Modeling and Control of an Electro-Hydraulic Actuator Using Matlab Simulink

Abstract

Simulink model is constructed for an electro-hydraulic actuator (EHA). The Simulink model of the EHA consists of the piston dynamics, the oil flow dynamics, flow rates equations for the two chambers, and the equations for the check valves and relief valves. The EHA Simulink model describes the characteristics of the EHA well. PID control is used to verify the controllability of the EHA Simulink model.