NDLI: Influence of asymmetrical stator axes on the electromagnetic field and driving characteristics of canned induction motor

Content Provider	IET Digital Library
Author	Yuejun, An Zhiheng, Zhang Ming, Li Guangyu, Wang Xiangling, Kong Zaihang, Liu
Abstract	Canned induction motors (CIMs) are particularly important for high vacuum application due to its low cost, simple design, and mechanically robust. Herein, this study reveals a mechanism of asymmetrical stator axes (ASAs) for CIMs and proposes six coefficients to describe ASA for CIMs under asymmetrical stator phase's windings. Using winding theorem, this study derived the electromagnetic field and driving characteristics in the healthy condition and ASA conditions for a 1.9 kW CIM, and analysed further using mathematical formulas and finite-element models. Both simulation and experimental results show good agreement, and significant variation was found in total harmonic distortion, the amplitude of air-gap flux density, and driving characteristics of CIMs. Further, investigation of back-electromotive force and stator current showed their efficacy as a diagnosis signature to detect the fault of ASA in CIMs. The obtained conclusions can serve as a valuable reference to design a high-performing CIMs control system.
Starting Page	1229
Ending Page	1239
Page Count	11
ISSN	17518660
Volume Number	13
e-ISSN	17518679
Issue Number	Issue 8, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/13/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2019.0060
Journal	IET Electric Power Applications
Publisher Date	2019-06-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Air Gap Air-gap Flux Density ASA Condition Asymmetrical Stator Axes Asymmetrical Stator Phase Asynchronous Machine Back-electromotive Force Canned Induction Motor CIM Control System Control of Electric Power System Drive Driving Characteristic Electric Potential Electromagnetic Field Electrostatics Finite Element Analysis Finite-element Model Harmonic Distortion Healthy Condition High Vacuum Application Induction Motor Drive Machine Control Magnetic Flux Power 1.9 KW Stator Current Stators Total Harmonic Distortion Winding Theorem
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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