Study on developing scale of wind power and its layout of regional power grid

摘要

Due to the operating characteristics different from conventional power plants, the grid connection of large-scale wind power will inevitably cause much impact on power grid. Thus, the developing scale in region level and the reliable grid connection of wind power become key issues to be considered. The study in this paper will focus on the developing scale of wind power of regional power grid, and the layout and location of wind farms will be analyzed based on the above results. Firstly, the accommodation capability of power grid will be analyzed from power balancing consideration, and the developing scale of wind power will be determined consequently. Based on the above analysis, the impact of wind farm on busbar voltage will be studied through sensitivity analysis considering the reactive power characteristics of wind farm, and the reasonable capacity of wind farm connected to each busbar will be explored. Finally, a transient stability analysis will be conducted after the grid connection of large-scale wind power into power system, and suggestions on the planning layout of wind power will be given considering the transmission capability constraints of power grid.