Adaptability Analysis of Transient Overvoltage Prevention Control in AC/DC Power Grid Considering Uncertainty of High Ratio New Energy

Reactive power/voltage control is a prominent issue first exposed after the large-scale integration of new energy into the DC transmission end power grid. The uncertainty of new energy deepens the unpredictability of the future operation status of the power grid and the complexity of control decisions. The paper summarizes the manifestations of uncertainty in new energy, and takes an actual power grid as an example to simulate and analyze the adaptability of transient overvoltage prevention control in AC/DC power grids considering uncertainty of high proportion new energy. To enhance the adaptability and defense capabilities of prevention control, a prevention control framework should be developed based on local conditions and the impact characteristics of new energy uncertainty on the power grid.