In the high-head reversible pump-turbines, the most unfavourable hydraulic instability is the
unstable pressure fluctuations in the vaneless space caused by interactions between the …

The dynamic behavior of a reversible pump turbine (RPT) during the load rejection process
was investigated through numerical simulation and experimental testing. The study focused …

Pumped storage hydro (PSH) is a mature and widely used energy storage technique. The
hydraulic dissipation of PSH will lead to the decline of power station efficiency. Therefore, it …

The development of high-head pumped-storage projects presents various opportunities and
challenges. One challenge is the operational stability of pumped-storage power plants …

Pumped storage unit is a typical energy storage system in electric power grid system. Flow
energy dissipation (FED) is a key factor affecting energy utilization efficiency. Guide vane …

Pumped-storage power plants change operating conditions frequently, which seriously
affects the safe operation of the unit operating under non-design conditions. In this study, the …

In this study, the unsteady flow of an ultra-high-head model pump turbine in pump mode is
numerically investigated, revealing the evolution mechanism of unsteady flow diffusion and …

With the increase in the designed net head and output capacity, the operational stability of
the pump turbine, which is the core component of a pumped storage power station, requires …

The pump–turbine unit used in pumped-storage power generation plays a role in backing up
and adjusting the power system in a flexible power generation facility, providing stability in …

Reversible pump-turbines are the core component in most pumped storage power stations
worldwide; however, their performances are worst affected by the unstable hydraulic …