Title :
Location of multiple partial discharge sources using MAP estimation for consecutive pulses
Author :
Ishimaru, Hirokazu ; Kawada, Masatake
Author_Institution :
Nagoya Inst. of Technol., Nagoya, Japan
Abstract :
This paper presents a locating method for multiple partial discharge (PD) sources based on the maximum a posteriori estimation. The feature of this method lies in monitoring an entire substation. The sensors installed in the monitoring area such as the substation receive PD signals and estimate the direction of arrival angles. Then integrating all the estimated angles provides source positions. The capability of the proposed system was confirmed by numerical simulations. The results include the comparison of performance for the number of sensors.
Keywords :
direction-of-arrival estimation; maximum likelihood estimation; partial discharges; substations; MAP estimation; PD signals; consecutive pulses; direction of arrival; maximum a posteriori estimation; multiple partial discharge sources; substation; Arrays; Direction-of-arrival estimation; Finite difference methods; Monitoring; Partial discharges; Sensors; Substations; location; maximum a posteriori estimation; partial discharge; radio sensing;
Conference_Titel :
Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-4-88686-074-3
DOI :
10.1109/ISEIM.2011.6826378
