2026-04-102026-04-102026-03-01Venghi, L. E., Aguilera, F., de la Barrera, P. ., & De Angelo, C. (2026). Single and Multiple Open-Switch Fault Diagnosis in Electric Drives via Zero-Current Interval Analysis. IEEE Latin America Transactions, 24(3), 216–226. REcuperado de RID UNRaf https://hdl.handle.net/20.500.14399/551RID2026369https://hdl.handle.net/20.500.14399/551Fil: Venghi, Luis Esteban. Universidad Nacional de Rafaela. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro de Investigación y Transferencia (CIT Rafaela); Argentina.Fil: Aguilera, Facundo. Grupo de Electrónica Aplicada, IITEMA; ArgentinaFil: De la Barrera, Pablo Martín. Grupo de Electrónica Aplicada (GEA); ArgentinaFil: De Angelo, Cristian. Universidad Nacional de Rio Cuarto; ArgentinaIn this work, a new and simple method for open-switch fault diagnosis in electric drives based on zero-current detection is proposed. The approach requires only two phase current sensors, with the measured currents being normalized and separated into positive and negative half-cycles. A variable-sample-time moving average is introduced for post-processing the signals. Zero-current interval detection is employed to diagnose both single and multiple open-switch faults. The proposed method was experimentally validated under various fault conditions, including single-switch, crossed-switch, full-leg, and two upper- or lower-switch open-circuit faults. Experimental results demonstrate that, despite its simplicity and ease of implementation, the method reliably detects all single and double open-switch fault scenarios in less than one electrical cycle, across different motor operating conditions.info:eu-repo/semantics/openAccessAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/detection and isolationelectric drivesfault diagnosisinverteropen-switch faultsinfo:eu-repo/semantics/article