Journal ArticleDOI
The hysteresis motor-advances whick permit economical fractional horsepower ratings
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TLDR
In this paper, the theory of the development of torque in a hysteresis motor is analyzed from both the hystresis lag angle and total loop energy points of view.Abstract:
The theory of the development of torque in a hysteresis motor is analyzed from both the hysteresis lag angle and total loop energy points of view. A new development, comprising the use of a closed slot stator in co-operation with a hysteresis rotor, which permits building hysteresis motors of high power output at high efficiency is explained qualitatively and supplemented by considerable quantitative experimental data. A new method of stator construction, permitting the use of closed slot stator laminations assembled on a mandrel with non-magnetic bearing supporting spiders, wound externally in either a d-c type of armature winding machine or with form-wound coils, impregnated with a thermosetting resin and baked to form a unitary structure, is described. The electrical design of the machine is covered and quantitative data on both design details and operating characteristics are given on several models.read more
Citations
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Journal ArticleDOI
Analytical Models for Polyphase Hysteresis Motor
TL;DR: In this paper, the terminal quantities of a polyphase hysteresis machine are derived for both the synchronous and sub-synchronous modes of operation, and a comprehensive analysis of rotor parasitic loss components and stator saturation effects is made.
Patent
Homopolar, Flux-Biased Hysteresis Bearingless Motor
Minkyun Noh,David L. Trumper +1 more
TL;DR: In this article, a bearingless slice motor was proposed based upon a homopolar flux-biased magnetic bearing for force generation and a hysteresis motor for torque generation.
Journal ArticleDOI
Analysis, Design and Optimization of Hysteresis Clutches
TL;DR: In this article, the analysis, design and optimization of hysteresis clutches are discussed, where the effect of the high level of anisotropy of the most common magnetic materials showing the highest energy density is carefully taken into account allowing to deduce the optimal preferred direction of magnetization.
Journal ArticleDOI
Performance of hysteresis motor after short‐duration overexcitation (underexcitation) and its analysis
Genjiro Wakui,Shigeru Nishino +1 more
Journal ArticleDOI
An Experimental Comparison of Disc-Type Hysteresis Motors With Slotless Magnetic Stator Core
TL;DR: This paper comparatively examines the operational characteristics of several disc-type hysteresis motors with slotless stators, and recommends a suitable motor for each application based on four key criteria.
References
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Journal ArticleDOI
Theory of hysteresis-motor torque
TL;DR: In this article, the authors developed a quantitative theory of hysteresis-motor torque, especially in relation to magnetic properties and dimensions, interpreted physically in an idealized case, and applied to a particular motor to verify the result experimentally.