In order to provide a stable current source with fast control in the large-capacity type test of 10kV switchgear, this paper establishes a set of energy storage test power supply topology circuit based on phase-shifting transformer, energy storage capacitor and power electronic conversion device, and establishes a set of energy storage test power supply control strategy based on Fuzzy quasi PR control. Finally, the simulation experiment is carried out on the MATLAB/Simulink experiment platform. The results show that this power supply has fast response speed and high precision. And this power supply can provide the large current required for the short-time current withstand test of the switchgear.

energy storage power supply;experimental power supply;quasi PR contral;fuzzy contral