The increasing share of renewables in the power generation mix makes the power system
volatile to uncertain meteorological conditions. The stochastic nature of renewables …

Over the last decades, renewable energy sources have increased considerably their
generation share in power systems. As a consequence, in terms of frequency deviations …

Developing the joint operation of hydro and variable renewable energy has emerged as a
research trend, for handling the power variability. In recent years, variable-speed pumped …

In This article, the state of the art in the variable-speed operation of hydropower plants is
reviewed, with a focus on pumped-storage hydropower. Relevant literature is reviewed to …

The integration of hydropower and variable energy sources emerges as a functional method
for handling power variability. Due to the advantage of adjustable power input of the …

The variable speed unit (VSU) is one of the future directions of pumped storage power plant
(PSPP) technology. The combined operation of fixed speed unit (FSU) and VSU becomes …

This paper reviews state-of-the-art in variable-speed operation of hydropower plants, the
focus being on pumped-storage hydro. Relevant literatures are reviewed to address the …

As a new type of large-scale energy storage facility, variable-speed pumped-storage unit
(VSPSU) has unknown potential in providing flexibility for power system to help solve the …

This paper studies the nonlinear modeling and operation stability of variable speed pumped
storage power station (PSPS). Firstly, basic equations of variable speed PSPS are …

In recent times, much attention has been paid to small hydropower plants (SHPs) with
variable speed operation and different control techniques. Control complexity in SHPs is …