• 제목/요약/키워드: Solar power

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IEA SolarPACES 및 Task 활동 (Activities of IEA SolarPACES & Task Programs)

  • 강용혁;김종규;이현진
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2011년도 춘계학술발표대회 논문집
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    • pp.246-249
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    • 2011
  • SolarPACES is an international cooperative network bringing together teams of national exports from around the world to focus on the development and marketing of concentrating solar power systems (also known as solar thermal power systems). It is one of a number of collaborative programs, called Implementing Agreements, managed under the umbrella of the International Energy Agency to help find solutions to worldwide energy problems. Technology development is at the core of the work of SolarPACES. Member countries work together on activities aimed at solving the wide range of technical problems associated with commercialization of concentrating solar technology, including large-scale system tests and the development of advanced technologies, components, instrumentation, and systems analysis techniques. In addition to technology development, market development and building of awareness of the potential of concentrating solar technologies are key elements of the SolarPACES program The Implementing Agreement specifies broad "Tasks," or thematic areas of work SolarPACES currently has three ongoing tasks, focusing on concentrating solar electric power systems (Task I), solar chemistry research (Task II), and solar technology and applications (Task III). An Operating Agent, nominated by the ExCo, is responsible for overseeing the work of each task Each task maintains a detailed program of work that defines all task activities, including their objectives, participants, plans, and budgets. In addition to technical reports of the activities and their participants, accomplishments and progress are summarized in the SolarPACES annual report. Many SolarPACES activities involve close cooperation among member countries (either through sharing of task activities or, occasionally, cost-sharing), although some cooperation is limited to sharing of information and results with other participants. In this paper, structure, works, and members of SolarPACES and Korean activies in the SolarPACES are introduced.

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IEA SolarPACES 및 Task 활동 (Activities of IEA SolarPACES & Task Programs)

  • 강용혁;김종규;이현진
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2011년도 추계학술발표대회 논문집
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    • pp.320-323
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    • 2011
  • SolarPACES is an international cooperative network bringing together teams of national experts from around the world to focus on the development and marketing of concentrating solar power systems (also known as solar thermal power systems). It is one of a number of collaborative programs, called Implementing Agreements, managed under the umbrella of the International Energy Agency to help find solutions to worldwide energy problems. Technology development is at the core of the work of Solar PACES. Member countries work together on activities aimed at solving the wide range of technical problems associated with commercialization of concentrating solar technology, including large-scale system tests and the development of advanced technologies, components, instrumentation, and systems analysis techniques. In addition to technology development, market development and building of awareness of the potential of concentrating solar technologies are key elements of the Solar PACES program. The Implementing Agreement specifies broad "Tasks," or thematic areas of work. SolarPACES currently has three ongoing tasks, focusing on concentrating solar electric power systems (Task I), solar chemistry research (Task II), and solar technology and applications (Task III). An Operating Agent, nominated by the ExCo, is responsible for overseeing the work of each task. Each task maintains a detailed program of work that defines all task activities, including their objectives, participants, plans, and budgets. In addition to technical reports of the activities and their participants, accomplishments and progress are summarized in the SolarPACES annual report. Many SolarPACES activities involve close cooperation among member countries (either through sharing of task activities or, occasionally, cost-sharing), although some cooperation is limited to sharing of information and results with other participants. In this paper, structure, works, and members of SolarPACES and Korean activies in the SolarPACES are introduced.

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양방향성 PWM컨버터를 이용한 가정용 태양광 에어컨 시스템에 관한 연구 (A study of residential solar airconditioning system using bidirectional PWM converter)

  • 유권종;송진수;황인호;김홍성;고재석;최규하;김한성
    • 대한전기학회논문지
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    • 제45권3호
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    • pp.358-364
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    • 1996
  • Recently, much power demand from domestic power consumer is weakening the allowable power reserve margin in summer, especially at midday for one day due to a steep increase of air cooling loads such as air conditioner. Therefore solar airconditioning system can'be considered as one of the best remedies to meet the increase of peak power. Generally in solar air conditioning system, the diode rectifier is used to build up DC link voltage from AC source. The diode rectifier is simple and cheap but it brings out the problems of low power factor and plentiful harmonics at the AC source. Also It can derate the utilization rate of solar energy because the reverse of power flow cannot be made. Hence, in this paper to overcome the peak power problem in summer and to endure good AC input characteristics, solar air conditioning system using the PWM converter is proposed. As results, obtained are the characteristics of the PWM converter such as low distorted current waveform, high power factor and bidirectional power control. And also the stability of proposed system is verified by examining the dynamics of step load change and power reversal testing. (author). refs., figs., tabs.

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태양열 발전에 대한 IEA의 활동 및 전망 (Activities and Outlook of IEA about Concentrated Solar Power)

  • 이현진;김종규;강용혁
    • 융복합기술연구소 논문집
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    • 제2권1호
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    • pp.13-17
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    • 2012
  • 1) 국제에너지위원회 IEA 산하 SolarPACES(Solar Thermal Power and Chemistry Energy System)는 태양열발전 및 화학 관련한 기술 개발 및 보급을 목표로 한국을 포함하여 현재 20개국이 활동 중이다. 2011년 우리나라는 집행위원회뿐만 아니라 6개 기술 분야 중에 태양열발전, 태양열화학, 태양열집광기술 및 적용 3개 분야에 참여하고 있다. 2) 2011년 기준으로 약 1.2GW 용량의 태양열 발전소가 전 세계에 설치되었고, 스페인 582MW, 미국 507MW로 대부분을 차지한다. 현재 미국 8GW, 스페인 4.46GW, 중국 2.5GW를 포함하여 전체 약 17GW 용량 발전소들이 건설 또는 계획 중에 있다. 3) 국제에너지위원회 IEA는 태양열 발전소는 태양광에 비해 약 1/3정도의 발전 용량을 갖겠지만, 열저장을 이용한 높은 가동시간을 바탕으로 2050년에는 태양광이나 바이오매스와 비슷한 수준으로 전기를 공급하여 전 세계 전기의 11.3% 정도에 이를 것으로 예측하고 있다.

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SARIMA 모형을 이용한 태양광 발전량 예보 모형 구축 (Solar Power Generation Forecast Model Using Seasonal ARIMA)

  • 이동현;정아현;김진영;김창기;김현구;이영섭
    • 한국태양에너지학회 논문집
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    • 제39권3호
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    • pp.59-66
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    • 2019
  • New and renewable energy forecasts are key technology to reduce the annual operating cost of new and renewable facilities, and accuracy of forecasts is paramount. In this study, we intend to build a model for the prediction of short-term solar power generation for 1 hour to 3 hours. To this end, this study applied two time series technique, ARIMA model without considering seasonality and SARIMA model with considering seasonality, comparing which technique has better predictive accuracy. Comparing predicted errors by MAE measures of solar power generation for 1 hour to 3 hours at four locations, the solar power forecast model using ARIMA was better in terms of predictive accuracy than the solar power forecast model using SARIMA. On the other hand, a comparison of predicted error by RMSE measures resulted in a solar power forecast model using SARIMA being better in terms of predictive accuracy than a solar power forecast model using ARIMA.

스마트폰 기반의 지능형 태양광 전력적산 모니터링 시스템에 관한 연구 (The intelligent solar power monitoring system based on Smart Phone)

  • 김관형
    • 한국정보통신학회논문지
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    • 제20권10호
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    • pp.1949-1954
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    • 2016
  • 스마트 그리드(smart grid) 기술은 전력 공급자와 소비자 사이를 실시간으로 전력정보를 교환함으로써 전력의 효율성을 높이는 전력망 관리 기술이다. 최근에는 유지보수 및 설치가 용이한 태양광 발전시스템에 대한 적용이 늘고 있다. 그러나 태양광 발전 시스템은 고장진단이 어려우며, PV(PhotoVoltaics) 어레이 및 인버터(inverter) 등의 결함과 기타 잠재적인 출력저하 요소로 인하여 발전량이 감소하기도 한다. 이처럼 태양광 발전 시스템을 통하여 안정적인 에너지 포집과 관리 및 조속한 고장 검출이 필수 요구사항이라 할 수 있다. 본 논문에서는 태양광 발전 시스템을 대상으로 전력 생산량 및 이상 동작 현상을 모니터링하고 외부 환경을 계측하는 계측모듈을 개발하고, 계측된 정보 데이터를 전송할 수 있는 통신모듈을 통하여 원격지에서 태양광 발전 시스템의 동작 상태를 모니터링 하도록 설계하였다. 또한 스마트폰을 기반으로 구축된 태양광 발전 시스템을 실시간으로 관리하고 모니터링 할 수 있는 모바일 관리 시스템을 제시하고자 한다.

일사량에 따른 태양광 발전출력 분석

  • 정종욱;김선구
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2009년도 추계학술대회 논문집
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    • pp.210-210
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    • 2009
  • This paper describes the analysis results of an generated power with a inclined solar radiation. 2 different types of modules were employed to study the effect of the a inclined solar radiation on the generated power amount. As a result, it was confirmed that the generated power increased with the solar radiation and the mono crystal type cells generated higher power than the thin film type cells.

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태양전지 모듈의 DC 아크사고 감지회로에 관한 연구 (A Study on DC Arc Accident Detection Circuit of Solar Cell Module)

  • 정민상;곽동걸;이봉섭;최정규
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2019년도 전력전자학술대회
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    • pp.546-548
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    • 2019
  • Due to environmental problems, fossil fuel and nuclear power generation are declining and solar power generation is increasing. DC are of a solar power plant is accidents caused by accidents, causing damage to property and people. This study prevents DC are accidents of solar power modules. It is expected that the IoT will be used to quickly alert the manager and greatly contribute to fire prevention.

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정20면체기반 반구형 돔의 일사량과 효율적인 솔라패널에 관한 연구 (A Study on Solar Radiation and Efficient Solar Panel of Icosahedron-based Hemispherical Dome)

  • 손수덕;이돈우;이승재
    • 한국공간구조학회논문집
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    • 제16권1호
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    • pp.53-64
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    • 2016
  • Solar power is being spotlighted recently as a new energy source due to environmental problems and applications of solar power to curved structures are increasing. Solar panels installed on curved surfaces have different efficiencies depending on its position and the efficient positioning of solar panels plays a critical role in the design of solar power generation systems. In this study, the changing characteristics of solar irradiance were analyzed for hemispherical dome with a large curvature and the positioning of solar panels that can efficiently utilize solar energy was investigated. With an icosahedron-based hemispherical dome consisting of triangular elements as target model, a program for calculating solar irradiance using a normal vector of the solar module on each face was developed. Furthermore, the change of solar irradiance according to the sun's path was analyzed by time and season, and its effects on shades were also examined. From the analysis results, the effective positioning could be determined on the basis of the efficiency of the solar panels installed on the dome surfaces on solar irradiance.

우주태양광발전 기술 동향 (Technological Trends in Space Solar Power)

  • 윤용식;최남미;이호형;최정수
    • 항공우주산업기술동향
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    • 제7권2호
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    • pp.33-39
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    • 2009
  • 1968년 미국의 피터 글레이저 박사가 정지궤도에 위성을 띄워 태양 에너지를 직접 받아 전기로 변환하여 지구로 송전하는 거대한 태양광위성의 개념을 소개한 바 있다. 이에 대해 미국, 일본, 유럽 등에서는 우주태양광 발전을 미래의 새 에너지원으로 주목하여 활발한 기초 연구와 개념 설계 그리고 최근에는 본 사업의 실현을 위한 구체적인 방안까지 발표하고 있는 실정이다. 현재 우주태양광발전 기술은 계속 개발 중으로 미국과 일본에 서는 2030 년경에 실용화할 계획으로 있다. 본 논문에서는 그린에너지와 새 에너지원으로 주목받고 있는 우주 태양광발전에 대한 선진국의 기술 동향 및 국내의 추진 전략에 대하여 기술하였다.

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