Design and Analysis of Electro-Hydraulic Servo System for Speed Control of Hydraulic Motor
محتوى المقالة الرئيسي
الملخص
In this study, the electro-hydraulic servo system for speed control of fixed displacement hydraulic motor using proportional valve and (PID) controller is investigated theoretically ,experimentally and simulation . The theoretical part includes the derivation of the nonlinear mathematical model equation of (valve – motor ) combination system and the derivation of the transfer function for the complete hydraulic system , the stability test of the system during the operation through the transfer function using MATLAB package
V7.1 have been done. An experimental part includes design and built hydraulic test rig and simple PID controller .The best PID gains have been calculated experimentally and simulation, speed control performance tests for the system at different thermal conditions for hydraulic oil have been done , Simulation analysis for (EHSS) using Automation Studio package V5.2 have been done . Comparison was made between experimental work and simulation work .The experimental results show good performance for (EHSS) using simple (PID) controller at hydraulic oil temperature around (60 – 70 ) and good speed response and performance for hydraulic motor with constant rotation speed (700) rpm with different load disturbance applied on the hydraulic motor .
تفاصيل المقالة
القسم
كيفية الاقتباس
المراجع
Aichao ; Xiangdong Z.; Gang L. .(2008)'' Simulation Study on Constant Speed Output Control of Fixed Displacement Pump-Variable Displacement Motor Hydraulic System'' Fluid Power and Mechatronics, IEEE Xplore. .PP 276 - 281.
Automation Studio (AS) user manual 2008, ''Automation Studio circuit design simulation software'', Fluid Power and Automation Technologies'',http://www. automation studio.com
Ambuel, J., Steenhoek, L., Smith, R., and Colvin, T.(1993) "Control of hydrostatic transmission output speed Development and comparison of PI and hybrid fuzzy-PI controllers", Transactions of the ASAE, Vol. 36, PP 1057 -1064.
Hossam. ,Mohammad El- Bardini (2011)"Implementation of speed controller for rotary hydraulic motor based on LS-SVM" journal of Expert system with applications . Vol.(38) PP.14249-14256.
Jacqueline ,Michael J.,Reza K. (2008) ,'' control engineering an introductory course '' Palgrave ,New work ,USA.
Dasgupta, J. Watton ,S. Pan (2005) ''Open-loop dynamic performance of a servo-valve controlled motor transmission system with pump loading using steady-state characteristics" journal of Mechanism and Machine Theory, Elsevier Ltd, Vol. (41) PP. 262-282.
Thrower , Kiefer S., Kelmer K., and Silverberg L. (1998) '' Basic Experiments in PID Control for Non-electrical Engineers'' Retrieved from http://www.mae.ncsu.edu/silverberg/piddocs.pdf.
Merritt , H. ( 1967) ,'' Hydraulic control systems'', John Wiley and Sons Inc, New York ,US ,first edition Vladimir . (2006) "Design and modeling of a new electro hydraulic actuator " National Library of Canada, M.Sc thesis ,Mechanical engineering ,Toronto ,Canada.
Web site 1 ''speed control for hydraulic motor'' from http://www.hydraulicspneumatics.com.
Yasukazu, (2000)"Rotational speed control of hydraulic motort using sliding mode control" Journal of Japan society of mechanical engineering, No. (00-1579) , PP.2559-2564.