Automatic Generation Control Using Singular Perturbation Approach

Abstract

ABSTRACT The reduction of control effort required in the automatic generation control of an interconnected power system is sought with the help of a singular perturbation approach. This is achieved by decomposing the system into slow and fast subsystems and designing controllers separately for each of the subsystems. These controllers are combined to yield a composite controller whose performance is found to depend on the selection of output matrices corresponding to slow and fast subsystems. As a consequence of this dependence, the performances of slow and composite systems match closely with that of an optimal system for a particular choice of output matrix. In the event generation rate constrains being imposed on the system, a dual code control strategy is proposed.