Research on PD Number Estimation in Oil Based on Ultrasonic Array Sensors and Modified CCT

Author

Xie Qing ; Li Ningyuan ; Huang Huaping ; Li Yanqing ; Lu Fangcheng ; Xiang Xin

Author_Institution

Dept. of Electr. Eng., North China Electr. Power Univ. Baoding, Baoding, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

3

Abstract

A new partial discharge (PD) number estimation method in oil is presented based on ultrasonic array sensors and modified CCT in this paper. Firstly, ultrasonic array sensors are developed which can receive and format the wideband array ultrasonic signal of PD. Secondly, sub-band averaging and CCT are applied to realize PD number estimation in Oil. Lastly, the results of experimental research indicate that the method is effective. When the source numbers are 1, 2, 3 respectively, the estimated probability of success are 90%, 83% and 72%.

Keywords

oils; partial discharges; sensor arrays; ultrasonic arrays; experimental research; modified CCT; oil PD number estimation method; partial discharge number estimation method; source numbers; sub-band averaging; success probability; ultrasonic array sensors; wideband array ultrasonic signal; Frequency; Narrowband; Partial discharges; Petroleum; Power transformer insulation; Power transformers; Sensor arrays; Sensor systems; Ultra wideband technology; Ultrasonic transducer arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5448933

Filename

5448933