| 논문명 |
자연채광용 박막 태양전지 BIPV모듈의 발전성능 실측연구 / Performance characteristics of building-integrated transparent amorphous silicon PV system for a daylighting application |
| 수록사항 |
한국생태환경건축학회 학술발표대회 논문집, 통권10호 (2006-05) |
| 주제어 |
건물일체형 태양광발전 ; 투명 ; 박막 ; 아몰포스 ; 태양전지 ; 자연채광 ; 단위출력당 발전량 ; Building Integrated PV(BIPV) ; Transparent ; Thin film ; A-Si ; Solar Cell ; Daylighting ; Specific power yield |
| 요약1 |
본 연구에서는 국내에서 최초로 자연채광이 가능한 투명 박막태양전지를 실제건물에 설계, 시공한 후, 장기간에 걸친 성능 모니터링을 통해 발전성능을 측정하고, 통계적기법을 통해 각 영향변수별 성능 특성을 분석 제시함으로서, 향후 투명 박막태양전지를 이용한 건물일체형 태양광발전 설계의 기초자료를 수립하는 데 주 목적이 있다. |
| 요약2 |
Thin film technology based on amorphous silicon(a-Si) offers a range of attractive features that are ideally suited for building integrated photovoltaic(BIPV) installations. Solar modules may be assembled to customer specific BIPV elements for roofs and facades, and thus may combine various functions, namely electricity generation, thermal insulation, shading, and daylighting. The first grid-connected, building-integrated transparent amorphous silicon photovoltaic installation has been operated since October 2004 in Yongin, Korea. The 2.2kWp transparent PV system was applied to the facade of entrance hall in newly constructed KOLON E&C R&D building. The PV module is a nominal 0.98m x 0.95m, 10% transparent, laminated, amorphous(a-Si) thin-film device rated at 44 Wp per module. To demonstrate the architectural features of thin film PV technologies for daylighting application, transparent PV modules are attached to the building envelope with the form of single glazed window and special point glazing(SPG) frames. Besides power generation, the 10% transmittance of a-Si PV module provides very smooth natural daylight to the entrance hall without any special shading devices for whole year. As the PV installation area of the target building is oriented to the south-west 50o and partially self-shaded by the adjacent extruded building shapes, it is not a best position for PV performance. On the other hand, demonstrative installation and performance data under those disadvantageous condition will be very valuable, because the best installation position for the best power performance is not always available for a architectural BIPV application.
The installation is fully instrumented and is continuously monitored in order to allow the performance assessment of amorphous silicon PV operating at the prevailing conditions. This paper presents measured power performance data from the first 12 months of operation. For the first year, annual average system specific yield was just 486.4kWh/kWp/year which is almost half of typical amorphous silicon PV output under the best angle and orientation. It should be caused by building orientation and self-shading of adjacent mass. Besides annual power output, various statistical analysis was performed to identify the characteristics of transparent thin film PV system. |
