液压混合动力挖掘机回转能量回收系统的设计和控制

胡均平; 刘振; 李科军; 何二春

doi:10.13433/j.cnki.1003-8728.2015.1219

液压混合动力挖掘机回转能量回收系统的设计和控制

doi: 10.13433/j.cnki.1003-8728.2015.1219

1.
中南大学机电工程学院, 长沙 410083

基金项目:

国家自然科学基金项目(51175518)与湖南省科技型中小企业技术创新基金立项项目(12C26214305029)资助

详细信息

作者简介:
胡均平(1965-),教授,博士生导师,研究方向为工程机械液压系统设计与仿真,yjrdfe1987@163.com

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- 文章访问数: 227
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- 被引次数: 0
出版历程
- 收稿日期: 2014-02-27
- 刊出日期: 2015-12-05

Designing Control of Slewing Energy Recovery System of Hybrid Hydraulic Excavator

1.
School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China

摘要

摘要: 为了解决挖掘机在回转阶段的能量回收再利用问题,基于压力共轨(CPR)液压混合动力技术设计了一个采用两个蓄能器的闭式回转制动能量回收系统。考虑到气体温度与热传递对蓄能器工作状态的影响,建立了系统的数学模型。为了提高回转制动的平稳性,减少回转装置的能量损失,设计了自适应模糊滑模控制器对回转速度进行跟踪控制。在Matlab平台上对系统进行仿真,结果表明:自适应模糊滑模控制器有较好鲁棒性、稳定性,可平稳控制回转装置;采用该系统可消除压力共轨系统二次元件之间的压力扰动,能够实现高达49.8%的再生能量用于驱动回转系统,比同吨位的液压挖掘机节能16.7%。
- 能量回收 /
- 液压混合动力 /
- 自适应模糊滑模控制 /
- 挖掘机
Abstract: A new common pressure rail (CPR) slewing energy recovery system with two accumulators was proposed for a hybrid hydraulic excavator in order to achieve energy recycling. Taking into account the influence of gas temperature and heat transfer on the accumulators' operating characteristics, we built its mathematical model. For braking stability, an adaptive fuzzy sliding mode controller was created to control the speed of the slewing mechanism. The analysis of simulation results with MATLAB software shows that the adaptive fuzzy sliding mode controller with good stability and robustness can control the speed steadily and can eliminate the pressure disturbance between secondary components in the CPR system. The slewing energy recovery system thus designed can increase the rotation speed of the CPR system up to 49.8% of the total, 16.7% more than the same tonnage excavators.
- acceleration /
- braking /
- computer simulation /
- control

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参考文献(15)

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