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New SVPWM used post a two-phase failure in FOC five-phase PMSM drives

Saleh, Kamel; Sumner, M.


Kamel Saleh

Professor of Electrical Energy Systems


One of the pronounced features of the multi-phase machines compared to the conventional three-phases machine is their high-fault capability. This merit is quite important as it contributes to minimising the number of interruptions in industrial operations. This paper introduces two new Space Vector Pulse Width Modulation Techniques (SVPWM) to be used with the Field Oriented Control (FOC) strategy under two phases failure of the five-phase motor drives. The first SVPWM technique can be used if the failure happens to the adjacent phases while the second one is used in the cases that the failure happens to non-adjacent phases. The proposed modulation techniques consider the modifications of the remaining healthy stator currents of the five-phase motor under the failure of the two adjacent phases and non-adjacent phases to maintain the torque producing Magneto Motive Force (MMF) and hence maintain the speed. This will enhance the reliability of the whole drive system. Simulation results illustrate the capability of proposed new SVPWM techniques to maintain the torque ripple less than 3.6% and 3.4% post the failure in adjacent phase and non-adjacent phases respectively.


Saleh, K., & Sumner, M. (2023). New SVPWM used post a two-phase failure in FOC five-phase PMSM drives. International Journal of Electronics, 110(2), 312-340.

Journal Article Type Article
Acceptance Date Dec 4, 2021
Online Publication Date Jan 8, 2022
Publication Date 2023
Deposit Date Aug 4, 2022
Publicly Available Date Jan 9, 2023
Journal International Journal of Electronics
Print ISSN 0020-7217
Electronic ISSN 1362-3060
Publisher Taylor and Francis
Peer Reviewed Peer Reviewed
Volume 110
Issue 2
Pages 312-340
Keywords Electrical and Electronic Engineering
Public URL
Publisher URL


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