Reluctance magnetic gear and flux switching magnetic gear for high speed motor system

Aiso, Kohei; Akatsu, Kan; Aoyama, Yuka

doi:10.1109/ecce.2017.8096470

Cited by 14 publications

(4 citation statements)

References 14 publications

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“…В настоящее время российские проекты кораблей создаются в основном на основе разработок фирмы Schorch. Параметры АД [14] фирмы Schorch и электропривода ВИП-1000-1100 приведены в таблице. Данные по ВИП -предварительные и подлежат уточнению в соответствии с предъявляемыми техническими требованиями.…”

Section: рис 3 вид в сборе с системой охлажденияunclassified

Switched Reluctance Drive SRD-1000-1100 in the Electromotive Systems

Romanovsky¹,

Nikiforov²,

Makarov³

2019

Vestnik GUMRF imeni admirala S. O. Makarova

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Very high demands concerning reliability, operational characteristics and functioning in full are being put on the modern ship electric drives. More than twenty years of experience in the progressive implementation of switched reluctance electric drives of auxiliary mechanisms on submarines and more powerful drives on the supply ship Victor Konetsky has qualitatively developed technologies for designing and producing the switched reluctance drives, successfully competing with permanent-magnet electric motors. The results of the preliminary design of the switched reluctance drive SRD 1000-1100 with a power of 1000 kW, 1100 rpm are considered in the paper. The basic principle of the electric propulsion system representing sectioning the executive control of the propulsion motor into several independently working parts is proposed. The distinctive features and advantages of the switched reluctance drive in comparison with an asynchronous motor are considered, and the oscillogram of a single-phase failure of the switched drive is also shown. The results of the preliminary design of the 1000 kW switched inductor drive have been illustrated. Besides, the structure of the switched reluctance drive 1000-1100, which is shown as the concept of building a complete electric drive, is considered. This concept includes the following aspects: the complete electric drive is based on the modular equipment, the sections separate control is organized, all intellectual control modules are connected by a common CAN network, etc. The parameters for comparing an asynchronous propulsion motor of Schorch company and switched reluctance drive 1000-1100 are shown in the table. Therefore, for propulsion systems there is a tendency to create the electric drive systems based on the switched reluctance motors.Рассмотрены требования, предъявляемые к современным судовым электроприводам, касающиеся надежности, эксплуатационных характеристик и функционирования в полном объеме. Проанализированы данные, подтвержденные более чем двадцатилетним опытом работы по поступательному внедрению вентильных индукторных электроприводов вспомогательных механизмов на подводных лодках и более мощных приводов на корабле-снабженце «Виктор Конецкий», который качественно развил технологии проектирования и производства вентильно-индукторных двигателей, успешно конкурирующих с электродвигателями с постоянными магнитами. В работе рассматриваются результаты аванпроекта вентиль-

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Section: рис 3 вид в сборе с системой охлажденияunclassified

Switched Reluctance Drive SRD-1000-1100 in the Electromotive Systems

Romanovsky¹,

Nikiforov²,

Makarov³

2019

Vestnik GUMRF imeni admirala S. O. Makarova

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“…In 2001, K. Atallah designed a high torque density MG called as the coaxial magnetic gear (CMG), where it applies the principle of magnetic flux modulation between PM and pole piece [18,19]. Based on the flux modulation technique, many CMG topologies were published [20][21][22][23][24][25][26][27][28][29][30]. CMG introduced by K. Atallah is reillustrated in Figure 2 in JMAG Application Note [31].…”

Section: Introductionmentioning

confidence: 99%

Flux modulated rotating pole piece magnetic gear

Halim

Sulaiman

Othman

2020

IJPEDS

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In this paper, the CMG is re-condition so that the pole piece act as the outer rotor instead of surface mount PM. This magnetic coupling of the CMG is similar to the conventional CMG which uses harmonic to transfer the torque and speed from the inner rotor to the outer rotor. The working principle of the proposed CMG is derived analytically and simulated using finite element software. For this recondition, the PM at the outer section become stationary hence, retaining sleeve can be removing. The proposed MG produced 18% higher average torque than the conventional MG with drawback in torque ripple. The proposed CMG also produce higher gear ratio than the same pole pair of conventional CMG.

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“…Research [9,10,11] shows how to optimize the transmitted torque. As long as the torque density can be optimized, the next step will be ensuring the ef iciency of power transmission, an experimental test report of ef iciency improvement [12], and the high-ef iciency in-wheel magnetic gear [13] shows the highly potentiated magnetic with the maximum ef iciency at around 94.4%. Also, the applications for high speed and vibration motor systems and the skewed cogging torque optimization method have been discussed [14,15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Also, it can be shown that the angular speed relationship between each part [11,12] is given by Eq. 2:…”

Section: Introductionmentioning

confidence: 99%

Transmitted Torque Analysis of Coaxial Magnetic Gears with Different Pole-Pair Numbers

Tsai

2019

J. ICT des. eng. technol. sci.

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Transmitted torque is an important performance index of coaxial magnetic gears. This study focuses on the effects of pole-pair numbers on the maximum torque capacity and torque ripple of coaxial magnetic gearsOwing to the magnetic resistance between the pole piece and the medium of air; a torque ripple is generated during magnetic gear operation. In magnetic gear design, maximum torque capacity is considered the higher, the better, and the torque ripple should be the lower, the better. A commercial Finite-element analysis software AN-SYS/Maxwell 2D is applied to simulate the transmitted torque and torque ripple of coaxial magnetic gears by solving the magnetic ield, and mechanical motion coupled models. Model parameters, including size and inertia, are designed via the Autodesk/Inventor. The results of initeelement analysis have shown that there are certain relationships between pole-pair numbers and torque performance. It reveals that the sum of the pole-pair numbers is inversely proportional to the maximum torque capacity; the differences of maximum torque between different polepair number designs could be up to 82%. However, the torque ripple has not been proven for the relationship. For future research, the torque capability per cost would be necessary for magnetic gear product, especially when the price of rare earth metal is seen rising in the past years. Also, the ef iciency of magnetic gear is still important for powertrain system, but it's not easy to reach both high torque and ef iciency, owing to the lux saturation problem. The balance of torque capacity, ef iciency, and cost would be the next challenge.

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Reluctance magnetic gear and flux switching magnetic gear for high speed motor system

Cited by 14 publications

References 14 publications

Switched Reluctance Drive SRD-1000-1100 in the Electromotive Systems

Switched Reluctance Drive SRD-1000-1100 in the Electromotive Systems

Flux modulated rotating pole piece magnetic gear

Transmitted Torque Analysis of Coaxial Magnetic Gears with Different Pole-Pair Numbers

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