Twofold Fail-Work Remedy for Reconfigurable Driver and Windings of Four-Phase Permanent Magnet Fault-Tolerant Motor System

In this paper, a novel multiphase reconfigurable and fault-tolerant drive converter topology is proposed for driver with fail-work capability, and fault-tolerant strategies are proposed for open-circuit and short-circuit faults in the single-phase windings, aiming to improve the motor drive system&#...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2019-08, Vol.34 (8), p.7763-7774
Main Authors: Si, Binqiang, Fu, Qiang, Wang, Tao, Gao, Congzhe, Zhu, Jihong
Format: Article
Language:English
Subjects:
Circuit reliability
Coils (windings)
Computer simulation
Converters
Drive topology
Electronic devices
Fault tolerance
Fault tolerant systems
Faults
Inverters
Model testing
open circuit
Permanent magnets
Power supplies
Reconfiguration
short circuit
Short circuits
Switches
Topology
twofold fail work
Windings
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Summary:In this paper, a novel multiphase reconfigurable and fault-tolerant drive converter topology is proposed for driver with fail-work capability, and fault-tolerant strategies are proposed for open-circuit and short-circuit faults in the single-phase windings, aiming to improve the motor drive system's fail-work ability in the high reliability applications. The drive converter topology can isolate open-circuit and short-circuit faults in power supplies, power devices, or switches. Then, it can reconfigure the drive circuit topology from independent H-bridge to star type by reconfigurable switches and power devices, according to the fault-type and the fault-tolerant truth tables. After reconfiguration, remedial operation will be utilized for open- and short-circuit faults of windings, so that the motor system has twofold fail-work capabilities in driver and windings. Finally, based on a series of experiments on a transit co-simulation model and test bench, the effectiveness and validity of fault-tolerant capability and the strategies are verified, and has twofold fail-work remedy.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2018.2878013