Modelling and Controller Design of Electro-Pneumatic Actuator Based on PWM

Institute of Advanced Engineering and Science

Behrouz Najjari, S. Masoud Barakati, Ali Mohammadi, Mohammad Javad Fotuhi, Saeid Farahat, Mohammad Bostanian,

IAES International Journal of Robotics and Automation (IJRA), Vol 1, No 3: September 2012 , pp. 125-136


In this paper, a nonlinear model associated to the fast switching on-off solenoid valve and pneumatic cylinder was dynamically presented. Furthermore, an investigation into the electrical, magnetic, mechanical and fluid subsystems are made. Twocommon control policies to track valve position, a Proportional Integrator (PI) based on Pulse Width Modulation (PWM) and hysteresis controllers, are investigated. To control cylinder position, a Programmable Logic Controller (PLC) on a simulated unit and an experimental setup regulated with AVR microcontroller are carried out. Experimental results show effective validation to the simulation results from PLC. DOI:

Publisher: Institute of Advanced Engineering and Science

Publish Date: 2012-09-01

Publish Year: 2012

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