Login Register Cart 0
Generic placeholder image

Recent Patents on Mechanical Engineering

Editor-in-Chief

ISSN (Print): 2212-7976
ISSN (Online): 1874-477X

Back
Journal Home About Journal Editorial Board Journal Insight Current Issue Volumes/Issues
Subscribe
Research Article

Optimal Control Strategy of Electro-hydraulic Position Servo System Using Genetic Algorithm

Author(s): Xunyi Zhu, Bing Zhang* and Junsen Rao

Volume 17, Issue 1, 2024

Published on: 10 October, 2023

Page: [23 - 35] Pages: 13

DOI: 10.2174/0122127976257342230927055915

Price: $65

Abstract

Background: The optimal control strategy has been widely used in electro-hydraulic position servo systems to achieve high-precision position tracking. However, the difficulty of selecting the weighted matrices in optimal control often leads to poor tracking accuracy.

Objective: This patent proposes an optimal control strategy using a genetic algorithm to improve the tracking accuracy of the electro-hydraulic servo system.

Methods: The patent first established the system state equation of the valve-controlled asymmetric cylinder. Secondly, based on linear quadratic optimal control theory and genetic algorithm, an optimal control strategy using a genetic algorithm was proposed. Finally, the simulation and experimental results showed that the designed controller has high position tracking accuracy.

Results: The optimal controller using a genetic algorithm was designed using Matlab/Simulink, and the effectiveness of the controller was verified through simulation. Additionally, experimental results showed that the proposed optimal control controller using a genetic algorithm had higher tracking accuracy than the proportional-integral-derivative controller and traditional backstepping controller for a given reference signal.

Conclusion: The control technology of the optimal controller using a genetic algorithm was found to be superior to proportional-integral-derivative and traditional backstepping controllers, and the tracking error of the linear quadratic regulator controller was reported to be relatively small. This demonstrated the effectiveness of the optimal control strategy using a genetic algorithm in this patent.

« Previous Next »
[1]
Du H, He Y, Yang Y, Wang Y. Study on tie rod force characteristics in electro-hydraulic power steering system for heavy vehicle. Proc Inst Mech Eng, D J Automob Eng 2021; 235(2-3): 564-79.
[http://dx.doi.org/10.1177/0954407020957766]
[2]
Yang J. Hydraulic driving based intelligent vehicle height adjusting control structure, has first hydraulic cylinder, second hydraulic cylinder, third hydraulic cylinder and fourth hydraulic cylinder that are respectively fixed with middle supporting hydraulic cylinder. CN209552862-U, 2019.
[3]
Lai W, Li D, Xie Y. Simulation and experimental study of hydraulic cylinder in oscillating float-type wave energy converter. Pol Marit Res 2020; 27(2): 30-8.
[http://dx.doi.org/10.2478/pomr-2020-0024]
[4]
Harrold MJ, Thies PR, Newsam D, Bittencourt Ferreira C, Johanning L. Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering 10.
[http://dx.doi.org/10.1115/OMAE2019-96080]
[5]
Kimyanggu Lee. Energy recovery device comprises a hydraulic cylinder for adding hydraulic pressure to energy of high-pressure reverse osmosis concentrated seawater, includes hydraulic cylinder and hydraulic cylinder piston rod to serve as piston rod. KR2020054142-A, 2020.
[6]
Wang D, Zheng L, Yu H, Zhou W, Shao L. Robotic excavator motion control using a nonlinear proportional-integral controller and cross-coupled pre-compensation. Autom Construct 2016; 64: 1-6.
[http://dx.doi.org/10.1016/j.autcon.2015.12.024]
[7]
Feng H, Yin CB, Weng W, et al. Robotic excavator trajectory control using an improved GA based PID controller. Mech Syst Signal Process 2018; 105: 153-68.
[http://dx.doi.org/10.1016/j.ymssp.2017.12.014]
[8]
Shen W, Jiang J, Su X, Reza Karimi H. Control strategy analysis of the hydraulic hybrid excavator. J Franklin Inst 2015; 352(2): 541-61.
[http://dx.doi.org/10.1016/j.jfranklin.2014.04.007]
[9]
Sonoda M, Oki T, Shibata K, Ochiai M, Long XP. Hydraulic drive apparatus for hydraulic excavator has first hydraulic pump that supplies hydraulic oil to boom hydraulic cylinder and second hydraulic pump that supplies hydraulic oil to arm hydraulic cylinder and bucket hydraulic cylinder. JP2008045575-A, 2008.
[10]
Peng J. Movable double-layer hydraulic lift, has lower bottom plate connected with first hydraulic cylinder, second hydraulic cylinder, third hydraulic cylinder and fourth hydraulic cylinder, where lower end of second hydraulic cylinder is connected with ground. CN209427931-U, 2019.
[11]
Guo Q, Shi G, Wang D, He C, Hu J, Wang W. Iterative learning based output feedback control for electro-hydraulic loading system of a gait simulator. Mechatronics 2018; 54: 110-20.
[http://dx.doi.org/10.1016/j.mechatronics.2018.07.011]
[12]
Yang X, Ge Y, Deng W, Yao J, Zhou N. Active fault-tolerant Control for Hydraulic Actuating Cylinders of Aeroengine guidevane control mechanisms. J Chinese Society of Astronautics 2022; 43(9): 625464-25464.
[13]
Lopes RS, Nostrani MP, Carvalho LA, Dell’Amico A, Krus P, De Negri VJ. Modeling and Analysis of a Digital Hydraulic Actuator for Flight Control Surfaces. ASME/BATH 2021 Symposium on Fluid Power and Motion Control October 19–21, 2021; 2021.
[http://dx.doi.org/10.1115/FPMC2021-68923]
[14]
Yang M, Lu Y, Xia Y, Ma K. Adaptive sliding mode control for a hydraulic position servo system. Commun Comput Inf Sci 2022; 1700: 11-20.
[http://dx.doi.org/10.1007/978-981-19-7946-0_2]
[15]
Wan Z, Fu Y. Fuzzy wavelet neural network-based backstepping control for electro-hydraulic servo systems. 34th Chinese Control and Decision Conference (CCDC). Hefei, China. 2022.
[http://dx.doi.org/10.1109/CCDC55256.2022.10034042]
[16]
Feng H, Yin CB, Cao DH. Trajectory tracking of an electro-hydraulic servo system with an new friction model-based compensation. IEEE/ASME Trans Mechatron 28: 473-82.
[17]
Liao J, Zhou F, Zheng J. An improved parameter identification algorithm for the friction model of electro-hydraulic servo systems. Sensors (Basel) 2023; 23(4): 2076.
[http://dx.doi.org/10.3390/s23042076] [PMID: 36850674]
[18]
Yousef MA, Rabie MG, Rateb RA. System Identification and Controller Design for a Typical Electro-Hydraulic Servo Motor. 2021 International Telecommunications Conference (ITC-Egypt).
[19]
Xi GN, Li J, Sun CY, Zhang YY, Tang TM. Research progress in electro-hydraulic position servo controller. Appl Mech Mater 2014; 672-674: 1783-6.
[http://dx.doi.org/10.4028/www.scientific.net/AMM.672-674.1783]
[20]
Amiri MS, Ramli R, Ibrahim MF. Hybrid design of PID controller for four DoF lower limb exoskeleton. Appl Math Model 2019; 72: 17-27.
[http://dx.doi.org/10.1016/j.apm.2019.03.002]
[21]
Liu ZH, Deng SP, Jiang YX. Research of electro-hydraulic position servo system based on PID with disturbance observer. Key Eng Mater 2016; 693: 1752-7.
[http://dx.doi.org/10.4028/www.scientific.net/KEM.693.1752]
[22]
Tony Thomas A, Parameshwaran R, Sathiyavathi S, Vimala Starbino A. Improved position tracking performance of electro hydraulic actuator using PID and sliding mode controller. J IETE Journal of Research 2019; 68: 1-13.
[23]
Hsu Y, Zhu Y, Xu Y. Control method using proportional-integralderivation controller (PID) for e.g. robot involves adjusting control parameters of PID controller by analyzing position deviation, vibration value, and predetermined performance of PID controller. US2010262289-A1, 2010.
[24]
Feng H, Ma W, Yin C, Cao D. Trajectory control of electro-hydraulic position servo system using improved PSO-PID controller. Autom Construct 2021; 127: 103722.
[http://dx.doi.org/10.1016/j.autcon.2021.103722]
[25]
Zhao ZX, Huang XD, Li YJ, Ning YY. Electro hydraulic position servo system of automatic assembly platform based on neural network PID control. 6th International Conference on Automation, Control and Robots (ICACR).
[26]
Li P, He S, Wang Y, Zhou J, Wang L. Method of optimizing PID parameters of AC/DC cross-section converter based on gray wolf algorithm, involves updating position of wolves using PID parameters, and outputting alpha value of position for optimal PID parameter value. CN106896716-A, 2017.
[27]
Chen W, Dwan Z. Method for setting parameter of a PID controller, involves taking three PID parameters corresponding to optimal position as optimal PID parameter and outputting it. CN114637191-A, 2022.
[28]
Zhang H, Zhao JY, Wang YF, Zhang ZH, Ding HG, Man JX. Electro-hydraulic position servo system based on sliding mode active disturbance rejection compound control. J. Proc Inst Mech Eng, C J Mech Eng Sci 2021; 236: 2089-98.
[29]
Yang G, Yao J. Nonlinear adaptive output feedback robust control of hydraulic actuators with largely unknown modeling uncertainties. Appl Math Model 2020; 79: 824-42.
[http://dx.doi.org/10.1016/j.apm.2019.10.062]
[30]
Zhang W, Li S, Liu Y, Li D, He Q. Optimal control for hydraulic cylinder tracking displacement of wave energy experimental platform. Energies 2020; 13(11): 2876.
[http://dx.doi.org/10.3390/en13112876]
[31]
Guo Q, Yu T, Jiang D. Robust H∞ positional control of 2-DOF robotic arm driven by electro-hydraulic servo system. ISA Trans 2015; 59: 55-64.
[http://dx.doi.org/10.1016/j.isatra.2015.09.014] [PMID: 26478475]
[32]
Zhao H, Tang WX, Li CJ, Qian HJ, Su SJ. Linear quadratic optimal control of electro-hydraulic servo system based on feed-back linearization. J Machine Tool & Hydraulics 2016; 44(19): 51-5.
[33]
Han SH, Zang YB. Design of Optimal Controller for hydraulic servo system of PQF continuous rolling mill. J Machine Tool & Hydraulics 2020; 48(7): 81-5.
[34]
Ghazali R, Sam YM, Rahmat MF. Zulfatman, Hashim AWIM. Zulfatman, Hashim AWIM. Perfect tracking control with discrete-time LQR for a non-minimum phase electro-hydraulic actuator system. Int J Smart Sensing Intell Syst 2011; 4(3): 424-39.
[http://dx.doi.org/10.21307/ijssis-2017-448]
[35]
Borrás Pinilla C, Sarmiento JL, Guiza RD. Modelling, system identification and position control based on LQR formulation for an electro-hydraulic servo system. ASME 2019 International Mechanical Engineering Congress and Exposition.
[http://dx.doi.org/10.1115/IMECE2019-11505]
[36]
Mahdi S. Optimization of PID controller parameters based on genetic algorithm for non-linear electromechanical actuator. Int J Comput Appl 2014; 94(3): 11-20.
[http://dx.doi.org/10.5120/16322-5573]
[37]
Jaen-Cuellar AY de J, Romero-Troncoso R, Morales-Velazquez L. Osornio-Rios RA. PID-Controller Tuning Optimization with Genetic Algorithms in Servo Systems. Int J Adv Robot Syst 2013; 10(9): 324.
[http://dx.doi.org/10.5772/56697]

Rights & Permissions Print Cite
© 2024 Bentham Science Publishers | Privacy Policy