MATHEMATICAL MODELLING AND SIMULATION OF A PARTIALLY SHADED PHOTOVOLTAIC MODULE [ READ ]
Deli GORON, Donatien NJOMO
Photovoltaic installers are very much concerned with photovoltaic systems working under shaded conditions and this has led to detailed research in this domain. We show in this paper that the electrical power produced by a partially shaded module is greatly reduced as compared to when operating under its optimal conditions. With the aim of having a better understanding of the impact of shading on the production of a photovoltaic module and thereby estimating the economic efficiency of a photovoltaic system, we have also worked on the modelling and simulation of a partially shaded photovoltaic module. The method used consists of first, modelling the current-voltage characteristics of the photovoltaic cells independently and then, summing them up according to the electrical configurations of the module. The results show that the bypass diodes reduce negative effects of shading on the production of electricity of a module. An estimation of the power loss is made at the maximum power point under shaded conditions.
Deli GORON, Donatien NJOMO
Photovoltaic installers are very much concerned with photovoltaic systems working under shaded conditions and this has led to detailed research in this domain. We show in this paper that the electrical power produced by a partially shaded module is greatly reduced as compared to when operating under its optimal conditions. With the aim of having a better understanding of the impact of shading on the production of a photovoltaic module and thereby estimating the economic efficiency of a photovoltaic system, we have also worked on the modelling and simulation of a partially shaded photovoltaic module. The method used consists of first, modelling the current-voltage characteristics of the photovoltaic cells independently and then, summing them up according to the electrical configurations of the module. The results show that the bypass diodes reduce negative effects of shading on the production of electricity of a module. An estimation of the power loss is made at the maximum power point under shaded conditions.
