Variable-speed constant-frequency pumped storage power station based on double-grid-connected mode

The utility model provides a variable-speed constant-frequency pumped storage power station based on a double-grid-connected mode, and relates to the technical field of pumped storage power stations. A variable-speed constant-frequency pumped storage power station based on a double-grid-connected mode comprises a monitoring module, a cooperative controller, a generator motor, a single-pole double-throw switch, a full-power converter, a main transformer, a speed regulator and a pump turbine. The single-pole double-throw switch is connected with the main transformer through a bypass bus, and the main transformer is connected into a power grid. The monitoring module is connected with the full-power converter through the cooperative controller, the full-power converter is connected with the generator motor, and the cooperative controller is connected with the pump turbine through the speed regulator. The converter mode is a main working mode, the bypass mode is used only when the full-power converter breaks down,