New procedure and field-tests to assess photovoltaic module performance

摘要: Abstract The theoretical performance of a photovoltaic (PV) module is typically evaluated by using models based on equivalent circuits whose parameters are derived from data listed in manufacture's datasheet. Few manufactures provide detailed enough datasheets to allow highly accurate models. In many cases simplified have be used due missing information. This paper proposes new procedure evaluate PV modules performance. the four-parameter model, which can with input provided most manufactures. Firstly, extraction standard test conditions discussed. Secondly, an algorithm for estimation under real weather proposed. validated commercial module. Estimations and field-test found good agreement. difference between response time pyranometer (tens seconds) (almost instantaneous) important source errors. aspect has not been previously discussed literature sufficient detail. proposed represents feasible tool calculating described limited set data, operating arbitrary conditions.