An evaluation of model-based stator resistance estimation for induction motor stator winding temperature monitoring

Sang Bin Lee; Thomas G. Habetler; Ronald G. Harley; David J. Gritter

An evaluation of model-based stator resistance estimation for induction motor stator winding temperature monitoring

Sang Bin Lee, Thomas G. Habetler, Ronald G. Harley, David J. Gritter

School of Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

In this paper, the feasibility of using an estimate of the stator resistance (R_s) as an indicator of stator winding temperature (T_s) is evaluated. The advantages of resistance-based temperature monitoring over conventional thermal model-based methods are presented. Since obtaining an accurate estimate of R_s is critical for this approach, an investigation of existing R_s estimation schemes, and an analysis showing the sensitivity of model-based R_s estimation due to the uncertainties in motor parameters and variables, are given. It is shown that R_s estimation is difficult during high-speed operation, because estimated R_s becomes sensitive to errors in motor electrical parameters and variables, as the input excitation frequency (speed) increases. A new R_s estimation scheme for the purpose of monitoring the temperature in steady state is proposed. Experimental results on a line-connected induction machine verify the validity of the proposed method and the analysis.

Original language	English
Number of pages	1
Publication status	Published - 2002
Event	2002 IEEE Power Engineering Society Winter Meeting - New York, NY, United States Duration: 2002 Jan 27 → 2002 Jan 31

Other

Other	2002 IEEE Power Engineering Society Winter Meeting
Country/Territory	United States
City	New York, NY
Period	02/1/27 → 02/1/31

ASJC Scopus subject areas

Electrical and Electronic Engineering

Cite this

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title = "An evaluation of model-based stator resistance estimation for induction motor stator winding temperature monitoring",

abstract = "In this paper, the feasibility of using an estimate of the stator resistance (Rs) as an indicator of stator winding temperature (Ts) is evaluated. The advantages of resistance-based temperature monitoring over conventional thermal model-based methods are presented. Since obtaining an accurate estimate of Rs is critical for this approach, an investigation of existing Rs estimation schemes, and an analysis showing the sensitivity of model-based Rs estimation due to the uncertainties in motor parameters and variables, are given. It is shown that Rs estimation is difficult during high-speed operation, because estimated Rs becomes sensitive to errors in motor electrical parameters and variables, as the input excitation frequency (speed) increases. A new Rs estimation scheme for the purpose of monitoring the temperature in steady state is proposed. Experimental results on a line-connected induction machine verify the validity of the proposed method and the analysis.",

author = "Lee, {Sang Bin} and Habetler, {Thomas G.} and Harley, {Ronald G.} and Gritter, {David J.}",

year = "2002",

language = "English",

note = "2002 IEEE Power Engineering Society Winter Meeting ; Conference date: 27-01-2002 Through 31-01-2002",

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TY - CONF

T1 - An evaluation of model-based stator resistance estimation for induction motor stator winding temperature monitoring

AU - Lee, Sang Bin

AU - Habetler, Thomas G.

AU - Harley, Ronald G.

AU - Gritter, David J.

PY - 2002

Y1 - 2002

N2 - In this paper, the feasibility of using an estimate of the stator resistance (Rs) as an indicator of stator winding temperature (Ts) is evaluated. The advantages of resistance-based temperature monitoring over conventional thermal model-based methods are presented. Since obtaining an accurate estimate of Rs is critical for this approach, an investigation of existing Rs estimation schemes, and an analysis showing the sensitivity of model-based Rs estimation due to the uncertainties in motor parameters and variables, are given. It is shown that Rs estimation is difficult during high-speed operation, because estimated Rs becomes sensitive to errors in motor electrical parameters and variables, as the input excitation frequency (speed) increases. A new Rs estimation scheme for the purpose of monitoring the temperature in steady state is proposed. Experimental results on a line-connected induction machine verify the validity of the proposed method and the analysis.

AB - In this paper, the feasibility of using an estimate of the stator resistance (Rs) as an indicator of stator winding temperature (Ts) is evaluated. The advantages of resistance-based temperature monitoring over conventional thermal model-based methods are presented. Since obtaining an accurate estimate of Rs is critical for this approach, an investigation of existing Rs estimation schemes, and an analysis showing the sensitivity of model-based Rs estimation due to the uncertainties in motor parameters and variables, are given. It is shown that Rs estimation is difficult during high-speed operation, because estimated Rs becomes sensitive to errors in motor electrical parameters and variables, as the input excitation frequency (speed) increases. A new Rs estimation scheme for the purpose of monitoring the temperature in steady state is proposed. Experimental results on a line-connected induction machine verify the validity of the proposed method and the analysis.

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M3 - Paper

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T2 - 2002 IEEE Power Engineering Society Winter Meeting

Y2 - 27 January 2002 through 31 January 2002

ER -

An evaluation of model-based stator resistance estimation for induction motor stator winding temperature monitoring

Abstract

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