Fuzzy Controllers for Position Control Electro-Hydraulic Actuators

摘要

This paper describes fuzzy controllers of an electro-hydraulic actuator in the control loop. The aim of research is to reduce steady-state error and a time response as short as possible. The electro-hydraulic actuator mathematical model is design taking into account the functional jet pipe servo-valve. This model is used to numerically simulate the functioning of the system. The model uses mass flow ratios to provide a more stable and realistic numerical simulation. Dynamic modeling provides to study the behavior of a servo with various controllers in the control loop. Through simulation, the proportional controller and the types of fuzzy controllers are tested. The controllers are implemented in MATLAB/SIMULINK. The fuzzy controllers are an intelligent technique to reduce steady-state error and time response.