Using Universal Line Model (ULM) for simulating electromagnetic transients in three-phase transmission lines
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Data
2014-03-01
Autores
De Araújo, A. R J [UNESP]
Da Silva, R. C.
Kurokawa, S. [UNESP]
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Resumo
The second-order differential equations that describe the polyphase transmission line are difficult to solve due to the mutual coupling among them and the fact that the parameters are distributed along their length. A method for the analysis of polyphase systems is the technique that decouples their phases. Thus, a system that has n phases coupled can be represented by n decoupled single-phase systems which are mathematically identical to the original system. Once obtained the n-phase circuit, it's possible to calculate the voltages and currents at any point on the line using computational methods. The Universal Line Model (ULM) transforms the differential equations in the time domain to algebraic equations in the frequency domain, solve them and obtain the solution in the frequency domain using the inverse Laplace transform. This work will analyze the method of modal decomposition in a three-phase transmission line for the evaluation of voltages and currents of the line during the energizing process. © 2003-2012 IEEE.
Descrição
Palavras-chave
distributed parameters, Electromagnetic Transients, modal decomposition, transmission lines
Como citar
IEEE Latin America Transactions, v. 12, n. 2, p. 190-196, 2014.