Details
| Translated title of the contribution | Furan concentrations vs. fuzzy logic: A new proposal for the estimation of the DP value of power transformers |
|---|---|
| Original language | German |
| Title of host publication | VDE Hochspannungstechnik |
| Publisher | VDE Verlag GmbH |
| Pages | 406-411 |
| Number of pages | 6 |
| ISBN (electronic) | 978-3-8007-5355-0 |
| ISBN (print) | 978-3-8007-5353-6 |
| Publication status | Published - 2020 |
| Event | VDE High Voltage Technology 2020 - Virtual, Online, Germany Duration: 9 Nov 2020 → 11 Nov 2020 |
Publication series
| Name | ETG-Fachberichte |
|---|---|
| Volume | 162 |
Abstract
Transformers belong to the most valuable equipment in the electrical power supply. It is therefore of elementary interest for operators of transformers to estimate the remaining service life of this equipment. The average degree of polymerisation (DP value) is taken as an indicator of ageing, which is a measure of the average remaining chain length of the cellulose molecules. This value can be determined from a paper sample by chemical analysis. Unfortunately, it is almost impossible to obtain such a paper sample during operation or during short shutdowns, as this requires intervention in the transformer's insulation system. Therefore the development of methods to draw conclusions about the quality of the solid component on the basis of easily accessible oil parameters is subject of scientific discussion. An established method is the estimation of the DP-value on the basis of the furan concentrations in the insulating liquid by means of equilibrium curves. However, investigations show that these estimates of the DP value based on the furan concentrations in real transformers often do not indicate the true state. However, since the ageing of the equipment is also accompanied by the deterioration of other parameters such as oil and gas parameters, this paper will discuss the potential of interpreting these physically independent parameters to provide a condition statement using special developed fuzzy logic algorithms.
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
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VDE Hochspannungstechnik. VDE Verlag GmbH, 2020. p. 406-411 (ETG-Fachberichte; Vol. 162).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research
}
TY - GEN
T1 - Furankonzentrationen vs. Fuzzy-Logik: Ein neuer Vorschlag zu Abschätzung des DP-Wertes von Leistungstransformatoren
AU - Kinkeldey, Tobias
AU - Schreiter, Sebastian
AU - Lohmeyer, Holger
AU - Werle, Peter
AU - Münster, Tobias
AU - Hämel, K.
AU - Preusel, J.
PY - 2020
Y1 - 2020
N2 - Transformers belong to the most valuable equipment in the electrical power supply. It is therefore of elementary interest for operators of transformers to estimate the remaining service life of this equipment. The average degree of polymerisation (DP value) is taken as an indicator of ageing, which is a measure of the average remaining chain length of the cellulose molecules. This value can be determined from a paper sample by chemical analysis. Unfortunately, it is almost impossible to obtain such a paper sample during operation or during short shutdowns, as this requires intervention in the transformer's insulation system. Therefore the development of methods to draw conclusions about the quality of the solid component on the basis of easily accessible oil parameters is subject of scientific discussion. An established method is the estimation of the DP-value on the basis of the furan concentrations in the insulating liquid by means of equilibrium curves. However, investigations show that these estimates of the DP value based on the furan concentrations in real transformers often do not indicate the true state. However, since the ageing of the equipment is also accompanied by the deterioration of other parameters such as oil and gas parameters, this paper will discuss the potential of interpreting these physically independent parameters to provide a condition statement using special developed fuzzy logic algorithms.
AB - Transformers belong to the most valuable equipment in the electrical power supply. It is therefore of elementary interest for operators of transformers to estimate the remaining service life of this equipment. The average degree of polymerisation (DP value) is taken as an indicator of ageing, which is a measure of the average remaining chain length of the cellulose molecules. This value can be determined from a paper sample by chemical analysis. Unfortunately, it is almost impossible to obtain such a paper sample during operation or during short shutdowns, as this requires intervention in the transformer's insulation system. Therefore the development of methods to draw conclusions about the quality of the solid component on the basis of easily accessible oil parameters is subject of scientific discussion. An established method is the estimation of the DP-value on the basis of the furan concentrations in the insulating liquid by means of equilibrium curves. However, investigations show that these estimates of the DP value based on the furan concentrations in real transformers often do not indicate the true state. However, since the ageing of the equipment is also accompanied by the deterioration of other parameters such as oil and gas parameters, this paper will discuss the potential of interpreting these physically independent parameters to provide a condition statement using special developed fuzzy logic algorithms.
UR - http://www.scopus.com/inward/record.url?scp=85101692554&partnerID=8YFLogxK
M3 - Aufsatz in Konferenzband
SN - 978-3-8007-5353-6
T3 - ETG-Fachberichte
SP - 406
EP - 411
BT - VDE Hochspannungstechnik
PB - VDE Verlag GmbH
T2 - VDE High Voltage Technology 2020
Y2 - 9 November 2020 through 11 November 2020
ER -