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An Active FTC Strategy Using Generalized Proportional Integral Observers Applied to Five-Phase PMSG based Tidal Current Energy Conversion Systems

Author

Listed:
  • Zhuo Liu

    (IREENA Laboratory, University of Nantes, 37 Boulevard de l’Université BP 406, 44602 Saint-Nazaire, France
    Department of Electrical Automation, Shanghai Maritime University, Shanghai 201306, China)

  • Azeddine Houari

    (IREENA Laboratory, University of Nantes, 37 Boulevard de l’Université BP 406, 44602 Saint-Nazaire, France)

  • Mohamed Machmoum

    (IREENA Laboratory, University of Nantes, 37 Boulevard de l’Université BP 406, 44602 Saint-Nazaire, France)

  • Mohamed-Fouad Benkhoris

    (IREENA Laboratory, University of Nantes, 37 Boulevard de l’Université BP 406, 44602 Saint-Nazaire, France)

  • Tianhao Tang

    (Department of Electrical Automation, Shanghai Maritime University, Shanghai 201306, China)

Abstract

In recent years, multi-phase permanent magnet synchronous generators (PMSGs) have become attractive in the field of tidal current energy conversion systems (TCECS) due to their high-power density, reliability, and availability. However, external disturbances and malfunctions in power conversion chains will bring challenges to achieving stable and continuous tidal current energy harnessing. Using generalized proportional integral observers, an active fault-tolerant control (AFTC) strategy is therefore proposed for a five-phase PMSG based TCECS that is subjected to an open switch fault (OSF) in the generator side converter. This proposed AFTC strategy is applied into q -axis current control loops, which contain fault detection and compensation. The fault compensator will be smoothly activated using a sigmoid function once the OSF is detected. Finally, a small-scale power experimental platform emulating the TCECS is established in order to verify the feasibility and efficiency of the proposed FTC strategy. Experiment results show that this AFTC strategy can detect faults rapidly and effectively attenuate torque ripples in the post-fault operation mode.

Suggested Citation

  • Zhuo Liu & Azeddine Houari & Mohamed Machmoum & Mohamed-Fouad Benkhoris & Tianhao Tang, 2020. "An Active FTC Strategy Using Generalized Proportional Integral Observers Applied to Five-Phase PMSG based Tidal Current Energy Conversion Systems," Energies, MDPI, vol. 13(24), pages 1-22, December.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6645-:d:463138
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    References listed on IDEAS

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    1. Chao Wu & Jun Yang & Qi Li, 2020. "GPIO-Based Nonlinear Predictive Control for Flux-Weakening Current Control of the IPMSM Servo System," Energies, MDPI, vol. 13(7), pages 1-21, April.
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    Cited by:

    1. Mahmoud A. Mossa & Hamdi Echeikh & Ahmed A. Zaki Diab & Hassan Haes Alhelou & Pierluigi Siano, 2021. "Comparative Study of Hysteresis Controller, Resonant Controller and Direct Torque Control of Five-Phase IM under Open-Phase Fault Operation," Energies, MDPI, vol. 14(5), pages 1-23, February.

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