High torque density transverse flux permanent magnet machine design for wind power generation

Tovar-Barranco, Aitor; Gómez, Dolores; López-de-Heredia, A.; Villar, Irma

doi:10.1109/icelmach.2016.7732615

Cited by 12 publications

(16 citation statements)

References 10 publications

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“…There is no doubt that designing a wind power generator with high reliability, high power, and torque density as well as easy assembly is one of the key technologies in a wind power generation system. Nowadays, transverse flux permanent magnet generators (TFPMG) have received great attention for wind power applications, since they have the possibility to attain a high torque and power density due to the unique transverse flux in the magnetic circuit [2].…”

Section: Introductionmentioning

confidence: 99%

A Novel Transverse Flux Permanent Magnet Disk Wind Power Generator with H-Shaped Stator Cores

et al. 2018

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This paper presents a novel transverse flux permanent magnet disk generator (TFPMDG) for wind power generation. The main features of its structure are the modular H-shaped stator cores and two simple rotor disks. What is different from the structures introduced in the references is that each H-shaped stator core is formed by two T-shaped iron cores and a permanent magnet (PM) rather than a complete H-shaped core, which makes the manufacturing simpler and easier. Each rotor disk consists of a rotor holder and several rotor bars, resulting in high robustness and reliability. Moreover, two circular coils in the H-shaped stator cores together with the stator disk are sandwiched by the two rotor disks, which improves the utilization of PMs. In this paper, the proposed TFPMDG is investigated in detail. Firstly, the structure and operating principle are introduced. Then, the magnetic circuit method is used to analyze the TFPMDG. Next, the three-dimensional (3D) finite element method (FEM) is employed to compute the magnetic field distribution and EMF at no load. According to the calculation result, the other three TFPMDGs with different shapes of rotor cores are proposed and analyzed for better back EMF, and then a generator with good performance is selected for load analysis. Finally, a prototype is fabricated and tested, and the simulated results are compared with the measured ones, which proves the rationality of the simulated results.

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Section: Introductionmentioning

confidence: 99%

A Novel Transverse Flux Permanent Magnet Disk Wind Power Generator with H-Shaped Stator Cores

et al. 2018

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“…This arrangement increases the flux linkage by 90%. The doublesided TFPM machine with iron-bridge for wind power applications is proposed in [99]. The machine comprises of C-core stator, pancake shape rotor and I shape magnetic shunt.…”

Section: ) Double-sidedmentioning

confidence: 99%

“…It is observed that a high split ratio is responsible for low power factor in the TFPM machine at fixed electrical and magnetic loadings. The shapes of the magnet and stator tooth have been optimized for high power factor in [99]. The minimization of magnetic flux loss for a better power factor in surface-mounted TFPM is done by utilizing an iron-bridge [123].…”

Section: F Power Factormentioning

confidence: 99%

A Review on Transverse Flux Permanent Magnet Machines for Wind Power Applications

et al. 2020

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Transverse flux permanent magnet (TFPM) machines are a potential candidate for directdrive wind power application due to high torque and power densities. The operating principle of TFPM machines is firstly described with various topologies available in literature, with the placement of magnets as a criterion for the classification of TFPM machine topologies. This review includes characteristics, power factor improvement, cogging torque minimization, material consideration, modelling techniques, and scalability. Different wind turbine concepts with direct-drive machines, control techniques and power converter topologies are also considered in this paper. INDEX Permanent magnet, topologies, transverse flux, and wind power.

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“…They suffer from high attraction forces between rotor and stator due to Maxwell stresses, which increase the structural mass of the generator. There are also non-conventional generators such as claw-pole or transverseflux machines [17,18], but they operate at low power factors [19,20]. Super-conducting direct-drive generators are also studied, and they promise high torque densities [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Axial flux generator with novel flat wire for direct‐drive wind turbines

Cakal

Keysan

2021

IET Renewable Power Gen

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With the increased demand for renewable energy resources, the direct-drive wind turbine generators have been studied intensely in the last few decades. One megawatt direct-drive axial flux permanent magnet generator is presented. The novelty in this design is that instead of conventional stranded wires, the windings of the generator are manufactured from a conductor sheet by cutting and bending processes. This creates critical advantages of superior current ratings, ease of manufacturing, and reduced structural mass. An optimization study is conducted with the presented fully analytical model, and the optimum design is compared with the other wind power generators presented in the literature. At the end, a 1 MW, 480 kNm, and 16 tons direct-driven generator is achieved.

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High torque density transverse flux permanent magnet machine design for wind power generation

Cited by 12 publications

References 10 publications

A Novel Transverse Flux Permanent Magnet Disk Wind Power Generator with H-Shaped Stator Cores

A Novel Transverse Flux Permanent Magnet Disk Wind Power Generator with H-Shaped Stator Cores

A Review on Transverse Flux Permanent Magnet Machines for Wind Power Applications

Axial flux generator with novel flat wire for direct‐drive wind turbines

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