Design and Analysis of Energy Saving System of Hydraulic Drive Hoist Based on Accumulator Energy Storage
In order to further improve the energy-saving effect of heavy-duty elevators,an energy-saving system of hydraulic drive heavy-duty elevators based on accumulator energy storage was designed to ensure a good match between energy storage and motor load.When the energy storage can provide more electric energy than the electric energy required by the motor during the working process,a capacitor can be set to absorb excess electric energy and reduce power loss.The results show that the negative electric energy conversion characteristic is formed when the elevator is running,which provides the driving force for the elevator.After the motor works,it will form a weak charging state,and the capacitor will begin to release electric energy to realize the energy-saving operation of the entire system.The energy loss decreases with the increase of load during downgoing,which indicates that the design has strong adaptability to load.This research helps to save the economic consumption of elevators and has a good significance for industrial efficiency.
elevatorhydraulic energy savingaccumulator energy storagecapacitive energy consumption
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