An optimal controller for an electro-hydraulic system

In this paper, an advanced controller is presented for position tracking control and minimizing control energy of an electro-hydraulic system. An index function is first formulated for the closed-loop performance. The optimal control input is then calculated based on the Taylor series expansion of the index function. For providing information to the control design, mathematical model of the EHS is also derived. Finally, effectiveness of the proposed controller is successfully validated through experimental results of different testing conditions.

[1]  Ayman A. Aly,et al.  PID Parameters Optimization Using Genetic Algorithm Technique for Electrohydraulic Servo Control System , 2011 .

[2]  Mohieddine Jelali,et al.  Hydraulic Servo-systems: Modelling, Identification and Control , 2012 .

[3]  Heidar Ali Talebi,et al.  An energy-saving nonlinear position control strategy for electro-hydraulic servo systems. , 2015, ISA transactions.

[4]  Junzheng Wang,et al.  Fractional order control to the electro-hydraulic system in insulator fatigue test device , 2013 .

[5]  Bin Yao,et al.  Energy-Saving Adaptive Robust Control of a Hydraulic Manipulator Using Five Cartridge Valves With an Accumulator , 2014, IEEE Transactions on Industrial Electronics.

[6]  C. Chung,et al.  Output feedback nonlinear control for electro-hydraulic systems , 2012 .

[7]  Cheng Guan,et al.  Adaptive sliding mode control of electro-hydraulic system with nonlinear unknown parameters , 2008 .

[8]  Maolin Jin,et al.  Adaptive Backstepping Control of an Electrohydraulic Actuator , 2014, IEEE/ASME Transactions on Mechatronics.

[9]  Bin Yao,et al.  Indirect Adaptive Robust Control of Hydraulic Manipulators With Accurate Parameter Estimates , 2011, IEEE Transactions on Control Systems Technology.

[10]  Bin Yao,et al.  Integrated Direct/Indirect Adaptive Robust Control of Hydraulic Manipulators With Valve Deadband , 2011, IEEE/ASME Transactions on Mechatronics.

[11]  Vladimir Milić,et al.  Robust Hinfinity position control synthesis of an electro-hydraulic servo system. , 2010, ISA transactions.

[12]  Kyoung Kwan Ahn,et al.  Force control for press machines using an online smart tuning fuzzy PID based on a robust extended Kalman filter , 2011, Expert Syst. Appl..

[13]  Masayoshi Tomizuka,et al.  Flatness-Based Nonlinear Control for Position Tracking of Electrohydraulic Systems , 2015, IEEE/ASME Transactions on Mechatronics.

[14]  Andreas Ritter,et al.  Hydraulic Control Systems , 2016 .