Daan P. K. Truijen
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View article: Analysis of a contra-rotating pump–turbine for low-head applications: An experimental study and numerical comparison
Analysis of a contra-rotating pump–turbine for low-head applications: An experimental study and numerical comparison Open
Low-head pumped hydro storage technology has been identified as a promising contributor to grid-scale energy storage and the provision of ancillary services. Low-head systems have differing characteristics compared to conventional high-hea…
View article: Low‐head pumped hydro storage: An evaluation of energy balancing and frequency support
Low‐head pumped hydro storage: An evaluation of energy balancing and frequency support Open
Large‐scale energy storage solutions are crucial to ensure grid stability and reliability in the ongoing energy transition towards a low‐carbon, renewable energy based electricity supply. This article presents the evaluation of a novel low…
View article: Hardware-in-the-loop emulator test-setup for a dual-rotor contra-rotating pump-turbine
Hardware-in-the-loop emulator test-setup for a dual-rotor contra-rotating pump-turbine Open
Recently, contra-rotating reversible pump-turbines (CR RPTs) have been proposed to increase the efficiency of low-head pumped hydropower storage applications, which are promising to provide energy storage for non-mountainous regions. To st…
View article: Impact of Dual Variable Speed and Inlet Valve Control on the Efficiency and Operating Range of Low-Head Contra-Rotating Pump-Turbines
Impact of Dual Variable Speed and Inlet Valve Control on the Efficiency and Operating Range of Low-Head Contra-Rotating Pump-Turbines Open
In an effort to make pumped hydropower storage (PHS) technology feasible for regions with a flat topography, recent research shows promising results using a contra-rotating reversible pump-turbine at low-head. In this study, the impact of …
View article: The contribution of low‐head pumped hydro storage to grid stability in future power systems
The contribution of low‐head pumped hydro storage to grid stability in future power systems Open
The pan‐European power grid is experiencing an increasing penetration of Variable Renewable Energy (VRE). The fluctuating and non‐dispatchable nature of VRE hinders them in providing the Ancillary Service (AS) needed for the reliability an…
View article: Axial Flux PMSM Power Take-Off for a Rim-Driven Contra-Rotating Pump-Turbine
Axial Flux PMSM Power Take-Off for a Rim-Driven Contra-Rotating Pump-Turbine Open
Pumped hydropower storage (PHS) is a costeffective and mature energy storage technology. However, it has inherently been limited to locations with suitable topographies. Therefore, the ALPHEUS project aims to implement PHS for shallow seas…
View article: Low-head pumped hydro storage: A review of applicable technologies for design, grid integration, control and modelling
Low-head pumped hydro storage: A review of applicable technologies for design, grid integration, control and modelling Open
To counteract a potential reduction in grid stability caused by a rapidly growing share of intermittent renewable energy sources within our electrical grids, large scale deployment of energy storage will become indispensable. Pumped hydro …
View article: Drivetrain Architectures for a Mechanically Decoupled Contra-Rotating Reversible Pump-Turbine
Drivetrain Architectures for a Mechanically Decoupled Contra-Rotating Reversible Pump-Turbine Open
With the rise of renewable energy production in the pan-European grid, the need for flexible energy storage is experiencing a rapid increase. Pumped hydropower storage has proven viability due to its long lifespan and cost-effectiveness. T…
View article: The contribution of low-head pumped hydro storage to a successful energy transition
The contribution of low-head pumped hydro storage to a successful energy transition Open
The pan-European power grid is experiencing an increasing penetration of Variable Renewable Energy (VRE). The fluctuating and non-dispatchable nature of VRE hinders them in providing the Ancillary Service (AS) needed for the reliability an…