Ultrasonic localization of partial discharge in power transformer based on improved genetic algorithm

Author

Ren, Shuangzan ; Yang, Xu ; Zhu, Ruihua ; Xi, Baofeng ; Man, Xu ; Cao, Xiaolong

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xian Jiaotong Univ., Xian

fYear

2008

fDate

7-11 Sept. 2008

Firstpage

323

Lastpage

325

Abstract

Partial discharge (PD) is one of the main reasons for insulation degradation of power transformer, ultrasonic method has attracted great attention for its anti-interference ability and convenience of location for partial discharge measuring, based on an improved genetic algorithm, an ultrasonic-ultrasonic locating method which takes the equivalent velocity of ultrasonic as a variable is introduced in this paper. Besides, a gap discharge and a surface discharge model is designed, by comparing the measuring data of electric PD detection and ultrasonic measurement for them, the relationship between ultrasonic intensity and apparent discharge magnitude is also discussed.

Keywords

genetic algorithms; partial discharge measurement; power transformer insulation; surface discharges; ultrasonic measurement; antiinterference ability; apparent discharge magnitude; gap discharge model; genetic algorithm; insulation degradation; partial discharge; power transformer; surface discharge model; ultrasonic intensity; ultrasonic localization; Degradation; Electric variables measurement; Fault location; Genetic algorithms; Partial discharge measurement; Partial discharges; Power measurement; Power transformer insulation; Power transformers; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2008. (ISEIM 2008). International Symposium on

Conference_Location

Mie

Print_ISBN

978-4-88686-005-7

Electronic_ISBN

978-4-88686-006-4

Type

conf

DOI

10.1109/ISEIM.2008.4664563

Filename

4664563