IEEE Transactions on Power Systems
The authors present the optimal transient stability control problem in a hierarchical structure for multimachine power systems. The two-level structure retains the local closed-loop controls, thereby easing its implementation on existing systems. The formulation accounts for nonlinearities and interconnections, and the optimization of the system transient performance is obtained with less computational effort. Since the computations are distributed among the many local feedback subsystems, the storage and solution times are considerably less than those required by a single overall centralized controller. This advantage becomes much stronger as the system size increases. For illustration purposes, this technique was applied successfully to a four-machine system
Rubbai, A and Villaseca, F. Eugenio, "Transient Stability Hierarchical Control in Multimachine Power Systems" (1989). Electrical Engineering & Computer Science Faculty Publications. 86.
Rubaai, A., & Villaseca, F. E. (November 01, 1989). Transient stability hierarchical control in multimachine power systems. IEEE Transactions on Power Systems, 4, 4, 1438-1444.
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