NDLI: Detection of Rotor Eccentricity in Wound Rotor Induction Machines Using Pole-Specific Search Coils

Content Provider	IEEE Xplore Digital Library
Author	Dorrell, D.G. Salah, A.
Copyright Year	1965
Abstract	This paper addresses the need to detect the rotor radial position in an electrical machine. When it is not centered, it is referred to as rotor eccentricity. Cage induction machines can use the detection of sideband currents, and this is studied extensively elsewhere. Wound rotor induction machines do not generate the same sidebands, so an alternative detection method is needed. These machines are now popular generators in wind turbines. A simple method using pole-specific search coils is introduced, and a theory is developed to illustrate that rotor eccentricity leads to the generation of air-gap flux waves with pole-pairs that are p_m ± 1. This is tested using search coils in a 4-pole wound rotor machine. The method is found to successfully indicate the presence of rotor eccentricity.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	966840
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rotors Windings Coils Stator windings Induction machines Condition monitoring condition monitoring Motors generators rotor eccentricity motors
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of rotor eccentricity and parallel windings on induction machine behavior: a study using finite element analysis

Winding Design, Modeling, and Control for Pole-Phase Modulation Induction Motors

Magnetically Geared Induction Machines

Linear Induction Motors with Modular Winding Primaries and Wound Rotor Secondaries

Effect of Rotor Eccentricity in Large Synchronous Machines

Optimal design of rotor circuits in induction type bearingless motors

Eccentricity Related Forces in Two-Pole Induction Motor With Four-Pole Stator Damper Winding Analyzed Using Measured Rotor Orbits

A Survey of Condition Monitoring and Protection Methods for Medium-Voltage Induction Motors

Detection of Airgap Eccentricity for Induction Motors Using the Single-Phase Rotation Test

Detection of Rotor Eccentricity in Wound Rotor Induction Machines Using Pole-Specific Search Coils

Similar Documents

Effects of rotor eccentricity and parallel windings on induction machine behavior: a study using finite element analysis

Winding Design, Modeling, and Control for Pole-Phase Modulation Induction Motors

Magnetically Geared Induction Machines

Linear Induction Motors with Modular Winding Primaries and Wound Rotor Secondaries

Effect of Rotor Eccentricity in Large Synchronous Machines

Optimal design of rotor circuits in induction type bearingless motors

Eccentricity Related Forces in Two-Pole Induction Motor With Four-Pole Stator Damper Winding Analyzed Using Measured Rotor Orbits

A Survey of Condition Monitoring and Protection Methods for Medium-Voltage Induction Motors

Detection of Airgap Eccentricity for Induction Motors Using the Single-Phase Rotation Test

Detection of Rotor Eccentricity in Wound Rotor Induction Machines Using Pole-Specific Search Coils