• 전력전자학회:학술대회논문집
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• 전력전자학회 2017년도 전력전자학술대회
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• pp.196-197
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• 2017

최근 국내 태양광산업은 보급량이 증가하고 있고, 정부 정책에서도 에너지신산업을 추진하는 등 시장 활성화에 노력하고 있다. 본교에서는 신재생에너지원 중 태양광발전시스템에 대해 건학이념인 실사구시에 입각한 학부 교육 프로그램을 개발 및 적용하고 있으며 본 논문에서는 이에 대한 내용을 소개한다. 산업체 실무에 기초한 태양광발전시스템 학부 교육 프로그램은 마이크로콘트롤러(MCU) 교육, DC-DC 컨버터와 DC-AC 인버터 등 전력변환장치 기반의 Solar Explorer Kit 교육, 태양광발전시스템 발전량 산출과 손실분석 등 성능평가를 위한 PVsyst 엔지니어링 교육 내용으로 구성된다. 특히, 전력변환장치로 구성된 Solar Explorer Kit 교육 프로그램은 DC-DC 컨버터와 배터리(리튬-폴리머) 충전, 배터리(리튬-폴리머) 방전과 DC LED 부하 접속, 독립형 DC-AC 인버터 출력과 AC 할로겐 램프 부하 접속, 계통연계형 DC-AC 인버터 출력 실습 등에 대해 소개한다.

• 한국철도학회논문집
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• 제19권5호
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• pp.592-599
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• 2016

프랑스 파리에서 2015년 12월 개최된 제21차 기후변화협약 당사국총회(COP21)는 신기후체제 합의문인 "파리 협정"을 채택하였다. 이는 2020년 만료 예정인 교토의정서를 대체하는 것으로 모든 국가가 전지구적인 기후변화대응에 참여하는 것으로 국제사회는 공동의 장기 목표로 산업화 이전 대비 지구 평균 기온 상승을 $2^{\circ}C$ 보다 상당히 낮은 수준으로 유지하고 온도 상승을 $1.5^{\circ}C$ 이하로 제한하기 위한 노력을 추구하여야 하며, 모든 국가는 장기 저탄소 개발 전략을 마련하여 2020년까지 제출하는 것을 요청하고 있다. 철도교통분야에서는 저탄소화에 대한 연구를 활발히 지속적으로 진행하고 있다. 본 논문에서는 국내 고속철도 역사 중 최대 건축규모이며 2014년 기준 여객수송인원 약 7백만명을 담당하는 광명역 역사 지붕을 활용한 1.5MW급 태양광 발전시스템을 설계를 위한 연구를 다룬다. 이를 위해 최적의 태양광발전시스템 설비를 구성한 후 PVsyst소프트웨어를 활용하여 연간 예상 발전량을 산출하고 배전계통 연계시에 예상 수익을 산출하여 철도역사의 태양광발전시스템 도입에 따른 저탄소 에너지화에 대한 기여도를 분석하고자 한다.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2009년도 춘계학술발표대회 논문집
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• pp.43-48
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• 2009

In this study, through case studies, solar energy systems were coordinated with architectural plan elements and the others in apartment complex, and the energy performance was evaluated quantitatively through computer simulation PVSYST and RETScreen. As a results, in plan process of the application of solar energy systems in apartment complex, solar energy system should be considered as not only energy reducing technical element but also part of architectural plan element. And it must be considered with architectural plan elements, composition methods, energy storage methods, technical elements from the early basic plan stage. Photovoltaic system was installed on the wall facing the south and rooftop. The energy ratio of electric load was shown to be 5.5%. The result showed 7.2% when adding it to shading device additionally, and 6.4% in case of putting extra translucent module on windows. Active solar collecting system was applied on roof with the angle of 45. Maximum number of solar collector was 10 in a row, and the total solar collecting area was $915.00m^2$. The energy ratio of domestic water heating load by active solar hot water system is shown to be 11.4%.

• 한국태양에너지학회 논문집
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• 제39권2호
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• pp.33-43
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• 2019

In this study, reflecting long-term climate characteristics, we analyzed electricity generation and generation characteristics of 3kWp PV system, which was semi-integrated with air duct behind. Using PVsyst as a simulation analysis tool, we inputted "National reference standard weather data" of 16 regions as a typical climatic data. The result is summarized as follows: First, the national average annual electricity generation was 1,312 kWh/kWp (StDev, ${\sigma}=71$). It was most abundant in Mokpo with 1,434 kWh/kWp, which was average 21% greater than the lowest with 1,165 kWh/kWp in Seoul and 1,197 kWh/kWp in Jeju. National average daily generating time based on STC was 3.6 hours (${\sigma}=0.43$), and that of Mokpo and Seoul was 3.9 and 3.2 hours respectively. Second, Jeju showed the great difference of annual monthly generation by month (annual average = 99.7 kWh/kWp, ${\sigma}=25.5$), while Jinju showed the smallest difference (annual average = 115.5 kWh/kWp, ${\sigma}=10.6$). Generation in Jeju was at the largest in April with 132.2 kWh/kWp, which was 2.3 times greater than the lowest 55.2 kWh/kWp in January. However, generation in Jinju was at the largest in March with 129.3 kWh/kWp, which was only 1.3 times greater than the lowest 101.1 kWh/kWp in June. Third, the annual average PR was the highest in Incheon with 85.8% and the lowest in Jeju with 83.2%. PR of Mokpo was 84.3%, which was lower than that of national average.

• 대한건축학회논문집:구조계
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• 제35권5호
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• pp.169-179
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• 2019

During the initial design stage of apartment complex, the photovoltaic(PV) system has been considered as an alternative of renewable energy system and planned to install at the rooftop floor level in general. The electric power generation characteristics can be influenced by the block layout, building orientation and roof top structure because of azimuth angle, tilt angle, and partial shading. This study aims to investigate power generation characteristics of photovoltaic system in apartment buildings by considering the partial shading conditions due to the block layout, building orientation and roof-top structures. For the photovoltaic module arrangement planning in rooftop floor level, shading areas were firstly analyzed due to the adjacent building structure. And the annual and seasonal power generation of PV system were analyzed through the PVsyst simulation results. The results show that shading period at the roof top surface can be increased due to the parapet and water tank. Initial design power capacity can be decreased by considering the daily insolation period and distance between PV modules through the shading simulation. As the number of PV modules decreases, the annual power generation can be decreased. However annual power generation per unit area of PV modules can be increased and performance ratio can be increased above 80%. Also the power generation of PV system can be critically affected by building orientation and the performance ratio can be drastically decreased in east-oriented buildings due to the shading problems caused by adjacent structures at roof top level such as parapet and water tank.