역정전이나 다중사고 및 중요수용가를 고려한 부하복구, 배전자동화시스템과 연계된 부하 복구에도 이용할 수 있다.