Abstract
Increased thermal and electrical stresses on the motor for inverter-fed machines has accelerated insulation degradation resulting in reduced insulation lifetime. This paper focuses on a new approach for monitoring the condition of the stator insulation for failure-prone inverter-fed machines. The main concept of the proposed technique is to apply a DC and/or variable frequency AC test voltage to the stator insulation using the inverter, to perform standard off-line insulation tests whenever the motor is not operating. Two approaches for testing the insulation with minimal modifications to the inverter circuit are proposed and verified experimentally. The results show that the proposed technique provides a simple low cost solution for detecting stator insulation degradation at an early stage for reliable operation of inverter-fed machine systems, since the insulation condition can be monitored frequently. This not only helps prevent forced outages and safety risks due to insulation breakdown, but also helps perform maintenance in an efficient manner since individual motor maintenance can be prioritized and scheduled based on its present condition.
| Original language | English |
|---|---|
| Title of host publication | Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) |
| Pages | 1562-1569 |
| Number of pages | 8 |
| Volume | 3 |
| DOIs | |
| Publication status | Published - 2006 Dec 1 |
| Event | 2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting - Tampa, FL, United States Duration: 2006 Oct 8 → 2006 Oct 12 |
Other
| Other | 2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting |
|---|---|
| Country | United States |
| City | Tampa, FL |
| Period | 06/10/8 → 06/10/12 |
Fingerprint
Keywords
- AC electric machines
- Capacitance test
- Condition monitoring
- Diagnostics
- Dissipation factor
- Insulation resistance
- Inverters
- Predictive maintenance
- Stator insulation
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
An advanced stator winding insulation quality assessment technique for inverter-fed machines. / Yang, Jinkyu; Cho, Jintae; Lee, Sang Bin; Yoo, Ji Yoon.
Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). Vol. 3 2006. p. 1562-1569 4025424.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - An advanced stator winding insulation quality assessment technique for inverter-fed machines
AU - Yang, Jinkyu
AU - Cho, Jintae
AU - Lee, Sang Bin
AU - Yoo, Ji Yoon
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Increased thermal and electrical stresses on the motor for inverter-fed machines has accelerated insulation degradation resulting in reduced insulation lifetime. This paper focuses on a new approach for monitoring the condition of the stator insulation for failure-prone inverter-fed machines. The main concept of the proposed technique is to apply a DC and/or variable frequency AC test voltage to the stator insulation using the inverter, to perform standard off-line insulation tests whenever the motor is not operating. Two approaches for testing the insulation with minimal modifications to the inverter circuit are proposed and verified experimentally. The results show that the proposed technique provides a simple low cost solution for detecting stator insulation degradation at an early stage for reliable operation of inverter-fed machine systems, since the insulation condition can be monitored frequently. This not only helps prevent forced outages and safety risks due to insulation breakdown, but also helps perform maintenance in an efficient manner since individual motor maintenance can be prioritized and scheduled based on its present condition.
AB - Increased thermal and electrical stresses on the motor for inverter-fed machines has accelerated insulation degradation resulting in reduced insulation lifetime. This paper focuses on a new approach for monitoring the condition of the stator insulation for failure-prone inverter-fed machines. The main concept of the proposed technique is to apply a DC and/or variable frequency AC test voltage to the stator insulation using the inverter, to perform standard off-line insulation tests whenever the motor is not operating. Two approaches for testing the insulation with minimal modifications to the inverter circuit are proposed and verified experimentally. The results show that the proposed technique provides a simple low cost solution for detecting stator insulation degradation at an early stage for reliable operation of inverter-fed machine systems, since the insulation condition can be monitored frequently. This not only helps prevent forced outages and safety risks due to insulation breakdown, but also helps perform maintenance in an efficient manner since individual motor maintenance can be prioritized and scheduled based on its present condition.
KW - AC electric machines
KW - Capacitance test
KW - Condition monitoring
KW - Diagnostics
KW - Dissipation factor
KW - Insulation resistance
KW - Inverters
KW - Predictive maintenance
KW - Stator insulation
UR - http://www.scopus.com/inward/record.url?scp=34948865167&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34948865167&partnerID=8YFLogxK
U2 - 10.1109/IAS.2006.256737
DO - 10.1109/IAS.2006.256737
M3 - Conference contribution
AN - SCOPUS:34948865167
SN - 1424403642
SN - 9781424403646
VL - 3
SP - 1562
EP - 1569
BT - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ER -