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Post -Fault Compensation Control Strategy for Multi-Three-Phase PMSM under Open-Circuit and Short-Circuit Condition

Rahman, Azlia A.; Galassini, A.; Degano, M.; Abbas, H.; Bozhko, S.


Azlia A. Rahman

A. Galassini

Professor of Advanced Electrical Machines

H. Abbas

Professor of Aircraft Electric Power Systems


This paper presents two post-fault compensation strategies for the distributed current control of a nine-phase Permanent-Magnet Synchronous Machine (PMSM). The dynamic performance in faulty condition is guaranteed by keeping the current loop bandwidths constant. The two faults under investigation are Open-Circuit (OC) and Short-Circuit (SC) of one set of the three-phase windings. The decoupled mathematical model of the machine in post-fault conditions are derived prior to the control strategies are designed. The Vector Space Decomposition (VSD) is used and the design for the controllers is revised. While short-circuiting one set of three-phase windings, in order to eliminate different electro-magnetic interactions, different lag compensators for different healthy modules are introduced. The proposed post-fault control strategies are compared against the step response in nominal condition and further validated by means of Matlab/Simulink ® simulations, where three Two-Level Three-Phase Voltage Source Inverters (2L-3P-VSIs) are used to supply the machine.


Rahman, A. A., Galassini, A., Degano, M., Abbas, H., & Bozhko, S. (2019). Post -Fault Compensation Control Strategy for Multi-Three-Phase PMSM under Open-Circuit and Short-Circuit Condition.

Conference Name 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)
Start Date Apr 22, 2019
End Date Apr 23, 2019
Acceptance Date Apr 5, 2019
Online Publication Date Oct 31, 2019
Publication Date Apr 22, 2019
Deposit Date Mar 3, 2020
Publicly Available Date Mar 4, 2020
Publisher Institute of Electrical and Electronics Engineers
ISBN 9781538681077
Public URL
Publisher URL
Additional Information © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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