Title :
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
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;
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
DOI :
10.1109/ISEIM.2008.4664563
