摘要
分析了具有超级电容和节能闭环液压系统的混合动力液压挖掘机的各种结构,对发动机转速和超级电容电压的稳定性等进行了研究。根据仿真结果,得出如下结论:节能闭环液压系统是混合动力液压挖掘机的关键,利用2个超级电容能获得更好的发动机转速稳定效果。研究结果证明,采用具有超级电容和节能闭环液压系统的混合动力液压挖掘机的油耗比传统液压挖掘机能减少60%左右。
The various structures of hybrid hydraulic excavator with super capacitance and energy-saving closed-loop hydraulic system were analyzed,and the engine speed and voltage stability of super capacitor were studied.According to the simulation results,the following are concluded：the energy-saving hydraulic closed-loop system is the key of hybrid hydraulic excavator,and better engine speed stable effect can be obtained by 2 super capacitances.Research result has proved that the consumption of hybrid hydraulic excavator with super capacitance and energy-saving closed-loop hydraulic system is about 60% less than that of traditional hydraulic excavator.
出处
《机床与液压》
北大核心
2012年第7期47-50,共4页
Machine Tool & Hydraulics
关键词
液压挖掘机
超级电容
节能闭环
混合动力
Hydraulic excavator
Super capacitance
Energy-saving closed-loop
Hybrid power
