Trends in naval ship propulsion drive motor technology

Thongam, J. S.; Tarbouchi, Mohammed; Okou, Aimé Francis; Bouchard, D.; Beguenane, Rachid

doi:10.1109/epec.2013.6802942

Cited by 40 publications

(21 citation statements)

References 15 publications

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“…(α 1 , β 1 ) subspace associated with the primary machine defined by Concordia transformation (α 3 , β 3 ) subspace associated with the secondary machine defined by Concordia transformation ϕ 1 , ϕ 3 phase of first and third harmonic of current with first and third harmonic of electromotive force as references Ψ flux linked in a phase of the machine C N Concordia matrix E 1 (resp. E 3 ) first (resp.…”

Section: Abbreviationsmentioning

confidence: 99%

“…With more than two independent currents, multiphase machines [1] are logically chosen when fault tolerance is required in critical applications, such as historically marine electric propulsion supplied by a current-source inverter and, since the 21st century, in marine [2,3], aerospace [4][5][6][7] and automotive traction [8][9][10][11][12], with multiphase machines supplied by a voltage source inverter. The reason is that, referring to classical wye-coupled three-phase machines, which possess the minimum number of independent currents for achieving a rotating field in normal condition, these machines have more degrees of freedom than the minimum necessary, thus allowing a rotating field even with one opened phase.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Optimized Control Strategies of a High-Speed Traction Machine with Five Phases and Bi-Harmonic Electromotive Force

et al. 2016

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Abstract:The purpose of the paper is to present the potentialities in terms of the control of a new kind of PM synchronous machine. With five phases and electromotive forces whose first (E 1 ) and third (E 3 ) harmonics are of similar amplitude, the studied machine, so-called bi-harmonic, has properties that are interesting for traction machine payload. With three-phase machines, supplied by a mono-harmonic sinusoidal current, the weak number of freedom degrees limits the strategy of control for traction machines especially when voltage saturation occurs at high speeds. As the torque is managed for three-phase machines by a current with only one harmonic, flux weakening is necessary to increase speed when the voltage limitation is reached. The studied five-phase machine, thanks to the increase in the number of freedom degrees for control, aims to alleviate this fact. In this paper, three optimized control strategies are compared in terms of efficiency and associated torque/speed characteristics. These strategies take into account numerous constraints either from the supply (with limited voltage) or from the machine (with limited current densities and maximum acceptable copper, iron and permanent magnet losses). The obtained results prove the wide potentialities of such a kind of five-phase bi-harmonic machine in terms of control under constraints. It is thus shown that the classical Maximum Torque Per Ampere (MTPA) strategy developed for the three-phase machine is clearly not satisfying on the whole range of speed because of the presence of iron losses whose values can no more be neglected at high speeds. Two other strategies have been then proposed to be able to manage the compromises, at high speeds, between the high values of torque and efficiency under the constraints of admissible total losses either in the rotor or in the stator.

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Section: Abbreviationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of Optimized Control Strategies of a High-Speed Traction Machine with Five Phases and Bi-Harmonic Electromotive Force

et al. 2016

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“…Nowadays, multiphase machines are widely used for their fault tolerance and high torque density [1] especially in critical applications, such as marine [2], aerospace [3] and automotive traction [4]. Thanks to the vector control, these machines have an ability to produce torque without pulsation even with nonsinusoidal back-EMFs and non-sinusoidal currents, in similar way to the classical three-phase machines [5].…”

Section: Introductionmentioning

confidence: 99%

Five-phase Bi-harmonic PMSM control under voltage and currents limits

Zahr

Trabelsi

Semail

et al. 2017

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

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Abstract-For a particular five-phase synchronous machine, this paper investigates the sensitivity of a vectorial control strategy on the required peak phase voltage whose value is fundamental for the choice of the DC bus voltage. The specificity of the machine is that the first and third harmonic components of the back electromotive force (back-emf) have the same amplitude. As a consequence, the torque can be produced by one of them or both with suitable currents. This degree of freedom is interesting for optimizing the efficiency and generating high transient torque. However, using two harmonics having the same amplitude leads to a necessity to analyze the constraints on the required phase machine voltage. Considering a Maximum Torque Per Ampere (MTPA) strategy, the paper examines the impact of some parameters such as the phase shift between currents and back-emfs or the ratio between the third and the first harmonic of current on the torque and maximum voltage value. Experimental tests with a limited DC bus voltage have been carried out and compared to the results obtained by a Finite Element Analysis.

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“…In an AES, the propulsion system is as an electirc load on board, the number of prime movers is reduced, the system flexibility is improved and the fuel consumption is further reduced. [25].…”

Section: Electric Propulsion Modulementioning

confidence: 99%

“…The implementation will be various, depending on marine applications. The major categories are ocean-going, station keeping, ice-breaking [24] and naval [25].…”

Section: Electric Propulsion Applicationsmentioning

confidence: 99%

Advanced control of electrical machines in marine applications

Zhai¹

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Trends in naval ship propulsion drive motor technology

Cited by 40 publications

References 15 publications

Comparison of Optimized Control Strategies of a High-Speed Traction Machine with Five Phases and Bi-Harmonic Electromotive Force

Comparison of Optimized Control Strategies of a High-Speed Traction Machine with Five Phases and Bi-Harmonic Electromotive Force

Five-phase Bi-harmonic PMSM control under voltage and currents limits

Advanced control of electrical machines in marine applications

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