Abstract

This part of a three-part paper deals first with the performance objectives of power system stabilizers in terms of the type of oscillations for which they are intended to provide damping, the operating conditions for which the requirement for stabilization is greatest, the need to accommodate multiple modes of oscillation, and the significance of interplant modes of oscillation. It next treats stabilizer tuning. General tuning guidelines are developed as well as variations required for different input signals. The operating conditions under which each type of stabilizer should be tuned are identified. The relationship between phase compensation tuning and root locus analysis is presented. Finally, the relative performance characteristics of the three types of stabilizers are examined for both small perturbations and large disturbances.

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