In this paper the notion of structural coherency is introduced as a generalized definition of coherency related to the order reduction that may occur in an external power system when forming its transfer function matrix. On the basis of a linearized model of the external system in polynomial matrix form, necessary and sufficient conditions, involving network and generator parameters, are given to ascertain the presence of structurally coherent generators. A practical coherency index is defined which allows one to evaluate the degree of structural coherency among the generating units. By using the proposed index, nearly-coherent generator groups can be easily identified and accurate dynamic equivalents are provided.

Structural Coherency in Interconnected Power Systems / Brucoli, Michele; Torelli, Francesco; Trovato, Michele. - In: LARGE SCALE SYSTEMS. - ISSN 0167-420X. - STAMPA. - 5:3(1983), pp. 169-188.

Structural Coherency in Interconnected Power Systems

Brucoli, Michele;Torelli, Francesco;Trovato, Michele
1983-01-01

Abstract

In this paper the notion of structural coherency is introduced as a generalized definition of coherency related to the order reduction that may occur in an external power system when forming its transfer function matrix. On the basis of a linearized model of the external system in polynomial matrix form, necessary and sufficient conditions, involving network and generator parameters, are given to ascertain the presence of structurally coherent generators. A practical coherency index is defined which allows one to evaluate the degree of structural coherency among the generating units. By using the proposed index, nearly-coherent generator groups can be easily identified and accurate dynamic equivalents are provided.
1983
Structural Coherency in Interconnected Power Systems / Brucoli, Michele; Torelli, Francesco; Trovato, Michele. - In: LARGE SCALE SYSTEMS. - ISSN 0167-420X. - STAMPA. - 5:3(1983), pp. 169-188.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/11644
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