Power system stabilizer design using μ synthesis

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Abstract
Linear control design system stabilizers (PSSs) require the nominal power system model to be formulated as a linear time invariant system. Power system operating conditions vary with system configurations and loading conditions and coefficients in nominal system model change in a complex manner. A /spl mu/ synthesis based control design methodology is presented in this paper to deal with the parametric uncertainties in power system modeling. The design process involves a nominal power system model with uncertainty descriptions which represent the parameter perturbation of synchronous generator around its nominal operating point The proposed excitation controller enables the power system to be stable over a wide range of power system operating conditions. Simulation results both in the frequency domain and in time domain are presented.<>

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