Title | Direct phase-domain modelling of frequency-dependent overhead transmission lines |
Publication Type | Journal Article |
Year of Publication | 1997 |
Authors | Nguyen, H. V., H. W. Dommel, and J. R. Marti |
Journal | Power Delivery, IEEE Transactions on |
Volume | 12 |
Pagination | 1335 -1342 |
Date Published | jul. |
ISSN | 0885-8977 |
Keywords | direct phase-domain modelling, electromagnetic transients programs, EMTP, frequency-dependent overhead transmission lines, frequency-domain program, line functions synthesis, power overhead lines, power system analysis computing, power system transients, power transmission lines, recursive convolutions, steady-state conditions, time-domain analysis, time-domain models, transient conditions, transmission line theory, untransposed overhead transmission lines, wideband transmission line model |
Abstract | A new wideband transmission line model, based on synthesizing the line functions directly in the phase domain, is presented. It includes the complete frequency-dependent nature of untransposed overhead transmission lines by means of recursive convolutions over a wide frequency range. The model belongs to the class of time-domain models and is designed to be implemented in general electromagnetic transients programs such as the EMTP. Because the synthesis of the frequency-dependent modal transformation matrix is avoided, the method requires fewer convolutions at each time step than full frequency-dependent modal-domain models. Simulations have been performed comparing the proposed model with existing line models, with field recordings, and with calculations from a frequency-domain program. The new model provides accurate answers in both steady-state and transient conditions |
URL | http://dx.doi.org/10.1109/61.637012 |
DOI | 10.1109/61.637012 |