NDLI: Graphical computation of gain and phase margin specifications-oriented robust PID controllers for uncertain systems with time-varying delay

Content Provider	IEEE Xplore Digital Library
Author	Wang Yuan-Jay Huang Jian-Jie Shih Shang-Hong Lai Yan-Chang Ding Jia-Jun
Copyright Year	2010
Description	Author affiliation: Department of Electrical Engineering, Tungnan University, Taiwan (Wang Yuan-Jay; Huang Jian-Jie; Shih Shang-Hong; Lai Yan-Chang; Ding Jia-Jun)
Abstract	In this paper, a novel graphical method is proposed for computing all feasible gain and phase margin specifications-oriented robust PID controllers to stabilize uncertain systems with time-varying delay. A virtual gain phase margin tester compensator is incorporated. The coefficient values of the characteristic equation of the considered system are overbounded and eight vertex Kharitonov polynomials are obtained. The stability equation method accompanied with parameter plane analysis is carried out to portray the constant gain margin and phase margin boundaries. The feasible controllers which stabilize every one of the eight vertex polynomials are identified. The union region of the useful specifications-oriented parameter region of each vertex polynomial is the Kharitonov region which represents all of the admissible specifications-oriented robust PID controller gains set. A computer simulation is provided to demonstrate the effectiveness and confirm validity of the proposed controller.
Starting Page	2034
Ending Page	2040
File Size	282768
Page Count	7
File Format	PDF
ISBN	9781424462636
e-ISBN	9787894631046
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-29
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Chinese Association of Aut
Subject Keyword	Uncertain systems Kharitonov Complex Theorem PID Controller Delay effects Stability Equation Method Process control Polynomials Stability analysis Robustness Delay Interval Plants Parameter Plane Method
Content Type	Text
Resource Type	Article

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