A Novel Method for Separating and Locating Multiple Partial Discharge Sources in a Substation
AbstractTo separate and locate multi-partial discharge (PD) sources in a substation, the use of spectrum differences of ultra-high frequency signals radiated from various sources as characteristic parameters has been previously reported. However, the separation success rate was poor when signal-to-noise ratio was low, and the localization result was a coordinate on two-dimensional plane. In this paper, a novel method is proposed to improve the separation rate and the localization accuracy. A directional measuring platform is built using two directional antennas. The time delay (TD) of the signals captured by the antennas is calculated, and TD sequences are obtained by rotating the platform at different angles. The sequences are separated with the TD distribution feature, and the directions of the multi-PD sources are calculated. The PD sources are located by directions using the error probability method. To verify the method, a simulated model with three PD sources was established by XFdtd. Simulation results show that the separation rate is increased from 71% to 95% compared with the previous method, and an accurate three-dimensional localization result was obtained. A field test with two PD sources was carried out, and the sources were separated and located accurately by the proposed method. View Full-Text
Externally hosted supplementary file 1
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Li, P.; Zhou, W.; Yang, S.; Liu, Y.; Tian, Y.; Wang, Y. A Novel Method for Separating and Locating Multiple Partial Discharge Sources in a Substation. Sensors 2017, 17, 247.
Li P, Zhou W, Yang S, Liu Y, Tian Y, Wang Y. A Novel Method for Separating and Locating Multiple Partial Discharge Sources in a Substation. Sensors. 2017; 17(2):247.Chicago/Turabian Style
Li, Pengfei; Zhou, Wenjun; Yang, Shuai; Liu, Yushun; Tian, Yan; Wang, Yong. 2017. "A Novel Method for Separating and Locating Multiple Partial Discharge Sources in a Substation." Sensors 17, no. 2: 247.