Abstract

English

Highlights

  • Renewable energy sources are attracting more and more investors each year, which increases the share of renewable electricity generation [1]

  • While many renewable energy sources are large scale implemented by corporations or government due to high cost of installation, solar energy is available for private users and relatively the cost of solar panels is low, which stimulated the mass production and popularity of the technology [2, 10]

  • Reliability is a crucial parameter of photovoltaic systems and there are a number of standards covering the maximum allowed performance reductions influenced by stress in harsh weather conditions because dependent on the annual weather conditions the solar panel performance may be significantly reduced

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Summary

Introduction

Renewable energy sources are attracting more and more investors each year, which increases the share of renewable electricity generation [1]. Reliability is a crucial parameter of photovoltaic systems and there are a number of standards covering the maximum allowed performance reductions influenced by stress in harsh weather conditions because dependent on the annual weather conditions the solar panel performance may be significantly reduced. Such weather factors as heavy wind bursts, snow, temperature fluctuations are important in prediction the efficiency of a specific solar module and the durability of the solar system must be taken into account [5, 11]. In this work a computer controlled vibrational stand and an array of 3-axis acceleration evaluating sensors has been applied in order to investigate the influence of dynamic mechanical loads on the crystalline structure of a solar cell and propose a measurement setup for the testing of the solar modules

Theoretical approximation and FEM analysis
Experimental setup for estimation of mechanical stress
Results
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