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Author

Lei Deng

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Open access Jul 2026

Research on Pressure Fluctuation and Vortex Evolution Characteristics in Pump-Turbine Under Load-Rejection Condition

During load rejection in pumped-storage power stations, the rotational speed of the pump-turbine increases abruptly. The consequent structural deterioration of the internal flow induces high-amplitude hydraulic excitations, posing a serious threat to the operational stability of the unit. This study investigates a Fran...

Lei Deng, Wenfu Han, Yuhao Yan et al. · 0 citations
Open access Jul 2026

Investigation of Hydraulic Instability During the Transient Process from Synchronous Condenser Pumping Mode to Pumping Mode

The transition process from synchronous condenser pump (SCP) mode to pumping mode determines the response rapidity of the startup procedure and operational stability of pump-turbines; however, the complex gas–liquid interaction and transient hydraulic characteristics during this process remain insufficiently understood...

Lei Deng, Longxiang Chen, Hai-Chao Feng et al. · 0 citations

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