Photovoltaic power station energy storage cascade utilization

Can pumped storage power stations be built among Cascade reservoirs?

The construction of pumped storage power stations among cascade reservoirs is a feasible way to expand the flexible resources of the multi-energy complementary clean energy base. However, this way makes the hydraulic and electrical connections of the upper and lower reservoirs more complicated, which brings more uncertainty to the power generation.

How does a cascade hydropower system work?

The method utilizes the regulation capacity of cascade small hydropower plants and pumped storage units, in conjunction with the fluctuating characteristics of local distributed wind and PV, to perform power and energy time-series matching and determine the optimal capacity allocation for each type of renewable energy.

How to maximize utilization of existing cascaded small hydropower stations?

Through simulation, the following conclusions are drawn. The capacity configuration method proposed in this study maximizes the utilization of existing cascaded small hydropower stations by allocating the capacity of pumped storage units based on the total available regulation capacity of the cascade system.

What is the capacity configuration method for Cascade hydropower–wind–PV-pumped storage?

A capacity configuration method is proposed for the cascade hydropower–wind–PV-pumped storage complementary power generation system. The method determines the capacity of pumped storage units based on the maximum regulation capacity of cascade small hydropower after pumped storage transformation.