2026-05-13T12:29:17Zhttps://ebiltegia.mondragon.edu/oai/requestoai:ebiltegia.mondragon.edu:20.500.11984/10942024-03-04T13:54:34Zcom_20.500.11984_473col_20.500.11984_478
eBiltegia
author
Garramiola, Fernando
author
del-Olmo, Jon
author
Poza, Javier
author
Madina, Patxi
author
Almandoz, Gaizka
2018-07-26T11:45:08Z
2018-07-26T11:45:08Z
2018
1424-8220
https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=147996
https://hdl.handle.net/20.500.11984/1094
Due to the importance of sensors in control strategy and safety, early detection of faults in sensors has become a key point to improve the availability of railway traction drives. The presented sensor fault reconstruction is based on sliding mode observers and equivalent injection signals, and it allows detecting defective sensors and isolating faults. Moreover, the severity of faults is provided. The proposed on-board fault reconstruction has been validated in a hardware-in-the-loop platform, composed of a real-time simulator and a commercial traction control unit for a tram. Low computational resources, robustness to measurement noise, and easiness to tune are the main requirements for industrial acceptance. As railway applications are not safety-critical systems, compared to aerospace applications, a fault evaluation procedure is proposed, since there is enough time to perform diagnostic tasks. This procedure analyses the fault reconstruction in the steady state, delaying the decision-making in some seconds, but minimising false detections.
eng
© 2018 by the authors. Licensee MDPI, Basel, Switzerland
sensor fault diagnosis
fault detection and isolation
fault injection
railway traction drive
sliding mode observer
DC-Link Voltage and Catenary Current Sensors Fault Reconstruction for Railway Traction Drives
http://purl.org/coar/resource_type/c_6501
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URL
http://ebiltegia.mondragon.edu/xmlui/bitstream/20.500.11984/1094/1/sensors-18-01998-v4.pdf
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sensors-18-01998-v4.pdf
URL
http://ebiltegia.mondragon.edu/xmlui/bitstream/20.500.11984/1094/8/sensors-18-01998-v4.pdf.txt
File
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sensors-18-01998-v4.pdf.txt