Transient stability and voltage regulation in the framework of the interval type‐2 fuzzy model‐based control systems. Issue 7 (21st March 2019)

• Record Type: Journal Article
• Authors: Abbadi, Amel; Hamidia, Fethia
• Is Part Of: IEEJ transactions on electrical and electronic engineering. Volume 14:Issue 7(2019)
• Page Start: 1047
• Page End: 1053
• Publication Date: 2019-03-21
• Subjects: transient stability -- voltage regulation -- interval type‐2 fuzzy model‐based control system D‐stability -- Lyapunov stability theory -- parameter uncertainties; Electrical engineering -- Periodicals; Electronics -- Periodicals; 621.3
• DOI: 10.1002/tee.22899
• Languages: English
• ISSNs: 1931-4973

Abstract

Abstract : In this paper, the transient stability enhancement and voltage regulation of a multimachine power system are investigated taking into account the generator parameter uncertainties. An interval type‐2 Takagi–Sugeno (IT2 T‐S) fuzzy model is proposed to represent the nonlinear plant subject to parameter uncertainties. New basic concepts of the IT2 T‐S fuzzy model are proposed to reduce considerably the number of models adopted. A Lyapunov‐based approach is employed to analyze the stability and the pole placement of the IT2 fuzzy closed‐loop system formed by the IT‐2 T‐S fuzzy model and the IT‐2 fuzzy controller. This approach presents a simple closed mathematical form that provides the possibility to regulate the system under uncertain model parameters with closed‐loop design specifications as linear matrix inequality (LMI)‐based optimization problems without any assumptions about the membership functions. A simulation example is given to illustrate the effectiveness of the proposed IT‐2 fuzzy model‐based control approach. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.