期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 66, 期 1, 页码 48-59出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2018.2829669
关键词
Electric vehicle (EV); fault-tolerant control; five phase; magnetomotive force (MMF); open circuit; permanent-magnet (PM) machine
资金
- National Key R&D Program of China [2017YFB0203603]
- National Natural Science Foundation of China [51607046, 51637003, 51777013, 51521003, 51325701]
- Self-Planned Task of State Key Laboratory of Robotics and System (HIT) [SKLRS201710A]
- Shanghai Aerospace Science and Technology Innovation Foundation [SAST2017-087]
- China Postdoctoral Science Foundation [2017M610204]
This paper investigates the open-circuit fault-tolerant current control for a five-phase fault-tolerant permanent-magnet (PM) machine used for electric vehicles. By relieving the common constraint of zero neutral point current in the existing fault-tolerant control strategies and reconfiguring the maximum round rotating magnetomotive force under different fault conditions, the new current sets, which enable the five-phase PM machine to output the maximum smooth torque, are obtained by the analytical method. Compared with the existing fault-tolerant control strategy, larger torque and lower torque ripple can be obtained with the proposed fault-tolerant control strategy, and the five-phase PM machine can safely operate with the loss of up to three phase windings. The proposed fault-tolerant control strategy is verified by both finite-element analysis and experimental results. The developed fault-tolerant current control strategy can be generalized into any multiphase PM machines.
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