Robust phase-domain transmission line representation based on time-domain fitting

This work presents a methodology for deriving a phase-domain transmission line representation based on time-domain fitting. A polynomial matrix in the discrete-time domain describes the resulting model. The robustness of the representation, its stability and passivity, is attained by imbedding a set...

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Bibliographic Details
Published in:Electric power systems research 2006-05, Vol.76 (8), p.608-615
Main Authors: Nobre, Diana M., Boaventura, Wallace do C., Neves, Washington L.A.
Format: Article
Language:English
Subjects:
Applied sciences
Constrained least squares
Electrical engineering. Electrical power engineering
Electrical power engineering
Electromagnetic transients
Exact sciences and technology
Phase-domain
Power networks and lines
Theory. Simulation
Time-domain fitting
Transmission line
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Summary:This work presents a methodology for deriving a phase-domain transmission line representation based on time-domain fitting. A polynomial matrix in the discrete-time domain describes the resulting model. The robustness of the representation, its stability and passivity, is attained by imbedding a set of constraints in the solution of the fitting equations, which are solved using quadratic programming. Results demonstrating from transient simulations the features of the derived representation are presented for the case of an asymmetric, untransposed two-phase transmission line.
ISSN:0378-7796
1873-2046
DOI:10.1016/j.epsr.2005.12.006