The Analysis of Losses in High-Power Fault-Tolerant Machines for Aerospace Applications

Atkinson, Glynn; Mecrow, B.C.; Jack, A.G.; Atkinson, David; Sangha, P.; Benarous, M.

doi:10.1109/tia.2006.880869

Cited by 130 publications

(58 citation statements)

References 17 publications

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“…The new trend of replacing mixed secondary power systems in aircraft with electrical ones has brought forth requirements for light-weight, fault-tolerant machines [47]. To achieve powerful engines in small volumes high-speed machines are necessary.…”

Section: Pm Machines: Overviewmentioning

confidence: 99%

Limits, Modeling and Design of High-Speed Permanent Magnet Machines

Borisavljevic¹

2013

Springer Theses

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Section: Pm Machines: Overviewmentioning

confidence: 99%

Limits, Modeling and Design of High-Speed Permanent Magnet Machines

Borisavljevic¹

2013

Springer Theses

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“…In aerospace motors [1,2,3,4] and marine applications [5,6,7], multiphase drives are widely used. In electrical ships the use of two propellers is often needed [8].…”

Section: Introductionmentioning

confidence: 99%

An efficient control of a series connected two-synchronous motor 5-phase with non sinusoidal EMF supplied by a single 5-leg VSI: Experimental and theoretical investigations

Mekri

Charpentier

Semail

2012

Electric Power Systems Research

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This paper proposes the control scheme of an original drive which is made up of two 5-phase Permanent Magnet Synchronous Machines (PMSM) connected in series. Even if the Electro-Motive Force (EMF) are trapezoidal, it is possible, by using a special series connection between the two machines and by implementing a special vector control, to impose independent torques and speeds with a single five-leg Voltage Source Inverter (VSI). This configuration allows an independent control of two PM machines and needs only five legs instead of six-legs for a classical solution using two independent three phase inverters supplying two three-phase machines. If special series-connection with classical vector control is sufficient to achieve flux/torque decoupling when the EMFs are sinusoidal, it is necessary to modify the control scheme when the EMFs are not sinusoidal.Simulations and experimental results demonstrate efficiency of the independent control of the two 5-phase synchronous machines connected in series, and the efficiency of the improved control for different loads.

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“…With conventional materials like sintered magnets and a metallic retaining sleeve the rotor losses in a similar machine would be in the order of several kilowatts [1]. The authors in [1] intend to submerge the entire machine in aviation fuel, which has excellent cooling properties, but has implementation difficulties. Air is much less effective however and a safe rotor temperature cannot be maintained at this loss level.…”

Section: Introductionmentioning

confidence: 99%

Rotor losses in laminated magnets and an anisotropic carbon fiber sleeve

Geest

Wolmarans

Polinder

et al. 2012

6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012)

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High speed fault tolerant permanent magnet machines have strong asynchronous airgap harmonics, making them susceptible to rotor eddy-current losses. These losses can be reduced by using novel high resistivity materials like plastic bonded magnets and carbon fiber reinforced retaining sleeves. This paper examines by numerical studies the consequences for the losses of using these materials. The effect of laminating the magnets and the losses in the anisotropic sleeve are analysed with 3D simulations, using simplifications determined with 2D simulations. The anisotropic resistivity of the sleeve roughly doubles the losses compared to an isotropic sleeve, while laminating the magnets in n slices reduces the losses by 1/n 1.8 .

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The Analysis of Losses in High-Power Fault-Tolerant Machines for Aerospace Applications

Cited by 130 publications

References 17 publications

Limits, Modeling and Design of High-Speed Permanent Magnet Machines

Limits, Modeling and Design of High-Speed Permanent Magnet Machines

An efficient control of a series connected two-synchronous motor 5-phase with non sinusoidal EMF supplied by a single 5-leg VSI: Experimental and theoretical investigations

Rotor losses in laminated magnets and an anisotropic carbon fiber sleeve

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