outdoor data evaluation of half full cell modules with regard to measurement uncertainties and the application of statistical methods

• DOI: 10.4229/eupvsec20142014-5cv.2.19
• Publication Date: 2014-01-01
• Authors: D. Daßler; Jens Schneider; Matthias Ebert; Stephanie Malik; J. Fröbel
• Keywords: PV Modules; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology; OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems); 7. Clean energy

29th European Photovoltaic Solar Energy Conference and Exhibition; 3269-3273<br/>A reduction of series resistance loss due to a declined current in halved cell modules (compared to full cell modules) is applied by several PV module manufacturers. In [1] the outdoor performance of a grid connected array, which used the half-size cell design, was examined. The advantages of half-size cells in PV modules in comparison to full-size cells were also investigated theoretically and experimentally via indoor measurements under standard test conditions by SERIS Institute [2, 3]. In a public funded BMBF project a module design was developed in cooperation with SERIS. After module manufacturing the outdoor characterization, to analyze the performance behavior under real operating conditions, was performed in a second step. For that purpose a half-size cell as well as a full-size cell module in a standard module size were measured outdoor in an open rural test area in Germany. The following paper covers the measuring set-up and a detailed uncertainty analysis. The data evaluation is focused on filtering methods to gain reliable data sets from long-term outdoor tests of half-size and/ full-size cell modules.<br/>