Contemporary approach to determination of magnetic induction in wind generator air gap

On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components: rotor (stator) pulsation iron losses, and rotor (stator) surface iron losses. No-load rotor cage (high-frequency) stray losses are usually calculated. No-load stray losses are caused by the existence of space harmonics: the air-gap slot permeance harmonics and the harmonics produced by no-load MMF harmonics. The second result is the proof that the corresponding components of stray losses can be calculated separately for the mentioned kind of harmonics. Determination of the depth of flux penetration and calculations of high frequency iron losses are improved. On the basis of experimental validation, it is proved that the new classification of no-load stray losses and the proposed method for the calculation of the total value is sufficiently accurate.

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Validation of a novel 3D scanning method for determination of the air gap in clothing

Measurement ◽

10.1016/j.measurement.2015.02.024 ◽

2015 ◽

Vol 67 ◽

pp. 61-70 ◽

Cited By ~ 21

Author(s):

Agnes Psikuta ◽

Joanna Frackiewicz-Kaczmarek ◽

Emel Mert ◽

Marie-Ange Bueno ◽

Renè M. Rossi

Keyword(s):

3D Scanning ◽

Air Gap ◽

Scanning Method

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Air-Gap Magnetic Field Analysis of Wind Generator With PM Embedded Salient Poles by Analytical and Finite Element Combination Technique

IEEE Transactions on Magnetics ◽

10.1109/tmag.2013.2281659 ◽

2014 ◽

Vol 50 (2) ◽

pp. 777-780 ◽

Cited By ~ 1

Author(s):

Yujing Guo ◽

Heyun Lin ◽

Yunkai Huang ◽

Shuhua Fang ◽

Hui Yang ◽

...

Keyword(s):

Magnetic Field ◽

Finite Element ◽

Air Gap ◽

Field Analysis ◽

Combination Technique ◽

Wind Generator ◽

Magnetic Field Analysis ◽

Air Gap Magnetic Field

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Determination of Air-Gap Flux Density Characteristics of Switched Reluctance Machines With Conductor Layout and Slotting Effect

IEEE Transactions on Magnetics ◽

10.1109/tmag.2016.2553649 ◽

2016 ◽

Vol 52 (8) ◽

pp. 1-7 ◽

Cited By ~ 2

Author(s):

Qiang Yu ◽

Xuesong Wang ◽

Yuhu Cheng

Keyword(s):

Flux Density ◽

Air Gap ◽

Switched Reluctance ◽

Switched Reluctance Machines

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Determination of an Optimum Fictitious Air Gap and Rotor Disk Thickness for a Coreless AFPMM

Tehnicki vjesnik - Technical Gazette ◽

10.17559/tv-20171109105213 ◽

2018 ◽

Vol 25 (6) ◽

Cited By ~ 1

Keyword(s):

Air Gap ◽

Disk Thickness ◽

Rotor Disk

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Dielectric Measurement Of Multi-Layered Medium Using An Open-Ended Waveguide

MRS Proceedings ◽

10.1557/proc-430-245 ◽

1996 ◽

Vol 430 ◽

Cited By ~ 1

Author(s):

O. Tantot ◽

M. Chatard-Moulin ◽

P. Guillon

Keyword(s):

Reflection Coefficient ◽

Complex Permittivity ◽

Layered Medium ◽

Circular Waveguide ◽

Air Gap ◽

Dielectric Measurement ◽

Microwave Measurement ◽

Measurement Devices

AbstractThe use of a circular waveguide radiating into a multi-layered media allows the characterization of heterogeneous and fluid subtances. Many microwave measurement devices, based on reflection coefficient measurements, are subjected to air gap problems that introduce some inaccuracy in the determination of the unknown complex permittivity of the materials. Our purpose is to try and take the air gap into account in these measurements.

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The Results of Experimental Determination of Air Output and Velocity of Flow in Double Skin Facades

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.725-726.93 ◽

2015 ◽

Vol 725-726 ◽

pp. 93-99 ◽

Cited By ~ 4

Author(s):

Mikhail Petrichenko ◽

Nikolai Vatin ◽

Darya Nemova ◽

Vyacheslav Olshevskiy

Keyword(s):

Experimental Determination ◽

Average Velocity ◽

Air Flow ◽

Air Gap ◽

Double Skin ◽

Double Skin Facades ◽

New Buildings

Double skin facades very popular in this time. They are applied for construction of new buildings and for reconstruction. This paper to try to consider the main problems which appear during the work with the double skin facades. In paper are presented dependence of average velocity of air flow as functions from the geometrical sizes of the ventilated air gap of double skin facades and air output as functions from the geometrical sizes of air gap. This dependences are received experimentally. The received dependences can be used at design of double skin facades for the purpose of obtaining the optimum sizes of an air gap.

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Air-gap determination of the cut-off frequency of unelectroded plates and effects of local thickness modifications in plane resonators

10.1109/freq.1989.68928 ◽

2003 ◽

Cited By ~ 8

Author(s):

J. Detaint ◽

H. Carru ◽

J. Schwartzel ◽

C. Joly ◽

B. Capelle ◽

...

Keyword(s):

Air Gap

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A METHOD FOR THE DETERMINATION OF THE INDEX OF REFRACTION OF THIN TRANSPARENT FILMS

Canadian Journal of Research ◽

10.1139/cjr48a-020 ◽

1948 ◽

Vol 26a (4) ◽

pp. 230-235 ◽

Cited By ~ 1

Author(s):

R. W. Stewart

Keyword(s):

Thin Films ◽

High Frequency ◽

Air Gap ◽

Index Of Refraction ◽

Transparent Films ◽

High Frequency Discharge ◽

Discharge Tubes ◽

Set Up ◽

Fringe System

The index of refraction of thin films deposited on an optical flat is obtained by comparison of the fringe system set up in the film with that in the air gap between the film and another optical flat. The use of the method is illustrated by application to films produced in high frequency discharge tubes. Films produced in Pyrex glass and quartz tubes are shown to be silica in the form of cristobalite. Films produced in polystyrene tubes prove to have an index of refraction that is very low and is a function of the thickness.

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