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Diagnosis and Fault-Tolerant Control of Six-Phase Wind Turbine under Multiple Open-Switch Faults

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  • Rouhollah Bolbolnia
  • Karim Abbaszadeh
  • Mojtaba Nasiri

Abstract

A new open-switch fault diagnosis method is proposed in this paper for the six-phase AC-DC converter based on the difference between the phase current and the corresponding reference using an adaptive threshold. The single and multiple open-switch faults are detected without any additional equipment and complicated calculations since the proposed fault detection method is integrated with the hysteresis controller. The proposed fault-tolerant technique reduces the value of overcurrent and total harmonic distortion on the side phases of the faulty one, by changing the switching signal of one switch in its opposite phase in some regions. This technique is performed without adding any legs, switches, or triode for alternating currents to the circuit. Finally, the proposed fault-tolerant technique is evaluated by MATLAB simulation and the results show its effectiveness.

Suggested Citation

  • Rouhollah Bolbolnia & Karim Abbaszadeh & Mojtaba Nasiri, 2021. "Diagnosis and Fault-Tolerant Control of Six-Phase Wind Turbine under Multiple Open-Switch Faults," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-16, October.
    • Handle: RePEc:hin:jnlmpe:9999918
    DOI: 10.1155/2021/9999918
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