Paper Info
Title
Post-Fault Foc Transformation Matrix For Unequal Amplitude Currents During Dual Open-Phase Fault
Abstract
Many critical five-phase PMSM drive systems require operation after a dual open-phase fault has occurred. Previously documented techniques suggest that injecting unequal amplitude currents into the non-faulted phases can minimize the torque ripple generated by this type of fault. However, the only control method which can control these currents is a phase current hysteresis controller, which generates larger magnitude harmonic currents and provides less control of the transient response when compared to field-oriented control (FOC). Therefore, this paper proposes a novel method for developing a post-fault FOC transformation matrix which can produce constant transformed current references for a given set of three unequal amplitude phase currents. This transformation matrix is then implemented in an FOC architecture with two proportional-integral current controllers and a phase back-EMF feed-forward block. An example post-fault transformation is outlined in this paper for a set of unequal amplitude post-fault currents which are calculated using a previously documented post-fault optimization algorithm. This transformation is then implemented in an experimental setup to provide experimental validation that the proposed post-fault FOC technique can accurately control unequal amplitude phase currents with minimal distortion.
Year
DOI
Venue
2018
10.1109/IECON.2018.8591672
IECON 2018 - 44TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
Keywords
Field
DocType
five-phase, field-oriented control, transformation matrix
Transient response,Bang–bang control,Control theory,Harmonic,Harmonic analysis,Engineering,Transformation matrix,Distortion,Amplitude,Torque ripple
Conference
ISSN
Citations 
PageRank 
1553-572X
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Matthew Priestley111.71
Mohammad Farshadnia253.16
Fletcher, J.E.31612.82