Modeling and Control of Underwater Pumped Hydro Storage for Offshore Wind Power Utilization
Underwater pumped hydro storage(UPHS)is a novel energy storage method suitable for marine environments.To address the problem of imprecise UPHS models and limited applicability,this study presents a hydraulic-mechanical-electrical multilink transient model and conducts associated research.Firstly,we analyze and establish the physical model of UPHS components,including the pump-turbine,governor,motor,and converter.Subsequently,we design the control strategies for the prime mover and grid-connected converter.Finally,this paper performs electromagnetic transient simulations for stand-alone grid-connected UPHS and offshore wind power-UPHS bundling transmission scenarios under various working conditions.Simulation results confirm the model's reliability and demonstrate that underwater pumped hydro storage is feasible for smoothing offshore wind output power.
underwater pumped hydro storage(UPHS)transient modelcomplete power converter controlunderwater energy storageoffshore wind power
万方数据
维普
