Adaptive PID Controller Using RLS for SISO Stable and Unstable Systems. (7th October 2014)

• Record Type: Journal Article
• Authors: Fahmy, Rania A.; Badr, Ragia I.; Rahman, Farouk A.
• Other Names: Profumo Francesco Academic Editor.
• Is Part Of: Advances in power electronics. Volume 2014(2014)
• Publication Date: 2014-10-07
• Subjects: Power electronics -- Periodicals; Power electronics; Periodicals; Electronic journals; 621.317
• DOI: 10.1155/2014/507142
• Languages: English
• ISSNs: 2090-181X

Abstract

Abstract : The proportional-integral-derivative (PID) is still the most common controller and stabilizer used in industry due to its simplicity and ease of implementation. In most of the real applications, the controlled system has parameters which slowly vary or are uncertain. Thus, PID gains must be adapted to cope with such changes. In this paper, adaptive PID (APID) controller is proposed using the recursive least square (RLS) algorithm. RLS algorithm is used to update the PID gains in real time (as system operates) to force the actual system to behave like a desired reference model. Computer simulations are given to demonstrate the effectiveness of the proposed APID controller on SISO stable and unstable systems considering the presence of changes in the systems parameters.