• 제목/요약/키워드: Power system operation

검색결과 5,459건 처리시간 0.03초

적정 공급신뢰도 확보를 위한 안정화장치 구성 및 설치운영 (Design, Implementation of the Bulk Power Stabilizing System to ensure the appropriate Power System Reliability)

  • 김창무;이효상;이승언;김석일
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 C
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    • pp.1510-1513
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    • 1999
  • Carried out simulation for yearly peak and March load time of the KEPCO Power System in 1999. Analysis of the problems in power system operation by powerflow, fault and stability study. Establishment of power system optimal operating plan by installation of power system stabilizer.

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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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직류 배전 시스템을 위한 전력 변환 모듈의 통합 운전 (Integrated Operation of Power Conversion Module for DC Distribution System)

  • 이희준;신수철;홍석진;원충연
    • 전력전자학회논문지
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    • 제19권3호
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    • pp.240-248
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    • 2014
  • It is DC power that Output of renewable energy being recently developed and researched. Also, demand of DC power will expect to proliferate due to increase of digital load. Thus, DC distribution system providing high quality of power and reliability has emerged as a new distribution system. If the conventional distribution systems are substituted by proposed DC distribution system, the output of renewable energy can be connected with distribution systems under minimum power conversion. Therefore, in the event of connection with DC load, it can construct an efficient distribution system. In this paper, the integrated parallel operation of power conversion module for DC distribution system is proposed. Also, this paper proposed modularization of power conversion devices for DC distribution system and power control for parallel operation of large capacity system. DC distribution system consists of three power conversion modules such as AC/DC power conversion module 2 set, ESS module 1 set. DC distribution system controls suitable operation depending on the status of the DC power distribution system and load. Integrated operation of these systems is verified by simulation and experiment results.

제주계통 풍력발전단지의 무효전력 특성 분석 (Analysis of Reactive Power Characteristic for Wind Farms in Jeju System)

  • 최영도;박영신;전동훈;윤기갑;박상호
    • 신재생에너지
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    • 제6권2호
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    • pp.19-26
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    • 2010
  • Experiences in wind farm operation are very limited in Korea, and the foundation for setting standards in power system connection is weak. Therefore, connection and operation standards for wind farms in other countries must be reviewed and power system operation criteria need to be established in order to set up connection standards and optimal operation plans according to the Jeju power system. In this study, reactive power control characteristics of a wind farm were analyzed using a wind farm model of the Jeju power system to propose power system connection operation standards for wind generation within the Jeju power system. Also, change in characteristics of the power system for the application of each reactive power control standard was confirmed, and the results were verified through trial tests arm was analyzed.

병렬운전 모델을 이용한 병렬운전 시스템의 운전 특성 (The Operation characteristics of the parallel operation system using the model for parallel operation)

  • 김성관;김수석;김왕곤
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2002년도 학술대회논문집
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    • pp.157-163
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    • 2002
  • Consideration for parallel operation in a high power system has been increased due to the advantages of parallel operation like as high productivity, simplicity of design, and redundancy of power. This paper discussed the parallel operation of DC-DC Converter, Which Can be used as a high power system, is studied. Based on the small signal model of DC-DC Converter, the simple and exact power stage model of parallel operation system is derived and the parallel operation system using current balance method for the uniform current distribution among the parallel operation system is discussed. To verify the high performance of the proposed DC-DC converter system for parallel operation, the simulation test of the parallel operation, which has 2 Converter modules, is accomplished.

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실시간 전력계통 운영을 위한 데이터 시각화에 관한 연구 (A Study on the Data Visualization for Real Time Power System Operation)

  • 조윤성;정진영
    • 전기학회논문지
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    • 제62권10호
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    • pp.1361-1367
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    • 2013
  • This paper describes and suggests the data visualization for real time power system operation based on energy management system. Because real time power system operation performs analysis of the vast amount of on-line data, the operators need intuitive data visualization to find out useful information in the big data. Especially, in emergency situation, the data visualization is able to assist the operators in handling the crisis quickly and efficiently. Therefore, this paper aims to improve displays of output of real time power system operation by visualizing on-line big data. Through this study, we can develop improved visualization technique for real time power system operation, which has highly readable displays of output and intuitive information.

휴전일정검토 프로그램 개발 (A Development Of An Outage Scheduling Program)

  • 이운희;주행로
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 추계학술대회 논문집 전력기술부문
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    • pp.30-32
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    • 2006
  • New building, reinforcement, maintenance and test of power equipments are always necessary in a power system. Our power system is getting old and the total power capacity is also getting large, so power equipment outages are getting often. Power euipment outages make less margine for a stable condition of a power system operation. Therefore, through overviews and countermeasures against the outage should be made in order to be in a stable operational conditions during the outage. We have too many outages over 300 per month in our power system. So, we can't have enough time to study our power system and to make countermeasures without a helping program. This program is designed to give various and appropriate informations necessary for an outage scheduling. By applying this program, we can raise the job efficiency high and spare the time spent. So we can afford to do through system studies and make good countermeasures. I think this program can contribute greately to power system stable operation.

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랩뷰를 이용한 실시간 전력계통 교육용 시뮬레이터 개발 (Design of Real-Time Power System Simulator for Education using LabVIEW)

  • 이규화;김일주;최준영;이송근
    • 조명전기설비학회논문지
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    • 제24권6호
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    • pp.177-182
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    • 2010
  • 전력계통은 첨단기술과 함께 발전하고 있다. 최근 전력계통은 새로운 기술개발, 전기설비 및 운영 방법으로 전력계통 운영이 복잡해지고 있다. 전기설비가 발전함에 따라 전력계통의 사고비율이 감소하였지만, 그에 따라 새로운 운영방법이 필요하다. 계통 운영방법이 복잡해짐에 따라 효율적으로 전력계통 운영자들을 훈련시키고 교육시키는 전력계통 시뮬레이터가 필요하게 되었다. 본 논문에서는 LabVIEW 프로그램의 TCP/IP 통신을 이용하여 실시간 전력계통 교육용 시뮬레이터를 제작하였다. 제작한 시뮬레이터는 실제 전력계통에서 일어나는 예측하지 못한 다양한 사건으로 교육자를 지도할 수 있게 제작하였다.

Carbon Free를 위한 도서지역용 독립전원계통의 모델링 및 운용알고리즘에 관한 연구 (A Study on the Modeling and Operation Algorithm of Independent Power System for Carbon Free)

  • 왕종용;김병기;박재범;김병목;김응상;노대석
    • 전기학회논문지
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    • 제65권5호
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    • pp.760-768
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    • 2016
  • Recently, as one of the policies for carbon free operation method of independent power system replacing diesel generator with renewable energy such as wind power and photovoltaic(PV) system has been presented. Therefore, this paper proposes an operation algorithm and modeling of independent power system by considering CVCF(constant voltage constant frequency) ESS(energy storage system) for constant frequency and voltage, LC(load control) ESS for demand and supply balancing and SVC(static var compensator) for reactive power compensation. From the simulation results based on the various operation scenario, it is confirmed that proposed operation algorithm and modeling may contribute stable operation and carbon free in independent power system.

풍력발전 출력 예측오차 완화를 위한 출력제한운전과 ESS운전의 경제성 비교 (Economic Comparison of Wind Power Curtailment and ESS Operation for Mitigating Wind Power Forecasting Error)

  • 위영민;조형철;이재희
    • 전기학회논문지
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    • 제67권2호
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    • pp.158-164
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    • 2018
  • Wind power forecast is critical for efficient power system operation. However, wind power has high forecasting errors due to uncertainty caused by the climate change. These forecasting errors can have an adverse impact on the power system operation. In order to mitigate the issues caused by the wind power forecasting error, wind power curtailment and energy storage system (ESS) can be introduced in the power system. These methods can affect the economics of wind power resources. Therefore, it is necessary to evaluate the economics of the methods for mitigating the wind power forecasting error. This paper attempts to analyze the economics of wind power curtailment and ESS operation for mitigating wind power forecasting error. Numerical simulation results are presented to show the economic impact of wind power curtailment and ESS operation.