Experimental Evaluation of Automatic Tuning of PID Controllers for an Electro-Mechanical System. Issue 1 (July 2017)

• Record Type: Journal Article
• Authors: Wang, Liuping; Freeman, Chris; Rogers, Eric
• Is Part Of: IFAC-PapersOnLine. Volume 50:Issue 1(2017)
• Page Start: 3063
• Page End: 3068
• Publication Date: 2017-07
• Subjects: Integrating systems -- electro-mechanical systems -- automatic tuning of PID controllers -- experimental evaluation; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2017.08.676
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: Integrating processes are widely encountered in electro-mechanical systems and other areas. Automatic tuning of PID controllers for this type of system requires special consideration since the underlying system is unstable. Using relay feedback control in a closed-loop setting, an auto-tuner is designed to systematically find the controller parameters using a frequency sampling filter model. The performance of this auto-tuner is evaluated on an electro-mechanical experimental test facility that can be configured to operate in either as a single-input, single-output or multiple-input, multiple-output system. The experimental results demonstrate that when the interaction the between control loops is weak, the auto-tuner produces closed-loop performance that matches the specification, but this performance gradually decays as the level of interaction increases. The experimental results can also serve as experimental benchmarks to compare competing designs.