Pump Turbines Under Near-Zero Flow Conditions: A Review of Flow Instabilities, Guide Vane Dynamics, and Mitigation Strategies
The grid volatility caused by the integration of wind and solar power poses challenges to power systems, where Pumped Storage Hydropower (PSH) plays an irreplaceable role. During start-up, shutdown, and mode transition of pump turbines, near-zero flow conditions frequently occur, leading to severe hydraulic instability...