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.