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Flexible Fault-Tolerant Topology for Switched Reluctance Motor Drives

Power Electronics, IEEE Transactions on, 2016, Vol.31, p.4654-4668

1986-2012 IEEE ;DOI: 10.1109/TPEL.2015.2477165

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  • Title:
    Flexible Fault-Tolerant Topology for Switched Reluctance Motor Drives
  • Author: Hu, Yihua ; Gan, Chun ; Cao, Wenping ; Zhang, Jiangfeng ; Li, Wuhua ; Finney, Stephen J
  • Subjects: Bridge circuits ; Circuit faults ; Fault diagnosis ; Fault tolerance ; Fault tolerant systems ; Reluctance motors ; switched reluctance motor (SRM) ; Switches ; Topology ; traction motor drive
  • Is Part Of: Power Electronics, IEEE Transactions on, 2016, Vol.31, p.4654-4668
  • Description: Switched reluctance motor (SRM) drives are one competitive technology for traction motor drives. This paper proposes a novel and flexible SRM fault-tolerant topology with fault diagnosis, fault tolerance, and advanced control functions. The converter is composed of a single-phase bridge and a relay network, based on the traditional asymmetrical half-bridge driving topology. When the SRM-driving system is subjected to fault conditions including open-circuit and short-circuit faults, the proposed converter starts its fault-diagnosis procedure to locate the fault. Based on the relay network, the faulty part can be bypassed by the single-phase bridge arm, while the single-phase bridge arm and the healthy part of the converter can form a fault-tolerant topology to sustain the driving operation. A fault-tolerant control strategy is developed to decrease the influence of the fault. Furthermore, the proposed fault-tolerant strategy can be applied to three-phase 12/8 SRM and four-phase 8/6 SRM. Simulation results in MATLAB/Simulink and experiments on a three-phase 12/8 SRM and a four-phase 8/6 SRM validate the effectiveness of the proposed strategy, which may have significant economic implications in traction drive systems.
  • Publisher: IEEE
  • Language: English
  • Identifier: DOI: 10.1109/TPEL.2015.2477165
  • Source: IEEE Xplore Open Access Journals
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