Postfault operation of a nine-phase six-terminal induction machine under single open-line fault

Ahmed M. Massoud; Shehab Ahmed; Ayman Samy Abdel-Khalik; Mostafa S. Hamad

doi:10.1109/TIE.2017.2733471

Postfault operation of a nine-phase six-terminal induction machine under single open-line fault

Ahmed M. Massoud, Shehab Ahmed, Ayman Samy Abdel-Khalik^*, Mostafa S. Hamad

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

This paper studies the postfault control of a nine-phase six-terminal induction machine (IM) during single open-line fault, which was recently proposed for high-power medium-voltage applications as a promising alternative to conventional six-phase IMs. The required optimal reference currents to provide prefault loading conditions under one-line open are derived using the two most common optimization criteria employed in multiphase drives, namely, maximum torque and minimum loss modes. A postfault controller, based on conventional decoupling Clarke's transformation, is then used to ensure the same controller structure under all conditions. Consequently, the machine characteristic curves, achievable torque, and stator copper losses under these different modes are compared. A comparison with a conventional asymmetrical six-phase winding is also given. A 1.5-Hp prototype IM is used for experimental verification.

Original language	English (US)
Article number	2733471
Pages (from-to)	1084-1096
Number of pages	13
Journal	IEEE Transactions on Industrial Electronics
Volume	65
Issue number	2
DOIs	https://doi.org/10.1109/TIE.2017.2733471
State	Published - 2017

Bibliographical note

Funding Information:
Manuscript received March 20, 2017; revised May 25, 2017 and June 12, 2017; accepted June 22, 2017. Date of publication July 28, 2017; date of current version December 8, 2017. This work was supported by the Qatar National Research Fund (a member of the Qatar Foundation) under NPRP Grant 6-213-2-090. (Corresponding author: Ayman Samy Abdel-Khalik.) A. S. Abdel-Khalik is with the Electrical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt (e-mail: [email protected]).

Publisher Copyright:
© 2017 IEEE.

Keywords

Asymmetrical winding
Fault-tolerant operation
High-power induction machine (IM)
Nine-phase machine
Single layer winding
Six-phase machine

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/TIE.2017.2733471

Cite this

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title = "Postfault operation of a nine-phase six-terminal induction machine under single open-line fault",

abstract = "This paper studies the postfault control of a nine-phase six-terminal induction machine (IM) during single open-line fault, which was recently proposed for high-power medium-voltage applications as a promising alternative to conventional six-phase IMs. The required optimal reference currents to provide prefault loading conditions under one-line open are derived using the two most common optimization criteria employed in multiphase drives, namely, maximum torque and minimum loss modes. A postfault controller, based on conventional decoupling Clarke's transformation, is then used to ensure the same controller structure under all conditions. Consequently, the machine characteristic curves, achievable torque, and stator copper losses under these different modes are compared. A comparison with a conventional asymmetrical six-phase winding is also given. A 1.5-Hp prototype IM is used for experimental verification.",

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note = "Funding Information: Manuscript received March 20, 2017; revised May 25, 2017 and June 12, 2017; accepted June 22, 2017. Date of publication July 28, 2017; date of current version December 8, 2017. This work was supported by the Qatar National Research Fund (a member of the Qatar Foundation) under NPRP Grant 6-213-2-090. (Corresponding author: Ayman Samy Abdel-Khalik.) A. S. Abdel-Khalik is with the Electrical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt (e-mail: [email protected]). Publisher Copyright: {\textcopyright} 2017 IEEE.",

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Postfault operation of a nine-phase six-terminal induction machine under single open-line fault

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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