Author(s): Yue Yang; Shijun Chen; Kelin Yan
Linked Author(s):
Keywords: Multi-energy complementary operation hydropower stations and pumped-storage power stations short-term scheduling zonal and hierarchical solving strategies
Abstract: The research aims to make full use of the adjustment capacity of multiple hydropower stations and pumped-storage power plants (PSPPs) in the large power grid, maximize consumption of wind and photovoltaic (PV) powers, smooth the volatility, and meet the load demand of power grids. To this end, a short-term optimal scheduling model for the hydro-wind-PV-thermal-storage multi-energy complementary system was established and the real-time tracking mechanism of receiving-end loads under the coordination of energy resources, power grids, and loads was explored. In addition, the zonal and hierarchical solving strategies were proposed for the model. Taking a provincial power grid in China's southeast coastal area as an example, empirical research was carried out to verify the feasibility of the proposed method. Research results show that the peak-shaving depth of thermal power stations can be reduced while making full use of clean energy resources through hydro-storage optimal scheduling, thus ensuring flexible and reliable responses to the load demand of the power grid. Research findings provide reference for the multi-energy complementary scheduling and operation decisions of provincial power grids in the new power system.
Year: 2025