成果報告書詳細
管理番号20110000000614
タイトル*平成22年度中間年報 太陽光発電システム次世代高性能技術の開発 発電量評価技術等の開発・信頼性及び寿命評価技術の開発 
公開日2011/7/30
報告書年度2010 - 2010
委託先名独立行政法人産業技術総合研究所
プロジェクト番号P07015
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 1)発電量評価技術の開発 (1)太陽電池性能評価・校正技術(AIST) a.太陽電池性能評価技術 (i)太陽電池実効性能評価技術の研究開発 光照射効果を含めた性能評価技術については、太陽電池光照射装置等を用いて、各種薄膜太陽電池の光照射において照度温度等の条件が及ぼす効果を検討した。例えば薄膜Si太陽電池においてIEC規格の光照射安定化条件範囲内(40℃~60℃,600W/m2~1,000W/m2 43kWh/m2以上×3回以上による安定化,等)も光照射後の特性差が無視できない可能性があることを明らかにした。
英文要約R&D for High Performance PV Generation Sys. for the future
Research and development of PV performance and reliability characterization technologies(FY2010-FY2012)FY2010 Annual Report
1-1. PV performance measurement and calibration technologies
Temperature dependence of spectral response has been investigated by using Peltier element. The cell temperature is calculated using heat conduction equations. The temperature difference of actual and calculated cell temperature is within 0.5℃. This method is also applicable to partial spectral response measurements. The measurement accuracy (repeatability) of the Isc, Voc and Pmax under outdoor conditions has been investigated. The repeatability of Voc under same temperature was ±0.6%(1σ).
However repeatability of Isc under same irradiance was ±2.8%. This is caused by the difference of response and response speed of the pyrheliometer.
The energy rating software, SolEYar, has been revised in order to improve the linear interpolation algorithm of the I-V curves and to choose reference I-V curves in more flexible patterns. These results were utilized in the discussion of the IEC standards on energy rating (IEC 61853).
PV energy prediction technology has been investigated in order to predict the energy output of PV systems based on meteorological parameters and irradiation data. The observed data of global solar radiation by JMA was prepared for the use in the validation of the global solar radiation predicted by the meso-scale numerical model (MSM) routinely operated at the Japan Meteorological Agency (JMA). Validation methods of the predicted solar radiation were also investigated, and the use of the estimated solar radiation by a meteorological satellite for the validation was under investigation.
2-1. PV reliability characterization technologies
In order to expand the IV duty cycle test applying to 4 cells to 6 cells module, we determined the specifications of control circuits and power supplies and introduced such system. As a preliminary test, we made a reverse bias constant current test using 4 cells module. Then, we confirmed the generation of burnt in the center of the 4 cells module.
Sensing materials for detecting pass of water vapor into photovoltaic modules were investigated.
The demonstration equipments for on-site inspection technologies was constructed in this year. This equipment can measure the current-voltage characteristics of both system and each modules. We also developed the computer simulation of PV system output, which composed to calculate the shading loss with 3D CAD, a linear interpolation method for simulation I-V curve of PV module, and various system losses. In addition, system output energy data of 10 years past was collected from 100 residential PV systems in order to confirm the reliability of PV systems
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