PID-P Controller for TITO Systems
| Authors: | Majhi Somanath, Indian Institute of Technology Guwahati, India
Padhy Prabin K., Indian Institute of Technology Guwahati, India
Atherton Derek P., University of Sussex, United Kingdom |
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| Topic: | 2.1 Control Design |
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| Session: | Control Design II |
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| Keywords: | PID-P controller, TITO system, Relay, Limit cycle, Identification |
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Abstract
A simple closed loop identification method is proposed to design a PID-P controller for TITO systems. A pair of relays is simultaneously connected in parallel with the PID controllers. Based on the limit cycle data, a diagonal TITO transfer function model of the system dynamics are obtained. Then the PID parameters are estimated using the identified model and phase and gain margin design criteria. The effectiveness of the proposed control scheme is illustrated by a simulation study.
