XFLEX Hydro

Implications of ENTSO-E scenarios TYNDP 2022 on future electricity market behavior, reserve demand, and prices

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Computation fluid dynamics investigation of the flow in junctions: application to hydraulic short circuit operating mode

Key words: CFD; RANS; hydraulic shortcircuit; OpenFOAM

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Paper

Stress-informed control of medium- and high-head hydropower plants to reduce penstock fatigue

Key words: IMPC, simulation, penstock

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Paper

CFD and FEM analysis to migrate from fixed- to variable-speed on the Alto Lindoso HPP

Key words: DFIM, FEM analysis

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Paper

Towards accurate vibration prediction of pump-turbine runners in deep partial load operation

Key words: DPL operating points, FSI modelling, Finite Element analyses

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Paper

Contribution for the roadmap of hydraulic short circuit implementation: Case of Grand-Maison pumped storage power plant

Key words: HSC, 1D model, transient issues

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Paper

Numerical investigation of the structural behaviour of a headwater bifurcation in hydraulic short circuit

Key words: HSC operation, CFD pressure fluctuations

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Paper

Pushing the envelope of ancillary services with variable speed technology

Key words: variable speed, DFIM

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Paper

Diagnostics of a hydraulic turbine failure

Key words: Failure analysis, Diagnostics, thrust bearing damage

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Paper

CFD simulations of hydraulic short-circuits in junctions, application to the Grand'Maison power plant

Key words: HSC operating mode, CFD simulations

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Paper

Water saving options in hydropower by means of variable speed operation: A prototype study in a mid-head Francis turbine

Key words: Variable speed operation, Francis Turbine, Doubly Fed Induction Machine

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Paper

Numerical fatigue damage analysis of a variable speed Francis pump-turbine during start-up in generating mode

Key words: variable speed, FSFC, CFD/FEA simulations

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Paper

Towards accurate numerical fluid dynamics of pump-turbine runners in deep partial load operation

Key words: CFD simulations, SST and SBES turbulence model,

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Paper

Assessments of hydropower plants start-up sequences and equivalent runner damage under transient operation

Key words: speed-no-load, transient sequences

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Paper

Optimization of turbine start-up sequence of a full size frequency converter variable speed pump-turbine

Key words: Full Size Frequency Converter, hydraulic transient simulations

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Paper

Artificial neural networks for predicting the onset of overload instability in Francis turbines

Key words: Best Efficiency Point, Francis turbine, artificial intelligence techniques

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Paper

Hybridization of a RoR HPP with a BESS—The XFLEX HYDRO Vogelgrun Demonstrator

Explore innovative strategies to enhance the flexibility and efficiency of hydropower systems in a rapidly evolving energy landscape.

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Paper

Determination of the natural frequencies of a prototype Kaplan turbine

Key words: natural frequencies, Kaplan turbine

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Paper

Hybridization in Kaplan turbines. Wear and tear assessment

Key words: Frequency containment reserve, hybrid mode

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Paper

Power plant transients including hydraulic short circuit operation mode

Key words: power plant transients, hydraulic short circuit mode

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Paper

XFLEX HYDRO demonstrators grid services assessment and ancillary services matrix elaboration

Key words: Ancillary Services Matrix

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Paper

Inertia emulation contribution of Frades 2 variable speed pump-turbine to power network stability

Key words: variable speed, 1D SIMSEN

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Paper

XFLEX Hydro technology models’ documentation

To evaluate the performance of different hydroelectric technologies and solutions under development…

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Paper

Improving frequency containment reserve provision in run-of-river hydropower plants

Key words: Frequency containment reserve, Optimal control

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Paper

Distributed real-time model of the M3C for HIL systems using small-scale simulators

Key words: Real-time systems , Matrix converters

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Paper

Strain prediction in Francis runners by means of stationary sensors

Key words: Francis turbine, AI, linear regression models

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Paper

Increasing the operating range and energy production in Francis turbines by an early detection of the overload instability

Key words: Francis turbine, PCA, SOM

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Paper

Performance assessment of linear models of hydropower plants

Key words: linearization strategies, Taylor expansion

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Paper

On the use of neural networks for dynamic stress prediction in Francis turbines by means of stationary sensors

Key words: Francis turbine, neural network-based method

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Paper

Optimal CAM Computation of Kaplan Turbines Accounting for Wear and Tear Originated by Frequency Control

Key words: Time-frequency analysis , Power system stability , Control systems

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Paper

CFD simulations of a Y-junction for the implementation of hydraulic short-circuit operating mode

Key words: HSC, CFD simulations

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Paper

Turbine mode start-up simulation of a FSFC variable speed pump-turbine prototype – Part I: 1D simulation

key words: FSFC, CFD simulations

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Paper

Experimental facility for reduced scale model testing of hydraulic machines hybridized with a battery energy storage system

Key words: hybridisation, battery storage

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Paper

Turbine mode start-up simulation of a variable speed Francis pump-turbine prototype – Part II: 3-D unsteady CFD and FEM

Key words: FSFC, FEM analyses

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Paper

Digitalization in hydropower generation: development and numerical validation of a model-based Smart Power Plant Supervisor

Key words: SPPS, RoR, simulations

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Paper

Improved damage detection in Pelton turbines using optimized condition indicators and data-driven techniques

Key words: Pelton turbine, vibration indicators

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Paper

Flexibility enhancements in pumped hydro storage power plants through variable speed drives

Key words: Torque , Frequency conversion , Rotors

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Paper

Reduction of penstock fatigue in a medium-head hydropower plant providing primary frequency control

Key words: Hydraulic transient, wear and tear, PFC

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Methodology for costing the XFLEX HYDRO technologies.

Methodology and assumptions for evaluating the profitability of these technologies.

Implications of ENTSO-E scenarios TYNDP 2022 on future electricity market behavior, reserve demand, and prices

Computation fluid dynamics investigation of the flow in junctions: application to hydraulic short circuit operating mode

Stress-informed control of medium- and high-head hydropower plants to reduce penstock fatigue

CFD and FEM analysis to migrate from fixed- to variable-speed on the Alto Lindoso HPP

Towards accurate vibration prediction of pump-turbine runners in deep partial load operation

Contribution for the roadmap of hydraulic short circuit implementation: Case of Grand-Maison pumped storage power plant

Numerical investigation of the structural behaviour of a headwater bifurcation in hydraulic short circuit

Pushing the envelope of ancillary services with variable speed technology

Diagnostics of a hydraulic turbine failure

CFD simulations of hydraulic short-circuits in junctions, application to the Grand'Maison power plant

Water saving options in hydropower by means of variable speed operation: A prototype study in a mid-head Francis turbine

Numerical fatigue damage analysis of a variable speed Francis pump-turbine during start-up in generating mode

Towards accurate numerical fluid dynamics of pump-turbine runners in deep partial load operation

Assessments of hydropower plants start-up sequences and equivalent runner damage under transient operation

Optimization of turbine start-up sequence of a full size frequency converter variable speed pump-turbine

Artificial neural networks for predicting the onset of overload instability in Francis turbines

Hybridization of a RoR HPP with a BESS—The XFLEX HYDRO Vogelgrun Demonstrator

Determination of the natural frequencies of a prototype Kaplan turbine

Hybridization in Kaplan turbines. Wear and tear assessment

Power plant transients including hydraulic short circuit operation mode

XFLEX HYDRO demonstrators grid services assessment and ancillary services matrix elaboration

Inertia emulation contribution of Frades 2 variable speed pump-turbine to power network stability

XFLEX Hydro technology models’ documentation

Improving frequency containment reserve provision in run-of-river hydropower plants

Distributed real-time model of the M3C for HIL systems using small-scale simulators

Strain prediction in Francis runners by means of stationary sensors

Increasing the operating range and energy production in Francis turbines by an early detection of the overload instability

Performance assessment of linear models of hydropower plants

On the use of neural networks for dynamic stress prediction in Francis turbines by means of stationary sensors

Optimal CAM Computation of Kaplan Turbines Accounting for Wear and Tear Originated by Frequency Control

CFD simulations of a Y-junction for the implementation of hydraulic short-circuit operating mode

Turbine mode start-up simulation of a FSFC variable speed pump-turbine prototype – Part I: 1D simulation

Experimental facility for reduced scale model testing of hydraulic machines hybridized with a battery energy storage system

Turbine mode start-up simulation of a variable speed Francis pump-turbine prototype – Part II: 3-D unsteady CFD and FEM

Digitalization in hydropower generation: development and numerical validation of a model-based Smart Power Plant Supervisor

Improved damage detection in Pelton turbines using optimized condition indicators and data-driven techniques

Flexibility enhancements in pumped hydro storage power plants through variable speed drives

Reduction of penstock fatigue in a medium-head hydropower plant providing primary frequency control