The application of the bucket elevator is widely, effectively saving the electrical energy consumed by the bucket elevator are of great significance for the society of electrical energy savings, cost savings for manufacturers. 

 1, to improve the operating efficiency of the bucket elevator motor drive system, to achieve the purpose of energy saving of bucket elevator. 

 2, the mechanical load in the bucket elevator running through the bucket elevator energy converter is converted to electrical energy, to reduce the consumption of the bucket elevator on the electricity grid, to the bucket elevator energy-saving goals.