A study of main causes of malfunction and breakdown for PV inverter and suggestion of some practical measures

Abstract

The inverters and modules are main components of solar power plants. If any one of them is failure, result will affect the production of electricity. Through the literatures survey, it is found that the inverter among the lots of parts of the solar power plant occupy the largest portion of the fault, and the failure and malfunction of the inverter are caused by the conductive surges induced through the power system. Based on these results, authors analyzed power disturbance factors and results were compared with IEC international standards. Finally, some practical measures applicable in designing and construction grid tied PV power plant in Uzbekistan were suggested.