NDLI: Electromagnetic force density calculation in surface-mounted PM synchronous machine with rotor eccentricity by an equivalent transformation method

Content Provider	IET Digital Library
Author	Ren, Jie Wang, Xiuhe Zhao, Wenliang Peng, Bo
Abstract	An equivalent transformation method is proposed to calculate the electromagnetic force density of surface-mounted permanent magnet (PM) synchronous machine with static and dynamic eccentricities. It hypothetically transforms the original, eccentric machine into a concentric one with redistributed PM remanence and current density according to equivalent transformation principle. On the basis of the magnetic field of the concentric machine obtained by the subdomain method, the air-gap flux density of the eccentric machine is then achieved. Finally, the electromagnetic force density is predicted by the air-gap field based on Maxwell stress tensor method and analysed by the two-dimensional Fourier transform. The effectiveness of this method is verified on both static and dynamic eccentricities conditions by the finite-element method and experiment.
Starting Page	192
Ending Page	203
Page Count	12
ISSN	17518660
Volume Number	14
e-ISSN	17518679
Issue Number	Issue 2, Feb (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/14/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2019.0415
Journal	IET Electric Power Applications
Publisher Date	2019-10-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.C. Machine Air Gap Air-gap Field Air-gap Flux Density Concentric Machine Current Density Dynamic Eccentricities Condition Eccentric Machine Electromagnetic Force Density Calculation Electromagnetic Forces Equivalent Transformation Method Equivalent Transformation Principle Finite Element Analysis Finite Element Method Fourier Transforms Machine Theory Magnetic Field Maxwell Equation Maxwell Stress Tensor Method Numerical Analysis Original Machine Rotor Eccentricity Rotors Static Eccentricities Condition Subdomain Method Surface-mounted Permanent Magnet Synchronous Machine Surface-mounted PM Synchronous Machine Synchronous Machine Tensors
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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