Harmonic Response Analysis of Photovoltaic Module Using Finite Element Method

Abstract

Bhore, Chaitanya V. Andhare, Atul B. Padole, Pramod M. Chavan, Chinmay R. Gawande, Vishal S. Prashanth, V. Surya Chary, R. BalagopalNowadays, photovoltaic modules are installed superjacent to cars, ships, trains, metro stations, high rise buildings, etc. where they are subjected to dynamic loads, most significantly through wind and base excitation. Due to these dynamic conditions, vibrations are induced in photovoltaic modules. These vibrations affect the performance and life cycle of photovoltaic module in long run. Therefore, vibration analysis is necessary to understand nature and intensity of vibrations induced in the photovoltaic modules to ensure that they are in acceptable limit. In this paper, the effect of forced vibration on PV module is studied. Harmonic response analysis is performed using finite element method to understand the effect of forced vibrations. Finite element analysis is done for a particular wind speed and different mounting conditions of PV module. The response spectrum is found for excitation frequency ranging from 0 to 100 Hz in sweep generation mode. Vibration responses are plotted in terms of displacement spectrum. This study will provide basis for designing of structures or mountings, which will help in reduction of induced vibration, hence improving life and performance of PV module.