Principle and Basic Characteristics of a Flux-Modulating Hybrid Field Motor

Jike, Naoya; Fukami, Tadashi; Koyama, Masato; Mitsuda, Hiroshi; Ito, Kazumasa; Yamada, Masaki

doi:10.1541/ieejias.140.542

Cited by 7 publications

(1 citation statement)

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“…In these magnets, dysprosium, terbium, and other rare earths are often added to neodymium to improve heat resistance. There are concerns about rising price and supply instability of the rare earths; in this context, many a research has been conducted recently on magnet‐free motors using only wound field 1–3 and hybrid field motors that reduce amount of magnets by utilizing wound field 4–10 …”

Section: Introductionmentioning

confidence: 99%

Experimental verification of power factor adjustor with rotor winding circuit in passive variable flux PM motor utilizing space harmonics

Kumai

Aoyama

2021

Electrical Engineering Japan

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This paper proposes a technique for applying LC resonance to a rectifier circuit of a self-excited wound-field rotor, which utilizes space harmonics for improving the variable flux function. The rotor magnetomotive force can be improved by setting the resonance frequency of the LC resonance circuit to a low speed rotation range. The adjustable speed drive characteristics and efficiency maps are demonstrated via a prototype.

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Section: Introductionmentioning

confidence: 99%

Experimental verification of power factor adjustor with rotor winding circuit in passive variable flux PM motor utilizing space harmonics

Kumai

Aoyama

2021

Electrical Engineering Japan

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Design and improvement of torque characteristics of half‐wave rectified variable field flux motor with axial gap structure

Yazama,

Abe,

Otomo

et al. 2024

Electrical Engineering Japan

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The axial gap structure of a half‐wave rectified variable field flux motor (AG‐HVFM) has been proposed, which has a double stator structure and field winding short‐circuited by a diode. Although the AG‐HVFM can achieve a high‐efficiency drive in wide speed and torque range via variable field flux control, its structure deteriorates the average torque and torque ripple. In this paper, we sequentially design the core shape, aspect ratio, and current control method for an AG‐HVFM to improve its torque characteristics.

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Experimental Verification of Power Factor Adjustor with Rotor Winding Circuit in Passive Variable Flux PM Motor Utilizing Space Harmonics

Kumai

Aoyama

2021

IEEJ Trans. IA

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Principle and Basic Characteristics of a Flux-Modulating Hybrid Field Motor

Cited by 7 publications

References 0 publications

Experimental verification of power factor adjustor with rotor winding circuit in passive variable flux PM motor utilizing space harmonics

Experimental verification of power factor adjustor with rotor winding circuit in passive variable flux PM motor utilizing space harmonics

Design and improvement of torque characteristics of half‐wave rectified variable field flux motor with axial gap structure

Experimental Verification of Power Factor Adjustor with Rotor Winding Circuit in Passive Variable Flux PM Motor Utilizing Space Harmonics

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