نتایج جستجو برای: permanent magnet

تعداد نتایج: 74179  

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 2008

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Journal: :Applied Physics Letters 2007

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Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 2002

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2014
Marcin Baranski

This article presents a new vibration diagnostic method designed to (PM) machines with permanent magnets. Those devices are commonly used in small wind and water systems or vehicles drives. The author’s method is very innovative and unique. Specific structural properties of PM machines are used in this method electromotive force (EMF) generated due to vibrations. There was analysed number of pu...

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2014
P. Pistelok

The article presents the concept of an electromagnetic circuit generator with permanent magnets mounted on the surface rotor core designed for single phase work. Computation field-circuit model was shown. The spectrum of time course of voltages in the idle work was presented. The cross section with graphically presentation of magnetic induction in particular parts of electromagnetic circuits wa...

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2014
N. Yogal C. Lehrmann

The use of permanent magnets (PM) is increasing in permanent magnet synchronous machines (PMSM) to fulfill the requirements of high efficiency machines in modern industry. PMSM are widely used in industrial applications, wind power plants and the automotive industry. Since PMSM are used in different environmental conditions, the long-term effect of NdFeB-based magnets at high temperatures and t...

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Journal: :IEEJ Transactions on Industry Applications 2007

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Journal: :Engineering 2011

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2012
Liming Gong

ACKNOWLEDGEMENTS CONTENTS LIST OF SYMBOLS LIST OF ABBREVIATIONS CHAPTER 1 1 SENSORLESS CONTROL OF PERMANENT MAGNET BRUSHLESS AC MACHINES 1.

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2015
Yun Hyun Cho

This paper presents the design process of a high performance 3-phase 3.7 kW 2-pole line start permanent magnet synchronous motor for pumping system. A method was proposed to study the starting torque characteristics considering line start with high inertia load. A d-q model including cage was built to study the synchronization capability. Time-stepping finite element method analysis was utilize...

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