Short-Circuit Fault-Tolerant Control Without Constraint on the D-Axis Armature Magnetomotive Force for Five-Phase PMSM

In this article, we investigate the short-circuit (SC) fault-tolerant control (FTC) method for a five-phase permanent-magnet synchronous machine (PMSM) with surface-mounted permanent magnets. By relieving the constraint of zero d -axis armature magnetomotive force (MMF) and restraining the backward-...

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Bibliographic Details
Published inIEEE transactions on industrial electronics (1982) Vol. 69; no. 5; pp. 4472 - 4483
Main Authors Yin, Zuosheng, Sui, Yi, Zheng, Ping, Yang, Shijie, Zheng, Zaiping, Huang, Jiaxuan
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
<italic xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">D -axis magnetomotive force (MMF)
Fault tolerance
Fault tolerant systems
fault-tolerant control (FTC)
Finite element method
five-phase permanent-magnet synchronous machine (PMSM)
Harmonic analysis
Low speed
Permanent magnets
Power capacitors
Resistance
Rotation
Short circuits
short-circuit (SC)
Synchronous machines
Torque
torque performance
Windings
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Summary:In this article, we investigate the short-circuit (SC) fault-tolerant control (FTC) method for a five-phase permanent-magnet synchronous machine (PMSM) with surface-mounted permanent magnets. By relieving the constraint of zero d -axis armature magnetomotive force (MMF) and restraining the backward-rotating MMF components to be zero, round-rotating armature MMF with maximum q -axis armature MMF is achieved, which enables five-phase PMSM to output maximum smooth torque with lower losses and higher efficiency under SC fault condition. To ensure smooth postfault operation in full-speed range, the influence of winding resistance on SC current is further considered, which improves low-speed operation performance. The proposed FTC method features sinusoidal currents with equal amplitude, which ensures better control simplicity and postfault thermal uniformity between phases. The finite-element analysis and experiments are carried out to verify the proposed method.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2021.3084172