Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Thesis Talarcek.pdf (1.89 MB)

ETD Abstract Container

Abstract Header

An Experimental Study of Disturbance Compensation and Control for a Fractional-Order System

Talarcek, Steven C
http://rave.ohiolink.edu/etdc/view?acc_num=akron1542303891784113

Abstract Details

2018, Master of Science in Engineering, University of Akron, Electrical Engineering.
This document is an experimental study of disturbance compensation and control for a fractional-order system. The system examined is an insulated aluminum bar. A thermal excitation is applied to the system using a peltier actuator at one end of the bar, and the temperature response is measured using a sensor placed on the side of the bar close to the actuated end. The transfer function governing the thermal bar dynamics from the applied thermal input to the measured temperature output is that of a half-order integrator. A model for the additional actuator components in the system is derived using the physics governing the Peltier Effect, the Seebeck Effect, and joule heating, along with the heat conduction through the peltier actuator and its heat sink. To allow the use of standard control system design methods, the half-order integrator is approximated by an integer-order transfer function. The thermal actuator model and the approximation of the fractional-order component are combined as a design model for open-loop, closed-loop, and bridged-T control laws for the thermal system. The control systems implemented use a microcontroller, a digital-to-analog circuit, and an H-bridge circuit to drive the peltier actuator. Data samples from a one-wire temperature sensor are utilized for feedback and to record the experimental results. The final implemented control system has a step response with zero steady-state error. The transient response has a settling time of 118 seconds, as compared with 1.2 hours for the uncompensated open-loop system. The results show that open-loop control, based on an accurate system model, combined with a simple integral feedback control is highly effective for this fractional-order system.
Dr. Robert Veillette (Advisor)
Dr. Jay Adams (Committee Member)
Dr. Alexis De Abreu Garcia (Committee Member)
109 p.
Electrical Engineering
Fractional-order; Open-loop control; Closed-loop control; Bridged-T control; Peltier Effect; Seebeck Effect; Joule heating; Heat conduction; Charef approximation; One-wire device

Recommended Citations

Citations

  • Talarcek, S. C. (2018). An Experimental Study of Disturbance Compensation and Control for a Fractional-Order System [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1542303891784113

    APA Style (7th edition)

  • Talarcek, Steven. An Experimental Study of Disturbance Compensation and Control for a Fractional-Order System. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1542303891784113.

    MLA Style (8th edition)

  • Talarcek, Steven. "An Experimental Study of Disturbance Compensation and Control for a Fractional-Order System." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1542303891784113

    Chicago Manual of Style (17th edition)

akron1542303891784113
216
© 2018, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.