Effect of Current Harmonic Injection on Constant Rotor Volume Multiphase Induction Machine Stators: A Comparative Study

Abdel‐Khalik, Ayman S.; Masoud, Mahmoud I.; Ahmed, Shehab; Massoud, Ahmed M.

doi:10.1109/tia.2012.2226191

Cited by 58 publications

(42 citation statements)

References 26 publications

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“…Assuming the measured back EMF of phase A with respect to can be expressed in a Fourier series as Since there are no zero sequence currents in the 3-phase system without access of neutral point [25], the third harmonics in the back EMFs do not contribute to the torque. If only the fundamental, fifth and seventh harmonics in the back EMF are considered, the coefficients of phase back EMF in (3) can be obtained from TABLE II and listed in TABLE III. According to (14), the torque of the prototype dual-three phase PMSM can be rewritten as (16) when the optimized current in Fig. 2 From (16), it can be concluded that the average torque capability can be enhanced by 8.6% for the prototype dual 3-phase PMSM with the fifth and seventh current harmonics injection, while the 12th harmonic torque ripple is only 0.56% , which is negligible.…”

Section: A Coefficients Of Fifth and Seventh Current Harmonicsmentioning

confidence: 99%

“…For a new prototype machine, the torque enhancement can be evaluated by (14) if the back-EMF is known by measurement. The evaluation procedure can be summarized in Fig.…”

Section: A Coefficients Of Fifth and Seventh Current Harmonicsmentioning

confidence: 99%

“…Compared to the single 3-phase counterparts, the dual 3-phase system has the advantage of additional freedom of current harmonics injection, which results in the power and torque capability enhancement [3,[12][13][14]. For example, the third current harmonics are injected into the stator phase currents to enhance the average torque of a 5-phase induction machine (IM) [13,15,16] and PMSM [17].…”

Section: Introductionmentioning

confidence: 99%

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Torque Capability Enhancement of Dual Three-Phase PMSM Drive With Fifth and Seventh Current Harmonics Injection

Zhu

Odavić

2017

IEEE Trans. on Ind. Applicat.

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© 2017. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works. Reproduced in accordance with the publisher's self-archiving policy.eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.Abstract --A method for enhancing torque capability of a dual 3-phase permanent magnet synchronous machine (PMSM) based on conventional dual 3-phase drive system by injecting the fifth and seventh current harmonics without any hardware re-configuration is proposed in this paper. Compared with the third current harmonic injection which is commonly used to enhance torque capability of dual three-phase machine, the two isolated neutral points of each set of single 3-phase windings do not need to be re-connected to the middle point of dc-link capacitors or an additional power switching bridge to provide flowing path for zerosequence current. Further, no additional current sensors are required to obtain the feedback of zero-sequence current to regulate it effectively. For a prototype dual 3-phase PMSM, the average torque increases approximately by 9% at the cost of 0.56% increase in the 12th harmonic torque ripple. The effectiveness of the torque capability enhancement is confirmed by experiments.

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Section: A Coefficients Of Fifth and Seventh Current Harmonicsmentioning

confidence: 99%

“…For a new prototype machine, the torque enhancement can be evaluated by (14) if the back-EMF is known by measurement. The evaluation procedure can be summarized in Fig.…”

Section: A Coefficients Of Fifth and Seventh Current Harmonicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Torque Capability Enhancement of Dual Three-Phase PMSM Drive With Fifth and Seventh Current Harmonics Injection

Zhu

Odavić

2017

IEEE Trans. on Ind. Applicat.

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“…This type of machine is being extensively used in several applications [1][2][3]. In the literature many multi-phases machine topics have been addressed, such as multi-phase machine advantages, properties, modeling, and performance with different control techniques [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…It's possible to use numerical methods (i.e., finite elements or the finite differences) [3,6,7] to analysis the electromagnetic performances of multi-phase induction machines, and their react against fault in rotor bars or in ones of their phases. However these approaches are time consuming and not suitable for the optimization problems.…”

Section: Introductionmentioning

confidence: 99%

Analytical Electromagnetic Analysis of Multi-Phases Cage Rotor Induction Motors in Healthy, Broken Bars and Open Phases Conditions

Roubache¹,

Boughrara²,

Ibtiouen³

2016

PIER B

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Abstract-This paper presents an analytical calculation of magnetic field and electromagnetic performances of 3-, 5-, 7-, 9-, 11-phases cage rotor induction machines in healthy, broken bars and open phase's conditions. This model is formulated to consider all types of multi-phase/multipoles windings and used for the identification of electrical equivalent circuit (EEC) parameters It's based on the subdomain model and the resolution of Poisson's, Laplace's, and Helmholtz's equations in each subdomain issued from Maxwell equations using the method of separation of variables and Fourier series when the machines are fed with sinusoidal current and voltage. The developed analytical model permits the calculation of magnetic field distribution, eddy current, circuit model parameters, and unbalanced magnetic radial force due to broken bars, electromagnetic torque and absorbed stator current. A comparative analysis between the studied five multi-phases machines is done with considering identical power rate. The analytical results are validated by those issued from the finite-element method (FEM).

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RETRACTED ARTICLE: Performance evaluation of an intelligent decoupled stationary reference PLL for grid synchronization of five-phase wind power conversion system

Chandramohan¹,

Rajambal²

2020

J Ambient Intell Human Comput

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Effect of Current Harmonic Injection on Constant Rotor Volume Multiphase Induction Machine Stators: A Comparative Study

Cited by 58 publications

References 26 publications

Torque Capability Enhancement of Dual Three-Phase PMSM Drive With Fifth and Seventh Current Harmonics Injection

Torque Capability Enhancement of Dual Three-Phase PMSM Drive With Fifth and Seventh Current Harmonics Injection

Analytical Electromagnetic Analysis of Multi-Phases Cage Rotor Induction Motors in Healthy, Broken Bars and Open Phases Conditions

RETRACTED ARTICLE: Performance evaluation of an intelligent decoupled stationary reference PLL for grid synchronization of five-phase wind power conversion system

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