Volume 19, Issue 4 (JIAEEE Vol.19 No.4 2022)                   Journal of Iranian Association of Electrical and Electronics Engineers 2022, 19(4): 93-104 | Back to browse issues page

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Bolbolnia R, Abbaszadeh K. Fault Diagnosis and Fault-Tolerant SVPWM Technique of Six-phase Converter under Open-Switch Fault. Journal of Iranian Association of Electrical and Electronics Engineers 2022; 19 (4) :93-104
URL: http://jiaeee.com/article-1-1369-en.html
Fault Diagnosis and Fault-Tolerant SVPWM Technique of Six-phase Converter under Open-Switch Fault
Rouhollah Bolbolnia , Karim Abbaszadeh *
Department of Electrical and Computer Engineering, Faculty of Electrical Engineering, K. N. Toosi University of Technology
Abstract:   (1079 Views)
In this paper, a new open-switch fault diagnosis method is proposed for the six-phase AC-DC converter based on the difference between the phase current and the corresponding reference using an adaptive threshold. The open-switch faults are detected without any additional equipment and complicated calculations, since the proposed fault detection method is integrated with the controller required signals. The proposed fault-tolerant technique reduces the value of overcurrent and total harmonic distortion (THD) on the healthy and faulty phases, by considering the redundancy mode of space vectors in space vector pulse width modulation (SVPWM) and changing the switching signals in fault regions. This technique is performed without adding any legs, switches or triode for alternating currents (TRIAC) to the circuit. Finally, the proposed fault-tolerant technique is evaluated by MATLAB simulation and the results show its effectiveness.
Keywords: Fault diagnosis, fault-tolerant SVPWM technique, open-switch fault, six-phase converter.
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Type of Article: Research | Subject: Power
Received: 2021/08/23 | Accepted: 2021/12/11 | Published: 2022/10/28
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