Modeling and Analysis of Low-Frequency Oscillation in PETT-based Train-network System

Yi Hong, Zhikang Shuai, Xiongfei Wang, Jingyan Xie

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Abstrakt

The power electronic traction transformer (PETT) is going to replace the power-frequency transformer of locomotive in the future considering its small volume and light weight. However, the negative damping characteristic of PETT may cause stability problems to train-network system like conventional locomotive. To study this problem, the detailed mathematical model of PETT-based train-network system is firstly established in this paper. Based on the impedance model, the system stability is analyzed using generalized Nyquist stability criterion. Moreover, the influences, including network impedance, parameters of cascaded H-bridge (CHB) and LLC converter, are studied. Lastly, the simulation based on MATLAB/Simulink is conducted to further verify the accuracy and validity of the model, which can give guidance for system parameters optimization.
OriginalsprogEngelsk
TitelAPEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
Antal sider7
ForlagIEEE
Publikationsdatomar. 2020
Sider3513-3519
Artikelnummer9124257
ISBN (Elektronisk)978-1-7281-4829-8
DOI
StatusUdgivet - mar. 2020
Begivenhed35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, USA
Varighed: 15 mar. 202019 mar. 2020

Konference

Konference35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
LandUSA
ByNew Orleans
Periode15/03/202019/03/2020
SponsorIEEE Power Electronics Society (PELS), Industry Applications Society (IAS), Power Sources Manufacturers Association (PSMA)
NavnI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

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