A New method to solve the voltage fluctuation of photovoltaic system

The characteristics of distributed photovoltaic system are intermittent and unstable,which will have a great influence on the voltage of the power system. The use of Electric Springs is a novel way of distributed voltage control. The purpose of ES is to transfer the power fluctuations of new energy injected into the power grid to a wide-voltage load, so that the demand side and supply side of the energy can match to improve the new energy consumption capacity of the distributed photovoltaic system. This paper builds a simulation model in Matlab/Simulink and changes the output power of the PV system to get the voltage waveform of the feeder line with electric spring and without electric spring. The simulation results show that this voltage control method can stabilize the voltage on the feeder effectively.