Research on voltage control strategy for distributed photovoltaic grid-connected inverters
To solve the problems of unstable voltage control and grid-connected inverter accuracy in distributed PV systems,this paper proposes an improved adaptive virtual synchronous generator(VSG)control system by studying and optimizing the VSG control strategy.The experimental results show that the improved adaptive VSG control strategy can effectively cope with the volt-age and frequency fluctuation problems of the grid-connected inverter in the distributed PV system,improve the stability of the system operation and response speed,and is of great significance for the promotion of distributed PV system in the smart grid.
distributed photovoltaicgrid-connected invertervoltage control
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