• 제목/요약/키워드: Man-Power

검색결과 2,126건 처리시간 0.03초

고압 대전류용 전력변환 점호장치 및 감시시스템 개발 (Development of firing equipment and monitoring system for electric power conversion system for high voltage and large current)

  • 이주현;임익헌;류호선
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2006년도 전력전자학술대회 논문집
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    • pp.481-484
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    • 2006
  • A electric power conversion system in a pumped storage power plant is important equipment for converting electric motor kinetic energy into electric power. A electric power conversion monitoring system consists of high voltage thyristor firing equipment, fault detection module, data gathering module, real time data processing equipment and man machine interface system. This paper describes electric power conversion system overview, the developed SFC monitoring system configuration including system characteristics, and successful application result to San-Cheong pumped storage power plant.

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부하역률 제약을 고려한 최적 급전 알고리즘 (The optimal power flow algorithm considering load power factor limits)

  • 김광욱;조종만;김진오
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 하계학술대회 논문집 A
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    • pp.98-100
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    • 2003
  • This paper presents the method for computing the power economic dispatch with an optimal power flow (OPF) computation algorithm, considering the power factor limits constraint. Efficient reactive power planning enhances economic operation as well as system security. Accordingly, an adequate level of power factor limits for the load buses should be evaluated for economic operation. The power factor limits are included and described into the OPF's objective function. The proposed method is applied to IEEE 26 buses system.

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리튬 배터리를 연계한 100kVA UPQC 개발 및 성능시험 (The Development and Experimental Evaluation of 100kVA Unified Power Quality Conditioner interconnected to the Li-Battery System)

  • 이학주;채우규;박중성;손진만;최은식
    • 조명전기설비학회논문지
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    • 제26권10호
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    • pp.102-110
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    • 2012
  • This paper propose the advanced topology of UPQC, its DC link is connected with Lithium battery, to compensate the momentary interruptions. The proposed system can be operated as UPS mode using the parallel inverter, which control the charge or discharge of battery, in case of the interruption. We dvelop 100kVA UPQC using the proposed topology to rise the power quality and the reliability of Microgrid. We verify its usefulness through voltage compensation test, UPS operation test and etc. using Microgrid test facility.

1980년대 중반 남성 패션에 나타난 '뉴 맨(New Man)' 이미지 (The Image of 'New Man' in Men's Fashion in the mid-1980s)

  • 염혜정
    • 패션비즈니스
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    • 제15권1호
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    • pp.171-184
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    • 2011
  • This paper is purposed to clarify that an increase of the matter of concern about men's fashion in the mid-1980s was coincided with rapid change of images for men and diversification within the context of economy, society, culture and to analyze the characteristic of each fashion and the meaning. Findings are as follows: 'New men' played a key role creating and communicating the new male image through the media, as a new masculine appeared in the middle of 1980s. Especially it was spreaded into with British as a center between the generations of young men described as a white-collar worker about the ages from 18 to 35 specifically and appeared by the cultural background in accordance with the spread of consumerism, materialism and post modern feminism and the development of men's fashion. There were 2 types of fashion styles for 'New men' image on the media in the mid-1980s. The First is 'power suit look style' which is self-conscious, including 'corporate formal suit look' and 'soft & sexy suit look'. The Second is 'extravagant body conscious style' which characterize the decolletage and androgynous, including 'tough sports look' and 'sexy skirt look'. Lastly, the 'New men' image means a man as a visible object and a man in the image world.