Energy saving and Fuzzy-PID position control of electro-hydraulic system by leakage compensation through proportional flow control valve
Energy saving and Fuzzy-PID position control of electro-hydraulic system by leakage compensation through proportional flow control valve
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DOI：
10.1016/j.isatra.2020.01.003
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发表时间：
2020-06-01
期刊：
影响因子：
7.3
通讯作者：
Das, J.
中科院分区：
文献类型：
--
作者：
Wrat, Gyan;Bhola, Mohit;Das, J.
在这篇文章中，重点是能源效率沿着与位置控制的直线驱动器用于重型土方运输设备。很明显，线性执行器是建筑和采矿活动中使用的关键机械部件之一，如挖掘设备的吊杆。提出的工作采用了两种不同的液压回路，并进行了对比的能量效率。在一个液压回路中，传统的比例方向控制阀（PDCV）用于位置控制。在另一个，使用比例流量控制阀（PFCV）的创新解决方案，通过创建之间的执行器两端的人工泄漏，根据其能量效率进行评估。在位置控制期间，来自泵的额外流量由PFCV而不是PDCV中的泄压阀旁通。这减少了热量形式的能量损失并提高了液压回路的效率。利用MATLAB/Simulink对液压回路进行了仿真，并将仿真结果与实验结果进行了比较，发现采用PFCV的液压回路比采用PDCV的传统回路节能8.5%。执行机构的位置控制采用模糊控制器整定的PID控制器。(c)2020年伊萨。由爱思唯尔有限公司出版。保留所有权利。
In this article, the focus is on the energy efficiency along with the position control of the linear actuator used in heavy earth moving equipment. It is quite evident that linear actuators are one of the critical machinery components used in the construction and mining activities like in booms of excavation equipment. The proposed work employed two different hydraulic circuits and a contrast has been carried out in terms of the energy efficiency. In one hydraulic circuit, the conventional proportional directional control valve (PDCV) is used for the position control. In another one, an innovative solution of using proportional flow control valve (PFCV) by creating artificial leakage between the two ends of the actuator is evaluated according to its energy efficiency. The extra flow coming from the pump during position control is by-passed by PFCV rather than the pressure relief valve in PDCV. This reduces the energy loss in the form of heat and increases the efficiency of the hydraulic circuit. The simulation of the hydraulic circuit is performed using MATLAB/Simulink and results are compared with the experiments and it is found that hydraulic circuit using PFCV is 8.5% more energy efficient than the conventional circuit using PDCV. The position control of the actuator is done using PID controller tuned by the fuzzy controller. (c) 2020 ISA. Published by Elsevier Ltd. All rights reserved.