Relationship between pumped storage capacity and power generation

How to optimize pumped-storage power station operation?

Propose a novel optimization framework of pumped-storage power station operation. Optimize pumped-storage power station operation considering renewable energy inputs. GOA optimizes peak-shaving and valley-filling operation of pumped-storage power station. Promote synergies of hydropower output, power benefit, and CO 2 emission reduction.

What is pumped-storage power & hydropower?

Regulated pumped-storage power (PSP) and hydropower stations provide a solution by storing water resources during flood seasons and redistributing them during non-flood periods [4, 5]. This capability facilitates the grid system's seamless incorporation of variable renewable sources [6, 7], enhancing its reliability and stability [8, 9].

Can a power generation unit operate under a pump storage status?

In general, units cannot operate in the phase modulation for a long time under pump storage status. Rotating backup for power generation cannot be substituted by unit idling or phase modulation in power generation. Unit statuses cannot be switched between power generation and pump storage.

Should pumped-storage power stations be integrated with conventional hydropower reservoirs?

Integration types of pumped-storage power (PSP) stations/units and river reservoirs. In recent years, there has been a noteworthy focus on integrating PSP stations with conventional hydropower reservoirs to harness the full hydrological complementary potential and enhance the flexibility of power grid systems.

Does peak-shaving and valley-filling affect pumped-storage power output?

Optimizing peak-shaving and valley-filling (PS-VF) operation of a pumped-storage power (PSP) station has far-reaching influences on the synergies of hydropower output, power benefit, and carbon dioxide (CO 2) emission reduction. However, it is a great challenge, especially considering hydro-wind-photovoltaic-biomass power inputs.

How can pumped-storage power and hydropower reduce renewable uncertainty?

Pumped-storage power (PSP) and hydro are combined to reduce renewable uncertainty. An optimization model is developed to enhance complementarity of PSP and hydro. Multi-objective Salp Swarm Algorithm is used to optimize complementary operation. The approach spurs hydropower output, power benefits, and CO 2 emission reduction.