Windings Temperature and Loss of Life of an Induction Machine Under Voltage Unbalance Combined With Over- or Undervoltages

This paper deals with the effect of simultaneous voltage unbalance and over- or undervoltage on windings temperature and thermal loss of life of an induction cage machine. The presented results of investigations are based on the experiment and thermal modeling. The influence of an angle of the compl...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 2008-06, Vol.23 (2), p.363-371
Main Author: Gnacinski, Piotr
Format: Article
Language:English
Subjects:
Circuits
Coils (windings)
Complex voltage unbalance factor (CVUF)
Deviation
Electric potential
Heating
Impedance
Induction machines
induction motor
Induction motors
Machine windings
Magnetic circuits
Magnetic induction
Overvoltage
Power systems
Power transmission lines
Temperature
Unbalance
Voltage
Voltage control
voltage unbalance
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Summary:This paper deals with the effect of simultaneous voltage unbalance and over- or undervoltage on windings temperature and thermal loss of life of an induction cage machine. The presented results of investigations are based on the experiment and thermal modeling. The influence of an angle of the complex voltage unbalance factor (CVUF) on machine heating is considered. The effect of synergy of voltage unbalance and voltage rms value deviation is presented. Two induction machines of different properties are compared. One of them has a comparatively weakly saturated magnetic circuit, and the other a comparatively strongly saturated circuit. The former is especially exposed to overheating in the conditions of undervoltage, and the latter in the conditions of overvoltage.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2008.918596