Can pumped storage units transform a hydropower plant into a hybrid energy system?

This paper mainly focuses on a hybrid energy system comprising a hydropower plant (HPP), wind power station, photovoltaic station, and pumped storage station, as shown in Figure 1. Among the components of the system, pumped storage units are used to transform a conventional cascade hydropower plant into a hybrid pumped storage station.

Can hydropower and pumped storage integrate wind and photovoltaic power?

Hence, utilizing hydropower and pumped storage in conjunction with wind and photovoltaic power generation on the supply side represents an effective approach to integrating wind and photovoltaic power and ensuring the stable operation of the grid .

Is a cascade energy storage system based on a hydropower station?

However, the complementary operation and day-ahead optimal scheduling of a cascade energy storage system and wind and solar energy are mostly based on hydropower stations. This approach lacks engineering application-level optimization models with smaller time scales, failing to fully demonstrate the flexibility of power system regulation.

What is a hydropower-wind-photovoltaic pumping station?

Compared with conventional hydropower-wind-photovoltaic (CHP-wind-PV for short hereafter) system, the pumping station can use the excess electricity from hydropower, wind power and PV plants or purchased from the power grid to pump water from the lower reservoir to the upper reservoir, thus achieving energy storage and efficient energy utilization.

Can hydropower plants be converted to pumped storage?

There are studies considering the conversion of run-off-river hydropower plants , water supply reservoirs , or conventional hydropower plants to pumped storage, most of which are small-scale and do not consider the joint operation of hydraulic turbines and pumping stations with wind and PV plants.

What is a photovoltaic system?

This system is equipped with a photovoltaic (PV) system array, a wind turbine, an energy storage system (pumped-hydro storage), a control station and an end-user (load). This whole system can be isolated from the grid, i.e., a standalone system or in a grid connection where the control station can be the grid inertia capacity.