ELECTRICALLY-DRIVEN PUMPING SYSTEM AND DRIVING METHOD THEREOF

An electrically-driven pumping system and a driving method thereof. The electrically-driven pumping system includes: a power generation device, at least one energy storage system, a main motor, a pumping device, an auxiliary device, and a first transformer. The first transformer includes an input end, a first output end, and a second output end, the power generation device is connected to the energy storage unit, the input end of the first transformer is connected to the energy storage unit, the first output end of the first transformer is electrically connected to the main motor, and the second output end of the first transformer is electrically connected to the auxiliary device. As such, the electrically-driven pumping system may avoid problems, such as the shutdown of the main motor caused by power failure of the power generation device, and ensure a continuous operation. Besides, the electrically-driven pumping system may make the power generation device operate highly efficiently for a long time under the condition of load variation, which improves the fuel economy.