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Synchrony, aggregation, and multi-area eigenanlysis

G.N. Ramaswamy, G.C. Verghese, L. Rouco, C. Vialas, C.L. deMarco

This paper explores synchrony, a generalization of the concept of slow-coherency, and outlines how it can form the basis for efficient construction of dynamic equivalents by aggregation. The paper describes a novel approach for selecting the inter-area modes that are to be represented by the aggregate model. A clustering algorithm for recognizing approximate synchrony is presented, and improvements over the standard slow-coherency recognition algorithm are noted. Using for illustration a 23-generator power system model with 325 state variables, the paper demonstrates the effectiveness of a synchrony-based approach to decomposing the eigenanalysis of the electromechanical modes, separating the computation of inter-area and intra-area modes in the style of multi-area selective modal analysis.

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IEEE Transactions on Power Systems. Volumen: PWRS-10 Numero: 4 Páginas: 1986-1993

Publicado en papel: Noviembre 1995.

G.N. Ramaswamy, G.C. Verghese, L. Rouco, C. Vialas, C.L. deMarco. Synchrony, aggregation, and multi-area eigenanlysis. IEEE Transactions on Power Systems. vol. PWRS-10, no. 4, pp. 1986-1993, Noviembre 1995.

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