Improved Transverse Flux Directly - Driven Wind PM Generator: Optimal Design with Key FEM Validation

Andonie, Ovidiu Flaviu; Tutelea, Lucian; Popa, Ana; Boldea, Ion

doi:10.1109/icelmach.2018.8506812

Cited by 2 publications

(11 citation statements)

References 4 publications

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“…Wind power (G) [15,17,26,[58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77]. Direct-drive wind generators are part of the so-called variable speed wind turbines.…”

Section: Applicationsmentioning

confidence: 99%

“…PMs length has a significant effect on the machine performance, but the number of poles is predominant [23]. Besides, if PMs are axially longer than the stator cores, the fringing flux in the axial direction produces torque [63,78,80].…”

Section: Air Gap (Radial Axial)mentioning

confidence: 99%

“…Disc-shaped rotor is a typical feature of axial-gap machines [15,17,[59][60][61]63,66,68,69,72,76,81,87,91,110,114,115]. A claw-pole TFM with a discoid rotor produces more torque than other machine with a similar volume and cylindrical rotor [87].…”

Section: Rotor (Inner Outer Disk)mentioning

confidence: 99%

“…Most double-sided transverse-flux structures are based on the axial gap and disk rotor [15,17,59,60,63,68,69,72,76,81,91,114,115], skewed U-cores [14,120], hook-shaped cores [67], E-cores [108,126], H-cores [66] or a duplication of the stator on both sides of the rotor [127,128].…”

Section: Stator Arrangement (Single-sided Double-sided)mentioning

confidence: 99%

“…TFMs have a small air gap and large diameter, and this can be advantageous in terms of mass and cost for wind power applications [73]. TFMs up to 5 m in diameter can be found in the literature [63], but most of them lay in the range of 0.1 to 0.25 m. The ratio of the stack length to the air gap diameter is a wide-used parameter in analytical design methods of TFMs [24,129,130]. In most of the TFMs found in the literature, the axial length is shorter than the outer diameter of the machine.…”

Section: Pole Pairs and Sizementioning

confidence: 99%

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A Review of Transverse Flux Machines Topologies and Design

2021

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High torque and power density are unique merits of transverse flux machines (TFMs). TFMs are particularly suitable for use in direct-drive systems, that is, those power systems with no gearbox between the electric machine and the prime mover or load. Variable speed wind turbines and in-wheel traction seem to be great-potential applications for TFMs. Nevertheless, the cogging torque, efficiency, power factor and manufacturing of TFMs should still be improved. In this paper, a comprehensive review of TFMs topologies and design is made, dealing with TFM applications, topologies, operation, design and modeling.

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