• 제목/요약/키워드: Electric Service

검색결과 706건 처리시간 0.034초

An Improved Service Restoration Algorithm under Consideration of Abnormal Conditions in Distribution Automation Systems

  • Cho, Namhun;Kim, Insung;Lee, Sungwoo
    • KEPCO Journal on Electric Power and Energy
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    • 제1권1호
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    • pp.47-54
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    • 2015
  • The most important function in distribution automation system (DAS) is the service restoration. KEPCO's current service restoration provides a very effective restoration service. However, it has been developed without the consideration of unexpected abnormal conditions that may occur while processing the sequence of switching operations. The objective of this paper is to provide practical service restoration schemes under consideration of abnormal conditions. The proposed service restoration schemes have been integrated to a branch office (B/O) in KEPCO. The proposed method strongly supports the conventional service restoration and adds to its value.

Development of Value-Added Service Systems Based on AMR Data in Power Industry

  • Kim, Sun-Ic;Jang, Moon-Jong;Oh, Do-Eun;Ko, Jong-Min;Yu, In-Hyeob;Lee, Jin-Ki;Yang, Won-Chul;Kim, Jin-Cheol
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2005년도 ICCAS
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    • pp.1387-1390
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    • 2005
  • Recently, foreign utilities emphasize the importance of the value-added services based on Information Technology(IT) as one of the strategic technologies for establishing a new power system in the future digital society. They develop many different types of the value-added services and apply the systems for customer. In domestic case, the data from the Automatic Meter Reading (AMR) System is used only for calculating the tariffs. Data from the AMR system can be strategic assets for utilities to provide the value-added services for customer. Development of the value-added services for utilities and customer needs processing and managing the AMR data. In this paper, the energy consulting service, which is adequate to new power system environment, is suggested for development of the value-added services. The application of the suggested service will bring the effect of reducing the monthly bill for customer. Also the service will give not only the effective demand side management(DSM) and load control, but also reduction of the investment for utilities.

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전력자동화 통신망 인프라를 이용한 네트워크 서비스 최적 구축 방안 (Optimal design of the network service for the Electric Power Automation IT Infra.)

  • 박수환
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2011년도 제42회 하계학술대회
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    • pp.730-731
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    • 2011
  • EPA(Electric Power Automation IT Infra) is a System for Protective Information Transmitter & Receiver and network service. KEPCO(Korea Electric Power Corporation) is building up a high-speed communication network to accept Smart Grid Infra expansion and various terminal communication media characteristic. Recently, MSPP(Multi Service Provisioning Platform) System is establishted to network service. But there are many considerations for optimal design of network service for the Electric Power Automation IT Infra.

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Analysis of Success Factors of Electric Scooter Sharing Service Using User Review Text Mining

  • Kyoung-ae Seo;Jung Seung Lee
    • Journal of Information Technology Applications and Management
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    • 제30권2호
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    • pp.19-30
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    • 2023
  • This study aims to analyze service improvement and success factors of electric scooter sharing service companies by using text mining after collecting reviews of shared electric scooter service applications among various models of sharing economy. In this study, the factors of satisfaction and dissatisfaction of service users were identified using the term frequency inverse document frequency (TF-IDF) technique, and topics for each keyword were extracted using the Latent Dirichlet Allocation (LDA) Topic Modeling technique. According to the analysis results, the main topics were entertainment, safety, service area, application complaints, use complaints, convenience, and mobility. Using the analysis results of this study, employees and researchers of electric scooter sharing service companies will be able to contribute to the improvement and success of related services.

발전소용 4.16 kV급 차단기에서 감전사고 사례 분석 (Analysis of Electric Shock Accident on 4.16 kV Class Circuit breaker for Power Plant)

  • 박남규;송재용;김진표;고재모
    • 한국안전학회지
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    • 제29권4호
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    • pp.54-60
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    • 2014
  • This paper describes electric shock accidents on a 4.16 kV class circuit breaker for power plant. Electric shock accidents mostly involve damage of human life, in comparison with electrical fire, rate of human death tend to be higher in electric shock accidents. Specially, in a high voltage facilities rate of human death comprised about 43.7% by electric shock accidents. If electric shock accidents happen in a 4.16 kV class circuit breaker for power plant, then the power plant discontinue power production. Electric shock accidents in a power plant have a great ripple effect such as an electric power shortage. In this paper, we analyzed electric shock accidents on a 4.16 kV class circuit breaker for power plant. From the analysis results, we confirmed a cause of electric shock accidents on a 4.16 kV class circuit breaker, it happened by defect of interlock equipment or occurrence of breakdown between first feeder contactor and shielding plate. In order to reduce electric shock accidents on a 4.16 kV class circuit breaker, the power plant should consider improvement of interlock equipment and insulation of feeder contactor in circuit breaker.

전력 부가 서비스 시장 환경 조성에 대한 조사 분석 (Analysis for Marketing Circumstance of Electric Power Value Added Service)

  • 김기현;박치현;임용배;최명일;배석명
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2007년도 춘계학술대회 논문집
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    • pp.427-432
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    • 2007
  • This paper research data and information for market environment of electric power value added service According to research, in USA using power line communication(PLC) and other communication device(ex ZigBee, Wireless and so on) online observation and building district management service were being realized Also, in Japan they are executing online electricity facility Igr monitoring service based on IT basic for checking insulation. Also we conduct a survey of H-SCP concept and demand for electric power value added service of Housewife and Working women. This paper will be used data for revitalizing market circumstance of electric power value added service.

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