Research on the vector control strategy of five-phase permanent-magnet synchronous machine based on third-harmonic current injection

Sui, Yi; Zheng, Ping; Fan, Yuting; Zhao, Jie

doi:10.1109/iemdc.2017.8002355

Cited by 11 publications

(8 citation statements)

References 7 publications

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“…Therefore, the field torque T fn generated by i fn is obtained according to (15), (18), (19), and (33)…”

Section: Theoretical Analysis Of Harmonic Field Current Injectionmentioning

confidence: 99%

“…A third‐order harmonic current injection method for a five‐phase PM motor is introduced to reduce the torque ripple [17]. With the third‐harmonic current component considered, the vector control strategy of five‐phase PMSM is investigated, which indicates that the torque ripple can be improved by injecting the third‐harmonic current [18]. The acoustic noise and torque ripple of a switched reluctance machine can be reduced by the introduction of a phase shift to the second‐ and third‐order harmonic current [19].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of cogging torque reduction for a 6/10 hybrid axial field flux‐switching permanent magnet machine by harmonic field current injection

Jiang

et al. 2020

IET Electric Power Applications

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Hybrid axial field flux‐switching permanent magnet (HAFFSPM) machine exhibits a high‐cogging torque due to its doubly salient structure and flux focusing effect. In consideration of the armature and field windings are both equipped in the HAFFSPM machine, a cogging torque reduction method by the harmonic field current injection is proposed in this study. Initially, the mathematical model of the HAFFSPM machine is analysed. Moreover, the theoretical principle of the proposed method is investigated based on the analytical model of the machine. The amplitude and phase angle of the injected current are calculated according to the harmonic component of the cogging torque. The feasibility of the proposed method is analysed and validated by both the finite‐element analysis method and experiments on the prototype. Finally, the comparison between the proposed method and several topology optimisation methods of the HAFFSPM machine is given to indicate the priority of the harmonic field current injection method on cogging torque reduction.

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“…Therefore, the field torque T fn generated by i fn is obtained according to (15), (18), (19), and (33)…”

Section: Theoretical Analysis Of Harmonic Field Current Injectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of cogging torque reduction for a 6/10 hybrid axial field flux‐switching permanent magnet machine by harmonic field current injection

Jiang

et al. 2020

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…Optimal level of the third harmonic current injection has been investigated in [10], [16]- [18]. In [10], the MTPA method, combined with the stator current RMS constraint, was used.…”

Section: Introductionmentioning

confidence: 99%

General Torque Enhancement Approach for a Nine-Phase Surface PMSM With Built-In Fault Tolerance

Slunjski

Stiscia

Jones

et al. 2021

IEEE Trans. Ind. Electron.

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The paper investigates maximum possible torque improvement in a two-pole surface permanent magnet synchronous machine (PMSM) with a reduced magnet span, which causes production of highly nonsinusoidal back-EMF. It contains a high third and fifth harmonics, which can be used for the torque enhancement, using stator current harmonic injection. Optimal magnet span is studied first and it is shown that with such a value the machine would be able to develop an insignificantly lower maximum torque than with the full magnet span. Next, field-oriented control (FOC) algorithm, which considers all non-fundamental EMF components lower than the machine phase number, is devised. Using maximum-torque per Ampere (MTPA) principles, optimal ratios between fundamental and all other injected components are calculated and then used in the drive control. The output torque can be in this way increased up to 45% with respect to the one obtainable with fundamental current only. Alternatively, for the same load torque, stator current RMS value can be reduced by 45%. Last but not least, a method for position sensor fault mitigation is introduced. It is based on the alternative use of a back-EMF harmonic for rotor position estimation, instead of the torque enhancement. Experimental verification is provided throughout for all the relevant aspects.

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“…In the case of machines characterized by an odd number of phases and a symmetrical winding configuration, it has been verified that, based on the stator winding loss minimization criterion, the optimal injection ratio coincides with the one between the corresponding magnets' induced back-EMFs [4][5][6][7][8][9][10][11][12][13]. Several applications of these strategies can be found, especially for five-phase machines [9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Optimal Third-Harmonic Current Injection for Asymmetrical Multiphase Permanent Magnet Synchronous Machines

Cervone

Slunjski

Levi

et al. 2021

IEEE Trans. Ind. Electron.

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Research on the vector control strategy of five-phase permanent-magnet synchronous machine based on third-harmonic current injection

Cited by 11 publications

References 7 publications

Investigation of cogging torque reduction for a 6/10 hybrid axial field flux‐switching permanent magnet machine by harmonic field current injection

Investigation of cogging torque reduction for a 6/10 hybrid axial field flux‐switching permanent magnet machine by harmonic field current injection

General Torque Enhancement Approach for a Nine-Phase Surface PMSM With Built-In Fault Tolerance

Optimal Third-Harmonic Current Injection for Asymmetrical Multiphase Permanent Magnet Synchronous Machines

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