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PMSM diagnostics and prognostics - Evaluation of an on-line method based on high frequency current response

Björngreen, Julius LU (2016) In CODEN:LUTEDX/TEIE EIE920 20161
Industrial Electrical Engineering and Automation
Abstract
This thesis covers and evaluates a stator insulation fault detection method for Permanent Magnetised Synchronous Machines (PMSMs). The method could be implemented on-line and is based on using the power converter in an electric or hybrid vehicle to measure the State of Health (SoH) of the stator insulation of the PMSM. This is done through measurements of the high frequency current response that occurs when the PMSM is subjected to a voltage pulse from the power converter. The high frequency content of this current response is related to the parasitic capacitances of the PMSM and thereby also reflect the quality of the stator insulation. It is shown, in this thesis, that small impedance changes, corresponding to degradation and an early... (More)
This thesis covers and evaluates a stator insulation fault detection method for Permanent Magnetised Synchronous Machines (PMSMs). The method could be implemented on-line and is based on using the power converter in an electric or hybrid vehicle to measure the State of Health (SoH) of the stator insulation of the PMSM. This is done through measurements of the high frequency current response that occurs when the PMSM is subjected to a voltage pulse from the power converter. The high frequency content of this current response is related to the parasitic capacitances of the PMSM and thereby also reflect the quality of the stator insulation. It is shown, in this thesis, that small impedance changes, corresponding to degradation and an early developing fault, can be detected with high repeatability and accuracy. (Less)
Popular Abstract
Electrical vehicles are becoming more and more popular. But with new technology comes new challenges. One of those challenges is to guarantee that the electrical machine running the electrical or hybrid vehicle runs satisfactory without breaking. In the spirit of this a method to monitor the status of the quality of the electrical machine has been investigated.
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author
Björngreen, Julius LU
supervisor
organization
course
EIE920 20161
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
CODEN:LUTEDX/TEIE
report number
5373
language
English
id
8878824
date added to LUP
2016-06-27 13:34:07
date last changed
2016-06-27 13:34:07
@misc{8878824,
  abstract     = {This thesis covers and evaluates a stator insulation fault detection method for Permanent Magnetised Synchronous Machines (PMSMs). The method could be implemented on-line and is based on using the power converter in an electric or hybrid vehicle to measure the State of Health (SoH) of the stator insulation of the PMSM. This is done through measurements of the high frequency current response that occurs when the PMSM is subjected to a voltage pulse from the power converter. The high frequency content of this current response is related to the parasitic capacitances of the PMSM and thereby also reflect the quality of the stator insulation. It is shown, in this thesis, that small impedance changes, corresponding to degradation and an early developing fault, can be detected with high repeatability and accuracy.},
  author       = {Björngreen, Julius},
  language     = {eng},
  note         = {Student Paper},
  series       = {CODEN:LUTEDX/TEIE},
  title        = {PMSM diagnostics and prognostics - Evaluation of an on-line method based on high frequency current response},
  year         = {2016},
}