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Measurement of induction motor speed from induced slip frequency signal Cai, Ji-Yuan
Abstract
A method to detect the slip of a three-phase or single-phase induction motor and hence determine the motor speed is proposed. A pick-up coil is placed in close proximity to the motor and by suitable amplification and filtering of the weak slip frequency signal, the slip frequency signal component is isolated for the speed measurement. No device needs to be attached to the motor shaft. Experimental results from four test induction motors show that the proposed method of speed measurement is fully feasible and applies to normal loads, i.e., for slip less than 13% with considerable accuracy. Therefore, even the speed of sealed induction motor such as those used in refrigerators can be easily measured.
Item Metadata
Title |
Measurement of induction motor speed from induced slip frequency signal
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1985
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Description |
A method to detect the slip of a three-phase or single-phase induction motor and hence determine the motor speed is proposed. A pick-up coil is placed in close proximity to the motor and by suitable amplification and filtering of the weak slip frequency signal, the slip frequency signal component is isolated for the speed measurement. No device needs to be attached to the motor shaft.
Experimental results from four test induction motors show that the proposed method of speed measurement is fully feasible and applies to normal loads, i.e., for slip less than 13% with considerable accuracy. Therefore, even the speed of sealed induction motor such as those used in refrigerators can be easily measured.
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-07-08
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0065063
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.