Power Capacity Configuration of Hydroelectric-Wind-Photovoltaic-Storage Multi-Energy Power System based on the In-Depth Utilization of Traditional Hydropower
Under the new situation and requirements of energy development,the construction of pumped storage relying on conventional hydropower stations is an important way to promote the in-depth utilization of hydropower and the development of pumped storage.In or-der to further study the construction mode selection and capacity allocation method of pumped storage for hydropower integration transfor-mation,the power supply configuration of Longyangxia hydroelectric-wind-photovoltaic-storage multi-energy base is studied by using the pumped storage developed by hydropower expansion and hydropower combination as the flexible power supply,and the 8 760 h sequential operation simulation of the power system is carried out based on the optimal dispatching model of the integrated power transmission base,and the construction mode and scale including hydropower expansion,reversible unit and energy storage pumping station are optimized and configured with wind power and photovoltaic.The results show that after adding hydropower integration to transform the pumped stor-age power station,the adjustment capacity of the integrated base is enhanced and larger capacity wind and solar resources can be con-figured,and the expansion scale of Longyangxia hydropower station is recommended to be 1 200 MW,and the installed capacity of pumped storage power station is 4 000 MW.The proposed pumped storage construction mode and capacity allocation method based on time-series production and operation simulation provide a reference for the power configuration of the hydroelectric-wind-photovoltaic-storage multi-energy base.