Design and optimization of a new dual-rotor Vernier machine for wind-turbine application

Alavijeh, Mohammad Mirzaei; Mirsalim, Mojtaba

doi:10.1109/icee50131.2020.9260840

Cited by 2 publications

(3 citation statements)

References 18 publications

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“…The working harmonics of the proposed DPMV machine are identified based on the magnetic field modulation, and the 19th-order harmonic is the largest contributor. In order to further improve the average torque of the DPMV machine, two main aspects can be taken from (16). On one hand, phase angle reconfiguration makes the phase difference between the radial and tangential of the 19thorder harmonics smaller.…”

Section: New Design To Improve Torquementioning

confidence: 99%

“…The PMV machines can be divided into two types depending on the location of PM, namely Stator-PM (PMS) and Rotor-PM (PMR) styles [14]. Further, [15,16] proposed a novel PMV machine with double stator and double rotor, respectively. These machines achieve higher energy transmission and power conversion than the single stator or rotor counterparts.…”

Section: Introductionmentioning

confidence: 99%

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Improving Torque Analysis and Design Using the Air-Gap Field Modulation Principle for Permanent-Magnet Hub Machines

Sun,

Bianchi,

et al. 2023

Energies

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The Double Permanent Magnet Vernier (DPMV) machine is well known for its high torque density and magnet utilization ratio. This paper aims to investigate the torque generation mechanism and its improved design in DPMV machines for hub propulsion based on the field modulation principle. Firstly, the topology of the proposed DPMV machine is introduced, and a commercial PM machine is used as a benchmark. Secondly, the rotor PM, stator PM, and armature magnetic fields are derived and analyzed considering the modulation effect, respectively. Meanwhile, the contribution of each harmonic to average torque is pointed out. It can be concluded that the 7th-, 12th-, 19th- and 24th-order flux density harmonics are the main source of average torque. Thanks to the multi-working harmonic characteristics, the average torque of DPMV machines has significantly increased by 31.8% compared to the counterpart commercial PM machine, while also reducing the PM weight by 75%. Thirdly, the auxiliary barrier structure and dual three-phase winding configuration are proposed from the perspective of optimizing the phase and amplitude of working harmonics, respectively. The improvements in average torque are 9.9% and 5.4%, correspondingly.

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Section: New Design To Improve Torquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving Torque Analysis and Design Using the Air-Gap Field Modulation Principle for Permanent-Magnet Hub Machines

Sun,

Bianchi,

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…An outer rotor configuration also makes it possible to directly couple the generator rotor to the rotating turbine hub and thereby simplifies the drivetrain system. Because of these benefits, the Vernier generators proposed for wind power applications in the literature mostly has an outer rotor topology [17]- [19], [95]- [99]. The direct-drive wind generators have a ring-shaped structure because of their large diameter and thin back irons.…”

Section: E Pm-v Machines For Wind Power Applicationmentioning

confidence: 99%

Permanent Magnet Vernier Machines for Direct-Drive Offshore Wind Power: Benefits and Challenges

Padinharu

Zhu

et al. 2022

IEEE Access

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Permanent magnet Vernier (PM-V) machines, at low power levels (few kWs), have shown a great potential to improve the torque density of existing direct-drive PM machines without much compromising on efficiency or making the machine structure more complicated. An improved torque density is very desirable for offshore wind power applications where the size of the direct-drive machine is an increasing concern. However, the relatively poor power factors of the PM-V machines will increase the power converter rating and hence cost. The objective of this paper is to review the benefits and challenges of PM-V machines for direct-drive offshore wind power applications. The review has been presented considering the system-level (direct-drive generator + converter) performance comparison between the surface-mounted permanent magnet Vernier (SPM-V) machines and the conventional SPM machines. It includes the indepth discussion on the challenges facing the PM-V machines when they are scaled up for multi-MW offshore wind power application. Other PM-V topologies discussed in literature have also been reviewed to asses their suitability for offshore wind power application.

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Design and optimization of a new dual-rotor Vernier machine for wind-turbine application

Cited by 2 publications

References 18 publications

Improving Torque Analysis and Design Using the Air-Gap Field Modulation Principle for Permanent-Magnet Hub Machines

Improving Torque Analysis and Design Using the Air-Gap Field Modulation Principle for Permanent-Magnet Hub Machines

Permanent Magnet Vernier Machines for Direct-Drive Offshore Wind Power: Benefits and Challenges

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