Design of Energy Saving System of Pump Controlled Hydraulic Stretch Pad
Pump controlled hydraulic stretch pad is a common mechanical component of press.Aiming at the problem of power waste caused by regenerative braking energy consumed by brake resistance,a hybrid energy saving system with common DC bus and capacitor energy storage and its control strategy are designed.Firstly,each module of the hybrid energy saving system is studied,and the feasibility of the design is explained through mathematical modeling and analysis.Secondly,the simulation model of the hydraulic system and energy-saving system of the pump controlled hydraulic stretch pad is established,and the simulation analysis is carried out under the load of 20 kN.Finally,the pump controlled hydraulic stretch pad test platform is set up,and the experiment is verified.The simulation and experimental results show that the hybrid energy-saving system can achieve a good energy-saving effect,and the energy-saving efficiency of the system reaches 41.9％.
hydraulic stretch padcommon DC buscapacitive energy storageenergy-saving efficiency
万方数据
维普
