For each typical application scenario, evaluation indicators reflecting energy storage characteristics will be proposed to form an evaluation system that can comprehensively evaluate the operation effects of various functions of energy storage power stations in the actual operation of the power grid.
By enhancing the operations management of pumped storage power stations, and promoting coordination with other renewable energy stations, as well as advancing digital management system construction, it is ensured that the pumped storage can yield stable returns and effectively fulfill its role in electricity consumption adjustment.
With the establishment of a large number of clean energy power stations nationwide, there is an urgent need to establish long-duration energy storage stations to absorb the excess electricity produced by clean energy power stations and balance and adjust the power system [ 3 ].
Considering the strong interconnection among different types of renewable energy power stations and pumped storage power stations and with power grid companies, it is imperative to view the operations management of pumped storage power stations from a multi-energy complementarity perspective, which involves various stakeholders [ 29 ].
The construction of pumped storage power stations among cascade reservoirs can improve the flexible adjustment ability of the clean energy base, which also changes the water transfer and electrical connection of UR and LR at the same time.
The constraints that the energy storage station must satisfy include the capacity and power constraints of the energy storage configuration, as well as the constraint on the unit cost of the energy storage service. The capacity and power constraints are shown in Eqs. (10 – 11). The unit cost constraint of the energy storage service is as follows:
Real-World Implementations Across Diverse Sectors
In order to solve the energy storage system''s charging and discharging process due to battery performance differences, energy storage capacity differences and other SOC …
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