Synchrony, aggregation, and multi-area eigenanalysis

Autor: C.L. DeMarco, Luis Rouco, George C. Verghese, C. Vialas, G.N. Ramaswamy
Rok vydání: 1995
Předmět:
Zdroj: IEEE Transactions on Power Systems. 10:1986-1993
ISSN: 1558-0679
0885-8950
DOI: 10.1109/59.476067
Popis: 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.
Databáze: OpenAIRE