HYDRODYNA Phase 2: Breakthrough a technology gap in mastering the dynamic behavior of pump-turbine

• Research unit: INNOSUISSE
• Project number: 9189.2;5 PFIW-IW

Short description (English)

HYDRODYNA Phase 2: Breakthrough a technology gap in mastering the dynamic behavior of pump-turbine

Short description (French)

HYDRODYNA Phase 2: Breakthrough a technology gap in mastering the dynamic behavior of pump-turbine

Abstract (English)

Pumped storage power plants are the key components for the development of new renewable CO2-freeprimary energies and the security enhancement of the country wide electricity delivery. Reversible pump-turbine technology enables to store large amount of extra electrical energy and to quickly supply extra needsof power. However, the fast and frequent changes between pumping and generating modes yield to engineerpump-turbine experiencing very high unsteady hydrodynamic forces. Therefore the project objective is todevelop a methodology for engineering safe pump-turbines meeting the challenging requirements of thehydropower market. Discovery experiments will be conducted with the HYDRODYNA pump-turbine model foroperating conditions at the origin of those high dynamic loads which could endanger the time span of thepump-turbines. Computing methodology will be developed and validated with experimental results data toperform numerical simulations of periodic rotor-stator interactions which include fluid-structure coupling.

Abstract (French)

Pumped storage power plants are the key components for the development of new renewable CO2-freeprimary energies and the security enhancement of the country wide electricity delivery. Reversible pump-turbine technology enables to store large amount of extra electrical energy and to quickly supply extra needsof power. However, the fast and frequent changes between pumping and generating modes yield to engineerpump-turbine experiencing very high unsteady hydrodynamic forces. Therefore the project objective is todevelop a methodology for engineering safe pump-turbines meeting the challenging requirements of thehydropower market. Discovery experiments will be conducted with the HYDRODYNA pump-turbine model foroperating conditions at the origin of those high dynamic loads which could endanger the time span of thepump-turbines. Computing methodology will be developed and validated with experimental results data toperform numerical simulations of periodic rotor-stator interactions which include fluid-structure coupling.