• 제목/요약/키워드: Electric Power Corporation

검색결과 1,392건 처리시간 0.036초

설비 모델링 기술을 이용한 발전성능평가 시스템 구성방안 연구 (Development of Power Performance Evaluation System using Modeling Technology)

  • 이지훈;이인태;정남준;배중석;안영모
    • KEPCO Journal on Electric Power and Energy
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    • 제4권2호
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    • pp.81-88
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    • 2018
  • 발전소의 성능을 효율적으로 관리 및 유지하기 위한 발전소 성능평가는 매우 중요한 절차이다. 하지만 기존의 성능평가 방식은 엑셀 기반의 수작업 방식이다 보니 준비절차가 복잡하고, 범용성이 떨어지는 문제가 있었다. 이에 본 논문에서는 기존 성능평가 시스템의 문제점을 분석하고, 설비를 효과적으로 모델링하고 누락된 물성치를 계산하며, 이를 바탕으로 자동 지표계산을 수행하는 설비 모델러를 통해 성능평가의 범용성, 효율성 및 정확성을 높이는 방법을 기술하고자 한다.

765kV 변전소 시운전에 관한 고찰 (Consideration on the trial operation of 765kV substation)

  • 변강;정시환;박근원;이상면;최만식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 추계학술대회 논문집 전력기술부문
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    • pp.29-31
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    • 2002
  • Purpose of the 765kV trial operation conducted for the first time in our country are performance verification of domestic developed equipment(765kV M.Tr, GIS,etc) and extraction of problem in advance to commercial operation and cultivation of operation ability. The trial operation of 765kV substation was finished successfully under the positive supports of institutes. manufactures. and constructers. It is expected that extraction of problems in advance and accumulation of operation techniques through the trial operation of 765kV substation will be contributed largly to the realization of the without a hitch operation of 765kV system.

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Field Implementation of Voltage Management System (VMS) into Jeju Power System in Korea

  • Shin, Jeonghoon;Nam, Suchul;Song, Jiyoung;Lee, Jaegul;Han, Sangwook;Ko, Baekkyung;An, Yongho;Kim, Taekyun;Lee, Byungjun;Baek, Seungmook
    • Journal of Electrical Engineering and Technology
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    • 제10권3호
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    • pp.719-728
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    • 2015
  • This paper presents the results of field tests on Voltage Management System (VMS) using hybrid voltage control, which utilizes coordinated controls of various reactive power resources such as generators, FACTS and switched shunt devices to regulate the pilot bus voltage in a voltage control area. It also includes the results of performance test on RTDS-based test bed in order to validate the VMS before installing it in Jeju power system. The main purpose of the system is adequately to regulate the reactive power reserve of key generators in a normal condition with coordination of discrete shunt devices such as condensers and reactors so that the reserves can avoid voltage collapse in emergency state in Jeju system. Field tests in the automatic mode of VMS operation are included in steady-states and transient states. Finally, by the successful operation of VMS in Jeju power system, the VMS is proved to effectively control system voltage profiles in steady-state condition, increase system MVAR reserves and improve system reliability for pre- and post-contingency.

IEC 61850기반 IED대상 제어 적합성 시험에 관한 연구 (Study on the control conformance testing of IEC 61850 based IED)

  • 장병태;이남호;김지희;김병헌;심응보
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 추계학술대회 논문집 전력기술부문
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    • pp.122-124
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    • 2008
  • Korea Electric Power Research Institute has being carried out an IEC 61580 communication service test on IED trial products developed related to power IT project "The verification of Performance of the Substation Automation System and Its Field Test". This paper describes control testing, one of the IEC 61850 conformance testing items, which consists of DO, enhanced DO, SBO and enhanced SBO with a number of test cases.

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IEC 61850 대상 IED GOOSE 적합성 통신 시험에 관한 연구 (Study on the GOOSE Conformance Testing of IEC 61850 based IED)

  • 장병태;이남호;김지희;김병헌;심응보
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.239-240
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    • 2008
  • Korea Electric Power Research Institute has being carried out an IEC 61580 communication service test on IED trial products developed related to power IT project, "Development of Prototype for Advanced Substation Automation System based on the Digital Control Technology". This paper describes GOOSE testing, one of the IEC 61850 conformance testing items, which consists of 14 publish and subscribe test cases.

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IEC 61850기반 IED 대상 리포트 적합성 시험에 관한 연구 (Study on the Report Conformance Test of IEC 61850 based IED)

  • 이남호;장병태;김지희;송인준;안용호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.241-242
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    • 2008
  • Korea Electric Power Research Institute has being carried out an IEC 61580 communication service test on IED trial products developed related to power IT project, "The verification of Performance of the Substation Automation System and Its Field Test". This paper presents reporting services of IEC 61850-8-1 and related UCA Test procedures, reporting test items are widely divided into unbuffered report and buffered report and this paper is dealing with unbuffered report.

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지구온난화 가스 배출 감소를 위한 장기 전원개발계획 전략 (Long-Term Generation Expansion Strategies for the Reduction of $CO_2$ Emission in Korea)

  • 김광인;박종배;김교흥;이상철;박권식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 D
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    • pp.1083-1087
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    • 1997
  • Every effort is now being exerted in industrialized and developing countries to reduce emission of greenhouse gases from electric power sector. In this paper, we provide supply-side resource mix strategies in the long-term generation expansion planning under the expected greenhouse gas regulations. Under the environmental regulations, we explore the least-cost generation expansion plan of Korea and determine the composition of future resource mixes. Our analysis is performed on the basis of the revised WASP package which can evaluate emission of carbon dioxide from each power plant. The evaluation process of carbon dioxide emissions, which can consider the efficiency and operating conditions of each generator simultaneously, has been incorporated into the probabilistic production cost simulation module of WASP.

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재귀 베이시안 추정을 이용한 회전기기 진단 (Diagnostics of Rotating Machinery using Recursive Bayesian Estimation)

  • Oh, Joon-Seok;Sohn, Seok-Man;Kim, Hee-Soo;Lee, Seung-Cheol;Bae, Yong-Chae
    • KEPCO Journal on Electric Power and Energy
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    • 제6권1호
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    • pp.49-52
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    • 2020
  • Since power plant is an important system to provide electricity, it is necessary to monitor it in order to operate safely. Much information related with machine diagnosis exists in written form instead of digital data. So, it causes difficulties of analyzing and finding solutions. Rulebased expert system can provide flexible and effective solutions to users. In this paper, Recursive Bayesian Estimation is applied in order to increase accuracy of solutions.