SOLAR CELL MODULE QUALITY EVALUATION SYSTEM AND SOLAR CELL MODULE QUALITY EVALUATION METHOD

• Main Authors: YOSHIKAWA KATSUYA, SHIMIZU KOJI, NAKAHAMA HIDEHARU
• Format: Patent
• Language: English; Japanese
• Published: 03.12.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; SEMICONDUCTOR DEVICES; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

To provide a solar cell module quality evaluation system and a solar cell module quality evaluation method by which a rating for a quality can be given on the basis of a power generation deterioration mechanism based on deterioration of an EVA sealing material.SOLUTION: A CPU 44 functions as an analysis unit 45, a prediction unit 46, and a quality rating giving unit 47. The analysis unit 45 analyzes the deterioration degree of an EVA sealing material on the basis of the intensity ratio of scattering intensities at different wavelengths in a Raman spectrum of the EVA sealing material. The prediction unit 46 predicts a power generation performance change to the operating time period of a solar cell module on the basis of the deterioration degree of the EVA sealing material. The quality rating giving unit 47 gives a rating for the quality of the solar cell module on the basis of the predicted power generation performance change.SELECTED DRAWING: Figure 4 【課題】本発明は、ＥＶＡ封止材の劣化による発電劣化メカニズムに基づいて品質格付けを行うことのできる太陽電池モジュールの品質評価システム、及び太陽電池モジュールの品質評価方法を提供することにある。【解決手段】ＣＰＵ４４は、解析部４５、予測部４６、品質格付部４７として機能する。解析部４５は、ＥＶＡ封止材のラマンスペクトルにおける異なる波長での散乱強度の強度比に基づきＥＶＡ封止材の劣化度を解析する。予測部４６は、ＥＶＡ封止材の劣化度に基づき太陽電池モジュールの稼働期間に対する発電性能の変化を予測する。品質格付部４７は、発電性能の変化の予測に基づき太陽電池モジュールの品質格付を行う。【選択図】図４