Torque Density of Radial, Axial and Transverse Flux Permanent Magnet Machine Topologies

Pippuri, Jenni; Manninen, Aino; Keränen, Janne; Tammi, Kari

doi:10.1109/tmag.2013.2238520

Cited by 35 publications

(19 citation statements)

References 5 publications

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“…

P_{turbine} = \frac{1}{2} ρ π R^{2} C_{p} ((),, λ, β) {V_{w}}^{3}

T_{m} = \frac{P_{m}}{ω_{m}} = \frac{\frac{1}{2} ρ π R^{2} C_{p} ((),, λ, β) {V_{w}}^{3}}{ω_{m}}

where ρ (kg/m 3 ) is the air density, R (m) is the blade radius, V w (m/s) is the wind speed, C p is the power coefficient of the wind turbine, and

ω_{m} ((), \frac{italicrad}{s})

is the mechanical angular speed of the turbine. C p is obtained from (22) to (24) .

C_{p} = c_{1} ((), c_{2} \frac{1}{α} - c_{3} β - c_{4} β^{x} - c_{5}) e^{- c_{6} \frac{1}{α}}

\frac{1}{α} = \frac{1}{λ + 0 true/ 08 β} - \frac{0 true/ 035}{1 + β^{3}}

λ = \frac{ω_{m} R}{V_{w}}

where λ and β are the tip speed ratio and pitch angle of the blades, respectively.…”

Section: Proposed Small‐scale Gearless Wecs Based On Considered Tfpmsgmentioning

confidence: 99%

“…

C_{p} = c_{1} ((), c_{2} \frac{1}{α} - c_{3} β - c_{4} β^{x} - c_{5}) e^{- c_{6} \frac{1}{α}}

\frac{1}{α} = \frac{1}{λ + 0 true/ 08 β} - \frac{0 true/ 035}{1 + β^{3}}

λ = \frac{ω_{m} R}{V_{w}}

where λ and β are the tip speed ratio and pitch angle of the blades, respectively. The amount of terms c 1 – c 6 are dependent on the type of the turbine . The relation between the turbine power coefficient and the tip speed ratio is depicted in Figure .…”

Section: Proposed Small‐scale Gearless Wecs Based On Considered Tfpmsgmentioning

confidence: 99%

“…Ref. deals with analysis of TFPM cogging torque and comparison of torque density in radial, axial, and transverse flux permanent magnet machines.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

3D FEM analysis, dynamic modeling, and performance assessment of transverse flux PMSG for small‐scale gearless wind energy conversion systems

Behjat

Boushehry

2015

Int J Numerical Modelling

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The transverse flux permanent magnet synchronous generator has a great potential for use in direct-drive wind energy conversion systems due to its large pole numbers, high torque, and power density. This research work develops dynamic model of a single-side transverse flux permanent magnet synchronous generator for use in a small-scale gearless wind energy conversion system. For acquiring the parameters of the considered generator, required for dynamic modeling, 3D finite element model of the machine is developed and analyzed in both magneto-static and transient modes. Field-oriented control approach is employed for tracking maximum power point from the variable wind speed. The simulation results illustrate an accurate response of the system to the wind speed variation and proper performance of the developed dynamic model and control approach of the system.

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“…

P_{turbine} = \frac{1}{2} ρ π R^{2} C_{p} ((),, λ, β) {V_{w}}^{3}

T_{m} = \frac{P_{m}}{ω_{m}} = \frac{\frac{1}{2} ρ π R^{2} C_{p} ((),, λ, β) {V_{w}}^{3}}{ω_{m}}

where ρ (kg/m 3 ) is the air density, R (m) is the blade radius, V w (m/s) is the wind speed, C p is the power coefficient of the wind turbine, and

ω_{m} ((), \frac{italicrad}{s})

is the mechanical angular speed of the turbine. C p is obtained from (22) to (24) .

C_{p} = c_{1} ((), c_{2} \frac{1}{α} - c_{3} β - c_{4} β^{x} - c_{5}) e^{- c_{6} \frac{1}{α}}

\frac{1}{α} = \frac{1}{λ + 0 true/ 08 β} - \frac{0 true/ 035}{1 + β^{3}}

λ = \frac{ω_{m} R}{V_{w}}

where λ and β are the tip speed ratio and pitch angle of the blades, respectively.…”

Section: Proposed Small‐scale Gearless Wecs Based On Considered Tfpmsgmentioning

confidence: 99%

“…

C_{p} = c_{1} ((), c_{2} \frac{1}{α} - c_{3} β - c_{4} β^{x} - c_{5}) e^{- c_{6} \frac{1}{α}}

\frac{1}{α} = \frac{1}{λ + 0 true/ 08 β} - \frac{0 true/ 035}{1 + β^{3}}

λ = \frac{ω_{m} R}{V_{w}}

Section: Proposed Small‐scale Gearless Wecs Based On Considered Tfpmsgmentioning

confidence: 99%

See 1 more Smart Citation

3D FEM analysis, dynamic modeling, and performance assessment of transverse flux PMSG for small‐scale gearless wind energy conversion systems

Behjat

Boushehry

2015

Int J Numerical Modelling

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show abstract

“…al. investigated the torque density of radial, axial and transverse flux machine topologies for a 10-kW, 200min -1 motor [2]. Zhao et.…”

Section: Introductionmentioning

confidence: 99%

A Novel Radial- and Axial-Flux Permanent Magnet Synchronous Motor

Ishikawa

Fukuda

2019

Journal of the Japan Society of Applied Electromagnetics and Me

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This paper proposes and fabricates a novel hybrid-flux permanent magnet motor with both axial-and radial-flux. The performance of the proposed motor is measured under the vector control, and is compared with that of only radialflux part. The efficiency of the hybrid-flux motor is about 71.1 % at 100 min -1 and about 80.1 % at 200 min -1 in the region where the output power is large. The efficiency is about 8.2 % higher at 100 min -1 and 3.6 % higher at 200 min -1 than those of only radial-flux part.

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“…Transverse flux permanent magnet machine (TFPMM) is a novel PM machine (PMM), which is entirely structurally decoupling between electrical circuit and magnetic circuit for multi-pole design and has higher torque density than the traditional radial and axial PMMs [1][2][3]. Therefore, it can be used for low speed large capacity wind power generation.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic design and analysis of a novel flux-concentrated transverse flux permanent magnet disk generator

Yan

Lin

et al. 2014

2014 17th International Conference on Electrical Machines and Systems (ICEMS)

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In this paper, a novel flux concentrated transverse flux permanent magnet disk generator (FC-TFPMDG) is proposed, which features higher PM utilization and lower harmonic distorted no-load electromotive force (EMF) so that it is ideal for use as lower speed direct drive wind generator. The structure and the operation principle of this generator are illustrated in detail. Besides, the electromagnetic design and analysis of the generator are carried out by using threedimensional (3-D) finite element analysis (FEA).Index Terms-disk generator, finite element analysis, flux concentrated, transverse flux, wind generator.

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Torque Density of Radial, Axial and Transverse Flux Permanent Magnet Machine Topologies

Cited by 35 publications

References 5 publications

3D FEM analysis, dynamic modeling, and performance assessment of transverse flux PMSG for small‐scale gearless wind energy conversion systems

3D FEM analysis, dynamic modeling, and performance assessment of transverse flux PMSG for small‐scale gearless wind energy conversion systems

A Novel Radial- and Axial-Flux Permanent Magnet Synchronous Motor

Electromagnetic design and analysis of a novel flux-concentrated transverse flux permanent magnet disk generator

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