A study on the energy regeneration system of boom for hybrid hydraulic excavator

Nowadays, energy crisis and pollution have become a serious problem in the world. Saving energy of construction machinery, especially the hydraulic excavator is very essential. Potential gravitational energy regeneration is an effective solution to reduce the energy consumption of the hydraulic excavator. This paper proposes a new hybrid hydraulic excavator boom system and designs a new control strategy. In this system have three modes for boom down. The proposed energy regeneration system is verified through simulation result which is done in the AMESim software. By analyzing simulation result, the proposed system can perform very efficiently. Meanwhile, the proposed system is also compared with conventional one. By comparing and analyzing the simulation results, it seen that the new system has a better efficiency and decrease the energy consumption significantly. All parameters are taken from the real system.