Design of Robust Double-Fuzzy-Summation Nonparallel Distributed Compensation Controller for Chaotic Power Systems

Author:

Vafamand Navid1,Khooban Mohammad Hassan2,Khayatian Alireza3,Blabbjerg Frede2

Affiliation:

1. School of Electrical and Computer Engineering, Shiraz University, Shiraz 71886-97476, Fars, Iran e-mail:

2. Department of Energy Technology, Aalborg University, Aalborg 71886-97476, Denmark e-mail:

3. School of Electrical and Computer Engineering, Shiraz University, Shiraz 71348-51154, Fars, Iran e-mail:

Abstract

This paper studies a systematic linear matrix inequality (LMI) approach for controller design of nonlinear chaotic power systems. The presented method is based on a Takagi–Sugeno (TS) fuzzy model, a double-fuzzy-summation nonparallel distributed compensation (non-PDC) controller, and a double-fuzzy-summation nonquadratic Lyapunov function (NQLF). Since time derivatives of fuzzy membership functions (MFs) appear in the NQLF-based controller design conditions, local controller design criteria is considered, and sufficient conditions are formulated in terms of LMIs. Compared with the existing works in hand, the proposed LMI conditions provide less conservative results due to the special structure of the NQLF and the non-PDC controller in which two fuzzy summations are employed. To evaluate the effectiveness of the presented approach, two practical benchmark power systems, which exhibit chaotic behavior, are considered. Simulation results and hardware-in-the-loop illustrate the advantages of the proposed method compared with the recently published works.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

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