Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear

David G. Dorrell; Jonathan K.H. Shek; Markus A. Mueller; Min-Fu Hsieh

doi:10.1109/ECCE.2011.6063975

Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear

David G. Dorrell
, Jonathan K.H. Shek
, Markus A. Mueller
, Min-Fu Hsieh

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

In large induction machines (such as cage large induction motor pumps in the petro-chemical industry and cage or wound-rotor induction generators in wind turbines) reliability and longevity is advantageous. This is particularly relevant to wind turbine generators which can be inaccessible. There will be some degree of tolerance and wear that will lead to low-level rotor eccentricity. For a p_m-pole pair machine there will be p _m±1 pole pair flux waves set up by the eccentricity which will generate unbalanced magnetic pull (UMP), as well as additional higher space harmonics. This paper addresses the use of stator damper windings to reduce the side-band flux waves and hence attenuate the UMP. Examples are put forward in terms of a 10 pole cage-rotor machine with static or dynamic rotor eccentricity and then extended to use a 4 pole machine wound-rotor machine. A tested analytical model is developed to include these damper windings and the wound rotor; they are shown to reduce the UMP, particularly in a wound-rotor machine. The simulations here are in terms of a wound-rotor machine but this can be extended for DFIG operation.

Original language	English
Title of host publication	IEEE Energy Conversion Congress and Exposition
Subtitle of host publication	Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
Pages	1612-1619
Number of pages	8
DOIs	https://doi.org/10.1109/ECCE.2011.6063975
Publication status	Published - 2011 Nov 28
Event	3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011 - Phoenix, AZ, United States Duration: 2011 Sept 17 → 2011 Sept 22

Publication series

Name	IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings

Other

Other	3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011
Country/Territory	United States
City	Phoenix, AZ
Period	11-09-17 → 11-09-22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

Access to Document

10.1109/ECCE.2011.6063975

Cite this

Dorrell, D. G., Shek, J. K. H., Mueller, M. A., & Hsieh, M.-F. (2011). Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear. In IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings (pp. 1612-1619). Article 6063975 (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings). https://doi.org/10.1109/ECCE.2011.6063975

Dorrell, David G. ; Shek, Jonathan K.H. ; Mueller, Markus A. et al. / Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear. IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. 2011. pp. 1612-1619 (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings).

@inproceedings{f5e5fd3891664e79acfbdae5410fed88,

title = "Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear",

abstract = "In large induction machines (such as cage large induction motor pumps in the petro-chemical industry and cage or wound-rotor induction generators in wind turbines) reliability and longevity is advantageous. This is particularly relevant to wind turbine generators which can be inaccessible. There will be some degree of tolerance and wear that will lead to low-level rotor eccentricity. For a pm-pole pair machine there will be p m±1 pole pair flux waves set up by the eccentricity which will generate unbalanced magnetic pull (UMP), as well as additional higher space harmonics. This paper addresses the use of stator damper windings to reduce the side-band flux waves and hence attenuate the UMP. Examples are put forward in terms of a 10 pole cage-rotor machine with static or dynamic rotor eccentricity and then extended to use a 4 pole machine wound-rotor machine. A tested analytical model is developed to include these damper windings and the wound rotor; they are shown to reduce the UMP, particularly in a wound-rotor machine. The simulations here are in terms of a wound-rotor machine but this can be extended for DFIG operation.",

author = "Dorrell, \{David G.\} and Shek, \{Jonathan K.H.\} and Mueller, \{Markus A.\} and Min-Fu Hsieh",

year = "2011",

month = nov,

day = "28",

doi = "10.1109/ECCE.2011.6063975",

language = "English",

isbn = "9781457705427",

series = "IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings",

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note = "3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011 ; Conference date: 17-09-2011 Through 22-09-2011",

}

Dorrell, DG, Shek, JKH, Mueller, MA & Hsieh, M-F 2011, Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear. in IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings., 6063975, IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings, pp. 1612-1619, 3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011, Phoenix, AZ, United States, 11-09-17. https://doi.org/10.1109/ECCE.2011.6063975

Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear. / Dorrell, David G.; Shek, Jonathan K.H.; Mueller, Markus A. et al.
IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. 2011. p. 1612-1619 6063975 (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear

AU - Dorrell, David G.

AU - Shek, Jonathan K.H.

AU - Mueller, Markus A.

AU - Hsieh, Min-Fu

PY - 2011/11/28

Y1 - 2011/11/28

N2 - In large induction machines (such as cage large induction motor pumps in the petro-chemical industry and cage or wound-rotor induction generators in wind turbines) reliability and longevity is advantageous. This is particularly relevant to wind turbine generators which can be inaccessible. There will be some degree of tolerance and wear that will lead to low-level rotor eccentricity. For a pm-pole pair machine there will be p m±1 pole pair flux waves set up by the eccentricity which will generate unbalanced magnetic pull (UMP), as well as additional higher space harmonics. This paper addresses the use of stator damper windings to reduce the side-band flux waves and hence attenuate the UMP. Examples are put forward in terms of a 10 pole cage-rotor machine with static or dynamic rotor eccentricity and then extended to use a 4 pole machine wound-rotor machine. A tested analytical model is developed to include these damper windings and the wound rotor; they are shown to reduce the UMP, particularly in a wound-rotor machine. The simulations here are in terms of a wound-rotor machine but this can be extended for DFIG operation.

AB - In large induction machines (such as cage large induction motor pumps in the petro-chemical industry and cage or wound-rotor induction generators in wind turbines) reliability and longevity is advantageous. This is particularly relevant to wind turbine generators which can be inaccessible. There will be some degree of tolerance and wear that will lead to low-level rotor eccentricity. For a pm-pole pair machine there will be p m±1 pole pair flux waves set up by the eccentricity which will generate unbalanced magnetic pull (UMP), as well as additional higher space harmonics. This paper addresses the use of stator damper windings to reduce the side-band flux waves and hence attenuate the UMP. Examples are put forward in terms of a 10 pole cage-rotor machine with static or dynamic rotor eccentricity and then extended to use a 4 pole machine wound-rotor machine. A tested analytical model is developed to include these damper windings and the wound rotor; they are shown to reduce the UMP, particularly in a wound-rotor machine. The simulations here are in terms of a wound-rotor machine but this can be extended for DFIG operation.

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DO - 10.1109/ECCE.2011.6063975

M3 - Conference contribution

AN - SCOPUS:81855177178

SN - 9781457705427

T3 - IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings

SP - 1612

EP - 1619

BT - IEEE Energy Conversion Congress and Exposition

T2 - 3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011

Y2 - 17 September 2011 through 22 September 2011

ER -

Dorrell DG, Shek JKH, Mueller MA, Hsieh MF. Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear. In IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. 2011. p. 1612-1619. 6063975. (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings). doi: 10.1109/ECCE.2011.6063975

Damper windings in induction machines for reduction of unbalanced magnetic pull and bearing wear

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