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Design of an interleaved PWM rectifier for AC locomotives and implementation of its laboratory prototype
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index.pdf
Date
2015
Author
Uğur, Mesut
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This research work is devoted to the design, and prototype implementation of a single-phase, unity power factor, Pulse Width Modulated (PWM) Rectifier for use in traction converters of AC locomotives. The PWM Active Rectifier is supplied from a front-end transformer, with two isolated secondary windings. The associated power stage is composed of two single-phase, H-bridge voltage-source converters, which are interleaved via a common DC link. Interleaved connection of converters is used to reduce the line current total demand distortion on the grid side of the traction transformer, to comply with the IEEE Std. 519-1992. Control techniques and PWM methods used in AC locomotive traction applications are analyzed, compared and digitally implemented on a DSP microcontroller. The design and optimization of this system is achieved on MATLAB/Simulink simulation environment. The performance of the implemented system is tested on a low power laboratory prototype composed of the developed PWM rectifier, and a four-quadrant, frequency-controlled induction motor drive and satisfactory results have been obtained.
Subject Keywords
Railroads
,
Locomotives
,
Railroads
,
Electric locomotives.
URI
http://etd.lib.metu.edu.tr/upload/12619181/index.pdf
https://hdl.handle.net/11511/24909
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Graduate School of Natural and Applied Sciences, Thesis
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M. Uğur, “Design of an interleaved PWM rectifier for AC locomotives and implementation of its laboratory prototype,” M.S. - Master of Science, Middle East Technical University, 2015.
