To ensure the performance of high power PV inverter and network security

a high power test platform is developed.At the same time of bidirectional energy flow

solve the harmonic problems at the network side and reactive pollution problems.The platform consists of PV simulation source

power grid simulation source and integrated test system.PV simulation source can simulate the output characteristics of PV array.Power grid simulation source can simulate the normal and false characteristics of power grid and satisfy the LVT.The test platform can execute the scheduled experimental procedure automatically

such as efficiency test

MPPT test and voltage unbalance.With the result of experiment

this test platform have better experimental function

better performance index and lower power loss.Test requirement of highpower photovoltaic inverter can be realized with the platform.