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Modeling the traction system in PSpice for electromagnetic noise analysis
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
Bombardier transportation, Västerås, Sweden.
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-1607-2493
2011 (English)Conference paper, Published paper (Other academic)
Place, publisher, year, edition, pages
2011.
Keyword [en]
multiconductor transmission line, traction system, PWM, electromagnetic noise
National Category
Telecommunications Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-31664OAI: oai:DiVA.org:kth-31664DiVA: diva2:405130
Conference
Electronic Environment
Funder
StandUp
Note

QC 20120316

Available from: 2011-03-21 Created: 2011-03-21 Last updated: 2016-06-22Bibliographically approved
In thesis
1. Electromagnetic noise generated in the electrified railway propulsion system
Open this publication in new window or tab >>Electromagnetic noise generated in the electrified railway propulsion system
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The electromagnetic compatibility (EMC) problem in the railway propulsion system is a significant safety issue of high concern. The problems can be caused by any part of the propulsion system as well as any combination of the sub systems. Simulation is a fast economical way to understand the system and to predict the EMC performance. In this thesis, the propulsion system is studied partly from the rectifier to the motor. To simulate the rectifier, a two level pulse width modulation (PWM) controlled rectifier is built in Simulink. Time domain line current as well as frequency domain spectra is studied. The spectrum changing according to time variation is obtained. In order to study the high derivative of switching pulse in the insulated gate bipolar transistor (IGBT), a simple circuit is proposed to investigate it. The high frequency noise spectrum is given and the variation of the spectrum due to the reverse recovery time of the ant-parallel diode is also demonstrated.

Transmission line theory is used to model the cable used to connect the inverter and motor. The method to extract the characteristic capacitance and inductance matrices of the cable system is presented. Decoupling these characteristic matrices is required for modeling the multiconductor transmission line (MTL) in PSpice. A simple way to decouple them is thus proposed here. Through the simulation studies, we analyze the oscillation and overvoltage in the cable. A fourth cable with optimized layout is also illustrated here to reduce the oscillation on the line. Furthermore, the relationship between the length of line and the noise frequency is studied.

Shielding is another way to reduce the electromagnetic (EM) coupling of power lines. The method to model shielded cables in PSpice is given in this thesis. Based on the model we have investigated the shielding effect and analyzed the impact of different grounding conditions on the shielding performance.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2011. 50 p.
Series
Trita-EE, ISSN 1653-5146 ; 2011:011
Keyword
Electromagnetic compatibility, railway, propulsion system, shielded cable, transmission line
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Telecommunications
Research subject
SRA - Transport
Identifiers
urn:nbn:se:kth:diva-31581 (URN)978-91-7415-873-1 (ISBN)
Presentation
2011-03-28, V3, KTH, Teknikringen 72, Stockholm, 10:00 (English)
Opponent
Supervisors
Funder
TrenOp, Transport Research Environment with Novel Perspectives
Note
QC 20110321Available from: 2011-03-21 Created: 2011-03-18 Last updated: 2011-03-21Bibliographically approved

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Thottappillil, Rajeev

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Citation style
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