Research on the stability of grid-connected wind and solar power generation

This paper mainly introduces multiple strategies to enhance the stability of wind and solar power grid integration. Firstly, considering the impact on the environment, mechanical energy storage systems such as FESS, PHES and CAES are introduced and analyzed. These energy storage systems cope well with wind and solar demand fluctuations. Then three kinds of GFM control techniques are introduced. For VF control, single-loop control leads to better stability of the grid. VOC is one of the more efficient in terms of power sharing and synchronization speed. Finally, three types of uncertainty that need to be considered in VPP are introduced, such as the uncertainty of renewable energy, the uncertainty of market price and the uncertainty of load demand. Considering the uncertainty of renewable energy, two VPP optimization methods are given to improve the stability of power grid. This paper hopes to consider the possibility of combining these methods in future VPP research.