With the increase of capacity and scale of PV power station

its influences of the transient operation characteristics on grid should be addressed and PV power station modeling is theoretical basis for knowing its operation characteristics and its effect on grid when the large-scale PV accessed.In this paper

combined with the actual construction of PV power station and the control characteristic of PV array and inverter

the electromagnetic transient simulation model of PV power station based on whole system modeling method is set up firstly in PSCAD/EMTDC;then

the data of light intensity and temperature actually measured at site is taken as the input to simulation analyze the influence of light intensity and temperature on voltage of DC side

the output current and power;Finally

the transient simulation and analysis for the three-phase short-circuit fault occurred inside and grid side is performed.