A Harmonic Transfer Function Model for a Diode Converter Train

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Abstract

A method for analysis of electric networks with nonlinear and switching components is presented. The method is based on linearization around the nominal AC voltage, which results in linear time periodic (LTP) models. For nonlinear and switching components, there is coupling between different frequencies, which may cause stability and resonance problems. The models capture this coupling and can thus be used for small signal stability and robustness analysis. A short introduction to transfer functions for LTP systems is given. To illustrate the method, an LTP model for the Adtranz locomotive Re 4/4 is derived. The system consists of an AC-side with a transformer, and a DC-side with a DC motor and a smoothing choke. The AC-side and the DC-side are connected by a diode bridge rectifier. The model clearly shows the coupling between frequencies

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Originalspråkengelska
Titel på värdpublikationIEEE Power Engineering Society Winter Meeting, 2000.
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor957-962
Volym2
ISBN (tryckt)0-7803-5935-6
StatusPublished - 2000
PublikationskategoriForskning
Peer review utfördNej

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