Modeling and operation of a 10 kW photovoltaic power generator using equivalent electric circuit method

The output power of a photovoltaic power generator system (PV system) changes continuously as it strongly depends on the weather condition (solar radiation and temperature). Large fluctuations of output of PV system result in fluctuation and hence of harmonics in the inverter output. The PV systems are usually connected to the power grid lines, therefore, it is necessary to simulate the effects of the PV power systems on the commercial distribution line. In this paper, the authors have modeled a 10 kW PV module using current-voltage characteristic of a PV module by estimating its equivalent electrical circuit parameters.