SIMULAÇÃO DIGITAL NO TEMPO DE REDES ELÉTRICAS LINEARES EXCITADAS POR SENÓIDES NO ENTORNO DE UMA FREQÜÊNCIA / TIME DOMAIN DIGITAL SIMULATION OF LINEAR ELECTRICAL NETWORKS EXCITED BY SINUSOIDAL INPUT IN THE NEIGHBORHOOD OF A FREQUENCY

AUTOR(ES)
DATA DE PUBLICAÇÃO

1999

RESUMO

The simulation of linear systems with sinusoidal input has a very simple solution by transform methods. However, when the network is of large scale and the frequency of excitation is unknown, this fasorial analysis method is not satisfactory because of its complexity. Several processes of computer analysis have been developed recently addressing the problem of large-scale networks. However, when implemented to operate in time domain, these methods do not describe the former case (excitation in the neighborhood of a frequency) of a transitory general analysis. The proposed method allows the operation in time domain of large-scale networks, taking advantage of the narrow frequency band in which the electric network is working. Without loss of generality, the above method was implemented based on nodal analysis and multi-rate digital filtering techniques. The electrical network is transformed into a multiple- access digital filter, where signal decimation operations lead to a sensible reduction in the overall computational complexity. Some examples and comparisons with Dommel classical technique are presented, validating the new approach.

ASSUNTO(S)

simulacao real-time nets electric simulation redes eletricas tempo real

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