Abstract
| Language | English |
|---|---|
| Pages | 309-312 |
| Number of pages | 4 |
| Journal | IEE Proceedings Generation Transmission and Distribution |
| Volume | 152 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2005 |
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Keywords
- condition monitoring
- power engineering computing
- power apparatus
- harmonic distortion
- digital simulation
- dielectric loss measurement
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Definition and digital algorithms of dielectric loss factor for condition monitoring of high-voltage power equipment with harmonics emphasis. / Siew, W.H.; Li, Q.; Zhao, T.
In: IEE Proceedings Generation Transmission and Distribution, Vol. 152, No. 3, 2005, p. 309-312.Research output: Contribution to journal › Article
TY - JOUR
T1 - Definition and digital algorithms of dielectric loss factor for condition monitoring of high-voltage power equipment with harmonics emphasis
AU - Siew, W.H.
AU - Li, Q.
AU - Zhao, T.
PY - 2005
Y1 - 2005
N2 - Experience and applications of currently available methods for online monitoring and diagnostics of high-voltage power apparatus are briefly reviewed. Based on dielectric physics, a new definition of dielectric loss factor with harmonics emphasis is proposed to evaluate the operational conditions of power apparatus on a more reasonable basis, along with corresponding digitised algorithms. Two approaches, namely the decoupling algorithm and the approximating algorithm, are presented to implement the methodologies with the new definition of dielectric loss factor. The impact of background noise and power-frequency fluctuation on estimation accuracy are analysed by computer simulations, showing better application qualities of the approximating algorithm than the decoupling algorithm. A comprehensive strategy of simultaneous monitoring of sum current, dielectric loss factor, resistive current and capacitive current is recommended to give an effective assessment and diagnosis.
AB - Experience and applications of currently available methods for online monitoring and diagnostics of high-voltage power apparatus are briefly reviewed. Based on dielectric physics, a new definition of dielectric loss factor with harmonics emphasis is proposed to evaluate the operational conditions of power apparatus on a more reasonable basis, along with corresponding digitised algorithms. Two approaches, namely the decoupling algorithm and the approximating algorithm, are presented to implement the methodologies with the new definition of dielectric loss factor. The impact of background noise and power-frequency fluctuation on estimation accuracy are analysed by computer simulations, showing better application qualities of the approximating algorithm than the decoupling algorithm. A comprehensive strategy of simultaneous monitoring of sum current, dielectric loss factor, resistive current and capacitive current is recommended to give an effective assessment and diagnosis.
KW - condition monitoring
KW - power engineering computing
KW - power apparatus
KW - harmonic distortion
KW - digital simulation
KW - dielectric loss measurement
UR - http://dx.doi.org/10.1049/ip-gtd:20045043
U2 - 10.1049/ip-gtd:20045043
DO - 10.1049/ip-gtd:20045043
M3 - Article
VL - 152
SP - 309
EP - 312
JO - IEE Proceedings Generation Transmission and Distribution
T2 - IEE Proceedings Generation Transmission and Distribution
JF - IEE Proceedings Generation Transmission and Distribution
SN - 1350-2360
IS - 3
ER -