CONTROL METHOD AND SYSTEM FOR HYDRAULIC WIND FARMS WITH PUMPED ACCUMULATION

摘要

The system can work in zero-flow operation mode, which involves closing the flow control elements or injectors (6) that reduce the flow turbined by the hydraulic unit (1) to zero, or in frequency-regulated operation, in which a drop in the frequency of the grid or in the derivative of the frequency or in the speed or in the derivative of the speed of the hydraulic unit or in a combination of these values in relation to some thresholds quickly opens the flow control elements or injectors (6) to generate and supply power to the grid (2) almost instantly