Non-transposed three-phase line analyses with a single real transformation matrix


Autoria(s): Prado, A. J.; Pissolato Filho, J.; Kurokawa, S.; Bovolato, L. F.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

31/10/2005

Resumo

In transmission line transient analyses, a single real transformation matrix can obtain exact modes when the analyzed line is transposed. For non-transposed lines, the results are not exact. In this paper, non-symmetrical and non transposed three-phase line samples are analyzed with a single real transformation matrix application (Clarke's matrix). Some interesting characteristics of this matrix application are: single, real, frequency independent, line parameter independent, identical for voltage and current determination. With Clarke's matrix use, mathematical simplifications are obtained and the developed model can be applied directly in programs based on time domain. This model works without convolution procedures to deal with phase-mode transformation. In EMTP programs, Clarke's matrix can be represented by ideal transformers and the frequency dependent line parameters can be represented by modified-circuits. With these representations, the electrical values at any line point can be accessed for phase domain or mode domain using the Clarke matrix or its inverse matrix. For symmetrical and non-transposed lines, the model originates quite small errors. In addition, the application of the proposed model to the non-symmetrical and non-transposed three phase transmission lines is investigated. ©2005 IEEE.

Formato

119-125

Identificador

http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=01489451

2005 IEEE Power Engineering Society General Meeting, v. 1, p. 119-125.

http://hdl.handle.net/11449/68460

2-s2.0-27144470369

Idioma(s)

eng

Relação

2005 IEEE Power Engineering Society General Meeting

Direitos

closedAccess

Palavras-Chave #Clarke matrix #Eigenvalue #Eigenvector #Frequency-time transformation #Mode domain #Transformation matrix #Transmission lines #Real transformation #Three-phase line analysis #Eigenvalues and eigenfunctions #Errors #Matrix algebra #Networks (circuits) #Parameter estimation #Time domain analysis #Transients #Power transmission
Tipo

info:eu-repo/semantics/conferencePaper