2026-05-13T12:33:00Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/10942024-03-04T13:54:34Zcom_20.500.11984_473col_20.500.11984_478

00925njm 22002777a 4500 dc Garramiola, Fernando author del-Olmo, Jon author Poza, Javier author Madina, Patxi author Almandoz, Gaizka author 2018 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. 1424-8220 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=147996 https://hdl.handle.net/20.500.11984/1094 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