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Start Over Author "Gerada, Chris" Journal ieee transactions on power electronics
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8. Post-Fault Operation of Bearingless Multisector SPM Machines by Space Vector Control

Author

David Gerada, Chris Gerada, Giacomo Sala, Giorgio Valente, Pericle Zanchetta, Sala, Giacomo, Valente, Giorgio, Gerada, David, Zanchetta, Pericle, and Gerada, Chris

Subjects
Stator, Computer science, 020208 electrical & electronic engineering, Electromagnetic suspension, 02 engineering and technology, Function (mathematics), Fault (power engineering), Force,Torque,Windings,Magnetic levitation,Rotors,Saturation magnetization,Inverters Bearingless machines,Open-circuit faults,Fault tolerant control,Force control,Machine vector control,Magnetic levitation,Multiphase machines,Permanent magnet machines, law.invention, Control theory, law, Electromagnetic coil, 0202 electrical engineering, electronic engineering, information engineering, Torque, Electrical and Electronic Engineering, Saturation (magnetic), Magnetic levitation
Abstract

In this article, a novel post fault control algorithm based on the space vector method is presented and applied to a bearingless multisector permanent magnet synchronous machine with a triple three-phase winding. First, the expressions of the current space vectors, as a function of the electromagnetic suspension force and motoring torque, are introduced. Then, the open-circuit fault is described and a new post-fault algorithm is introduced. The introduced post-fault algorithm, based on the minimization of the stator copper losses, is compared at simulation level with an existing one, where the above-mentioned loss minimization was not considered. The simulation results show a remarkable improvement in the performance when the novel post-fault algorithm is employed. Finally, the developed control algorithm is experimentally validated on a prototype of a bearingless multisector permanent magnet synchronous machine.

Published
2020

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