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Fuzzy logic application to single machine power system stabilizer

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2 Author(s)

Power system stabilizers (PSS) must be capable of providing stabilization signals over a broad range of operating conditions and disturbance. Traditional PSS rely on robust linear design method in an attempt to cover a wider range of operating condition. Expert or rule-based controllers have also been proposed. Recently fuzzy logic as a novel robust control design method has shown promising results. The emphasis in fuzzy control design center is around uncertainties in the system parameters and operating conditions. In this paper a novel Fuzzy Logic Power System Stabilizer (FLPSS) design is proposed. A proposed FLPSS basically utilizes two signals; namely change in rotor angular speed and rate of change of angular speed. A proposed FLPSS provides a good damping over a wide operating range. The effectiveness of the proposed fuzzy stabilizer is demonstrated by a digital computer simulation in MATLAB 7.0/SIMULINK of a single machine and a resistive load power system.

Published in:

Engineering (NUiCONE), 2011 Nirma University International Conference on

Date of Conference:

8-10 Dec. 2011