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A nonlinear voltage controller using T-S fuzzy model for multimachine power systems

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4 Author(s)
Abbadi, A. ; Electr. & Comput. Eng. Dept., Univ. of Medea, Medea, Algeria ; Boukhetala, D. ; Nezli, L. ; Kouzou, A.

In this paper we propose a decentralized nonlinear controller that has the ability to enhance the transient stability and achieve voltage regulation simultaneously for multimachine power systems. This paper extends the existing work on the construction of TS fuzzy model using linearly independent functions from nonlinear systems. This approach is based on Takagi-Sugeno (T-S) fuzzy controller via parallel distributed compensation (PDC) method. The stability analysis and control design problems can be reduced to linear matrix inequality (LMI) problems. Based on only local measurements, the designed fuzzy state feedback controller guarantees stability and satisfies desired transient responses. The proposed controller is applied to two-generator infinite bus power system. Simulation results illustrate the performance of the developed approach regardless of the system operating conditions.

Published in:

Systems, Signals and Devices (SSD), 2012 9th International Multi-Conference on

Date of Conference:

20-23 March 2012