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Fault-tolerant Control for 7-phase Non-sinusoidal Permanent Magnet Machines with One Opened Phase

Keitaro Yanagihara, Duc Tan Vu, Ngac Ky Nguyen, Jinlin Gong, Eric Semail, Tiago Jose dos Santos Moraes
2019 2019 International Symposium on Electrical and Electronics Engineering (ISEE)  
is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. This is an author-deposited version published in: https://sam.ensam.eu Handle ID Abstract-This paper presents new fault-tolerant control strategies for field-oriented control of 7-phase non-sinusoidal permanent magnet (PM) machines supplied by voltage source inverters (VSI). Single phase open-circuit fault is considered. The proposed strategies
more » ... roposed strategies aim at finding waveforms of current references in natural frame in the way that post-fault currents create the same rotational magnetomotive force (MMF) as in healthy mode. Therefore, in the faulty mode, average torque can be maintained if no current limits are set. The proposed strategies are validated and compared to a previous strategy by numerical results in terms of joule losses, maximum RMS and peak phase currents, maximum phase voltage as well as their controllability with PI controllers.
doi:10.1109/isee2.2019.8921126 fatcat:cnpdkq5c5fg2rhbkyi6dkqfbye