Development and improvement of a transient temperature model of PV modules: Concept of trailing data

Progress in Photovoltaics Research and Applications, vol. 32, pp. 399–405

Abstract

Abstract The development of a transient temperature model of photovoltaic (PV) modules is presented in this paper. Currently, there are a few steady‐state temperature models targeted at assessing and predicting the PV module temperature. One of the most commonly used models is the Faiman thermal model. This model is derived from the modified Hottel‐Whillier‐Bliss (HWB) model for flat‐plate solar‐thermal collector under steady‐state conditions and assumes low or no thermal mass in the modules (i.e., short time constants such that transients are neglected, and steady‐state conditions are assumed). The transient extension of the Faiman model we present in this paper introduces a thermal mass, which provides two advantages. First of all, it improves the temperature prediction under dynamic conditions. Second, our transient extension to the Faiman model allows the accurate parametrization of the Faiman model under dynamic conditions. We present our model and parametrization method. Furthermore, we applied the model and parametrization method to a 1‐year data set with 5‐min resolved outdoor module measurements. We demonstrate a significant improvement in temperature prediction for the transient model, especially under dynamic conditions.

Authors 6

1. Goodfriend M. Whyte corresponding

   Forschungszentrum Jülich · University of Nigeria

   Affiliation as printed

   Department of Physics and Astronomy University of Nigeria Nsukka Enugu Nigeria

   IEK‐5 Photovoltaik, Forschungszentrum Jülich GmbH Jülich Germany

   Department of Physics and Astronomy, University of Nigeria Nsukka, Enugu, Nigeria

2. Bart Elger Pieters

   Forschungszentrum Jülich

   Affiliation as printed

   IEK‐5 Photovoltaik, Forschungszentrum Jülich GmbH Jülich Germany

3. Merdzhanova Tsvetelina

   Forschungszentrum Jülich

   Affiliation as printed

   IEK‐5 Photovoltaik, Forschungszentrum Jülich GmbH Jülich Germany

4. Agbo Solomon

   Forschungszentrum Jülich

   Affiliation as printed

   IEK‐5 Photovoltaik, Forschungszentrum Jülich GmbH Jülich Germany

5. Fabian Ifeanyichukwu Ezema

   University of Nigeria

   Affiliation as printed

   Department of Physics and Astronomy University of Nigeria Nsukka Enugu Nigeria

   Department of Physics and Astronomy, University of Nigeria Nsukka, Enugu, Nigeria

6. Uwe Rau Aachen

   RWTH Aachen University · Forschungszentrum Jülich · Jülich Aachen Research Alliance

   Affiliation as printed

   IEK‐5 Photovoltaik, Forschungszentrum Jülich GmbH Jülich Germany

   Jülich Aachen Research Alliance (JARA‐Energy) and Faculty of Electrical Engineering and Information Technology RWTH Aachen University Aachen Germany