Abstract
AbstractAs large-scale wind power has been and will be integrated into power grid, traditional Active Power Dispatch and Control (APDC) system has encountered new challenges. In this paper, the active power dispatch mode of interconnected power grids which is suitable for the large-scale integration of wind power is analyzed firstly. Secondly, it is pointed out that traditional decentralized balance control mode of active power in provincial power grids would not withstand the impact of the large-scale wind power fluctuation. Then, a centralized control mode is proposed in the paper to reallocate all of the generation resources in a wider power grid. Thirdly, the characteristics of the proposed centralized control mode are analyzed from the following aspects: ways of active power balance, mainbodies of active power control, methods of resource allocation, inter-provincial power exchange, security constraints, and data communications. Finally, considering present dispatch system and technical basis in China, a solution is proposed for the active power control for China interconnected power grids. The aim of the proposed solution is to achieve the centralized control mode, and the hierarchical coordination control mode is the transition between present system and the final system.
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