Position control of an electro-pneumatic system based on PWM technique and FLC.
In this paper, modeling and PWM based control of an electro-pneumatic system, including the four 2-2 valves and a double acting cylinder are studied. Dynamic nonlinear behavior of the system, containing fast switching solenoid valves and a pneumatic cylinder, as well as electrical, magnetic, mechanical, and fluid subsystems are modeled. A DC-DC power converter is employed to improve solenoid valve performance and suppress system delay. Among different position control methods, a proportional integrator derivative (PID) controller and fuzzy logic controller (FLC) are evaluated. An experimental setup, using an AVR microcontroller is implemented. Simulation and experimental results verify the effectiveness of the proposed control strategies.
Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Sistan and Baluchestan, Iran.
Behrouz
B
Najjari
Faculty of Electrical and Computer Engineering, University of Sistan and Baluchestan Zahedan 98155-987, Sistan and Baluchestan, Iran. Electronic address: smbaraka@ece.usb.ac.ir.
S Masoud
SM
Barakati
Faculty of Electrical and Computer Engineering, University of Sistan and Baluchestan Zahedan 98155-987, Sistan and Baluchestan, Iran.
Ali
A
Mohammadi
Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Sistan and Baluchestan, Iran.
Muhammad J
MJ
Futohi
Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Sistan and Baluchestan, Iran.
Muhammad
M
Bostanian
Electro-pneumatic; Electromagnetic; Microcontroller; Modeling; PWM; Position control