Design and testing of a 4 phase fault tolerant permanent magnet machine for an engine fuel pump

Mecrow, B.C.; Jack, A.G.; Atkinson, David; Green, S.; Atkinson, Glynn; King, A.; Green, B.

doi:10.1109/iemdc.2003.1210407

Cited by 9 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fractional slot winding machines are gaining popularity for its reduced end winding losses and mass and can be used in fault tolerant applications [9][10][11][12].Different slot pole combinations of fractional slot windings were investigated to find the best one with the highest efficiency and lower mass. The first 3 topologies are double layer winding machines while the 4 th one is a single layer winding structure.…”

Section: A Laminated Fractional Slots Machine Topologiesmentioning

confidence: 99%

Optimisation of Permanent Magnet Machine Topologies Suitable for Solar Powered Aircraft

Ullah

Kimiabeigi

Scholes

et al. 2018

2018 XIII International Conference on Electrical Machines (ICEM)

View full text Add to dashboard Cite

Electrification of aircraft has become a hot topic in recent years both in civil aviation and unmanned aerial vehicles. The latter domain is gaining in popularity for its high altitude applications, particularly for bringing widespread internet coverage. This paper presents the work done on the optimisation of different types and topologies of permanent magnet electrical machines that can be considered as the main contenders for such application. These topologies consist of both laminated steel core and airgap winding machines. Instead of copper, compressed aluminium windings were considered which will help in reducing the overall mass of the stator. All the topologies were simulated both under takeoff and cruise condition. Each machine had to fulfil a certain thermal constraint (current density) before being simulated at cruise condition in order to find the objective function of the final design. The best topology was chosen based on high efficiency in cruise condition with reduced mass.

show abstract

Section: A Laminated Fractional Slots Machine Topologiesmentioning

confidence: 99%

Optimisation of Permanent Magnet Machine Topologies Suitable for Solar Powered Aircraft

Ullah

Kimiabeigi

Scholes

et al. 2018

2018 XIII International Conference on Electrical Machines (ICEM)

View full text Add to dashboard Cite

show abstract

“…Various works document how adopting such a configuration enhances the sinusoidal shape of the air-gap flux density [7], thus improving the ratio of the fundamental air-gap flux B g1 component to the total air-gap flux B g . Having a high value of this ratio ameliorates the torque capability of the machine [1], as it is B g1 that actually produces the torque, whilst the total B g has other effects such as on the saturation levels in the stator.…”

Section: The Use Of Halbach Arraysmentioning

confidence: 99%

Torque density improvements for high performance machines

Galea

Hamiti

Gerada

2013

2013 International Electric Machines &Amp; Drives Conference

View full text Add to dashboard Cite

Φ Abstract -In this paper, the main aim is to propose and investigate possible methods for extending and improving the torque density capabilities of high performance, electrical machines. This is achieved by combining performance enhancing strategies such as the use of an outer rotor, the use of cobalt iron laminations and the adoption of high performance winding arrangements into a structured methodology that details the potential improvements step by step. A main point of interest of this paper is the permanent magnet demagnetisation analysis, resulting in the adoption of an optimum arrangement of a five stage, full-Halbach array. The above is presented in terms of an electrical machine used as an in-wheel motor in an aircraft traction application. Index Terms --Aerospace, Halbach arrays, high torque density, permanent magnets, synchronous machines I. INTRODUCTIONLECTRICAL machines for mobile applications such as the rail, aerospace and automotive industries have strong requirements for power and torque density. On top of this, reliability, cost-effectiveness, efficiency and availability are generally, additional, desirable requirements. This paper will look at methodologies for maximising torque density for a given application. The application considered is that of an in-wheel motor for aircraft traction. The machine is an outer rotor, permanent magnet (PM) machine which will be directly coupled to the aircraft wheel. A feasibility study and an electro-magnetic study of an electrical machine for such an application was presented in a previous paper [1].Considering the high torque density, fault tolerance and reliability requirements associated with such an application, the initial investigations indicate a 36-slot/42-pole, PM synchronous machine (PMSM) with an outer rotor as the most promising technology. In [1], measures to enhance the torque capability of the machine were identified, including measures to improve the winding factor K w , measures to obtain the best possible air-gap flux density B g (i.e. improve the fundamental component B g1 and minimise air-gap, spatial harmonics) and efforts to decrease the copper loss.In the first part of this paper, these torque improving measures are investigated and comparisons in terms of a set of quantifiable, quality indicating (QI) parameters are given. The second part of the paper builds on the methodologies presented in [1] in order to meet the application performance requirements. Design considerations for torque ripple T rip minimisations are presented while PM demagnetisation issues are also addressed.

show abstract

“…The advancement in power electronics and electric drives is expected to enhance the reliability, fault tolerance, power density and performance of the concept of the more electric aircraft or all electric airplane [1][2][3][4] . The aero-motor is the key technology in electro-mechanical actuation system of aircraft for providing engine start and power to electric driven pumps and other electrical loads and actuators [1][2][3] . In the electro-mechanical actuation systems, safety is critical, so electrical drives with fault tolerant are required [1][2][3][4] .…”

Section: Introductionmentioning

confidence: 99%

Fault Tolerant Scheme of Switched Reluctance Machines for the Electro-Mechanical Actuation Systems

Chen

2013

AMM

View full text Add to dashboard Cite

As switched reluctance machines (SRM) generally offer a simple and robust design, they are very suitable for electromechanical actuation systems which need to be actuated by fault tolerant drives. This paper investigates dual-channel, dual-redundancy, lacking phase schemes of SRM guaranteeing fault tolerance and the corresponding control systems in detail are compared to point out the advantages and disadvantages of them., a new lacking phase scheme for 12/8 SRM is proposed and the finite element model based on field-circuit coupling is established, results indicate that this scheme have superior fault tolerant performance and suit tasks in electro-mechanical actuation system of aerospace environments.

show abstract

Design and testing of a 4 phase fault tolerant permanent magnet machine for an engine fuel pump

Cited by 9 publications

References 12 publications

Optimisation of Permanent Magnet Machine Topologies Suitable for Solar Powered Aircraft

Optimisation of Permanent Magnet Machine Topologies Suitable for Solar Powered Aircraft

Torque density improvements for high performance machines

Fault Tolerant Scheme of Switched Reluctance Machines for the Electro-Mechanical Actuation Systems

Contact Info

Product

Resources

About