A New Dynamic Model to Predict Transient and Steady State PV Temperatures Taking into Account the Environmental Conditions

Energies

Eleni Kaplani¹  Socrates Kaplanis² 

[1] Engineering, Faculty of Science, University of East Anglia, Norwich NR4 7TJ, UK;Renewable Energy Systems Lab, Technological Educational Institute of Western Greece, M. Alexandrou 1, 26334 Patra, Greece;

关键词: PV cell temperature;    transient profiles;    time constant;    steady state;    wind velocity;    environmental effects;   

DOI  :  10.3390/en12010002

来源: DOAJ

【 摘 要 】

Photovoltaic (PV) cell and module temperature profiles, T_c and T_pv, respectively, developed under solar irradiance were predicted and measured both at transient and steady state conditions. The predicted and measured T_c or T_pv covered both a bare c-Si PV cell, by SOLARTEC, at laboratory conditions using a solar light simulator, as well as various c-Si and pc-Si modules (SM55, Bioenergy 195W, Energy Solutions 125W) operating in field conditions. The time constants, τ, of the T_c and T_pv profiles were determined by the proposed model and calculated using the experimentally obtained profiles for both the bare PV cell and PV modules. For model validation, the predicted steady state and transient temperature profiles were compared with experimental ones and also with those generated from other models. The effect of the ambient temperature, T_a, wind speed, v_w, and the solar irradiance, I_T, on the model performance, as well as of the mounting geometries, was investigated and incorporated in the prediction model. The predicted temperatures had the best matching to the measured ones in comparison to those from six other models. The model developed is applicable to any geographical site and environmental conditions.

【 授权许可】

Unknown