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

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4 Author(s)
Cheon Don Son ; Korea Electrotechnol. Res. Inst., Changwon ; Chang Hee Cho ; Jong Bo Ahn ; Fun Tae Jeung

Major objectives in power system control design are to prevent a losing synchronism after a large sudden fault and to achieve good pre-fault regulation of the generator terminal voltage. Conventional linear controllers for a power system were designed by using a linearization technique at the nominal point and they did not give a good stability after a large disturbance or changing operating points. To overcome this problem, a lot of researches regarding nonlinear control schemes to improve the transient stability and voltage regulation were reported. In this paper, a novel approach is proposed to design a nonlinear voltage controller for a power system. It is designed by using Takagi-Sugeno (T-S) Fuzzy model of the power system based on parallel distributed compensation (PDC) and linear matrix inequalities (LMIs).

Published in:

TENCON 2007 - 2007 IEEE Region 10 Conference

Date of Conference:

Oct. 30 2007-Nov. 2 2007