Power control strategy and performance evaluation of a novel electro-hydraulic energy-saving system
Power control strategy and performance evaluation of a novel electro-hydraulic energy-saving system
复制标题
新型电液节能系统功率控制策略及性能评估
DOI：
10.1016/j.apenergy.2018.10.066
复制
发表时间：
2019-01-01
期刊：
影响因子：
11.2
通讯作者：
Quan Weicai
中科院分区：
文献类型：
--
作者：
Gong Jun;Zhang Daqing;Quan Weicai
能量回收与再生是提高液压挖掘机燃油经济性的有效途径。提出了一种集回收再生装置于一体的新型电液节能系统。分析了挖掘机的工况及系统结构。实现了基于参数化规则的实时控制策略。研制了23吨液压挖掘机节能样机。从能耗、动作性能和系统舒适性等方面对样机进行了评价。结果表明，安装该节能系统的挖掘机比普通挖掘机节能约17.6%。降臂过程的制动时间约为常规系统的1.87倍。电动机是主要的振动源，液压系统冲击对舒适性的影响是间接的。研究结果为进一步优化系统提供了重要参考。
Energy recovery and regeneration comprise an effective way to improve hydraulic excavator fuel economy. This paper proposes a novel electro-hydraulic energy-saving system to integrate recovery and regeneration devices. The working conditions of excavators and system configuration of the proposed system are analyzed. A parametric rule-based strategy is implemented to real-time control. A energy-saving prototype is developed for a 23 ton hydraulic excavator. Several tests are carried out to evaluate the prototype from the perspectives of energy consumption, action performance, and system comfortableness. Results show that the excavator equipped with the energy-saving system can be reduced by approximately 17.6% compared with a conventional one. The braking time of the boom-lowering process is about 1.87 times that of the conventional system. The electric motor is the main vibration source, and the impact of hydraulic system shock on comfortableness is indirect. The results are important reference for further system optimization.