Abstract
The paper describes the problem of control of multi-machine power systems under parametric uncertainties, perturbed mechanical input power and unknown variable communication time-delay. The algorithm is proposed for the case when only relative speeds of each electrical generator are measured. The algorithm synchronizes the multi-machine power system with the required accuracy in the normal mode and under symmetrical 3-phase short circuit faults which occur on transmission lines. Efficiency of the scheme is illustrated by modeling of the three machine power systems.
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