Sequential synthesis of structured singular value based decentralized controllers in power systems

This paper presents a systematic procedure for the design of decentralized controllers for multimachine power systems. The robust performance in terms of the structured singular value (SSV or /spl mu/) is used as the measure of control performance. A wide range of operating conditions were used for testing. Simulation results have shown that the resulting /spl mu/- controllers would effectively enhance the damping torques, providing better robust stability and/or performance characteristics both in the frequency and time-domain compared to conventionally designed power system stabilizers (PSSs).

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