Development of Remote Sensing System using Electromagnetic Waves for Insulation Diagnosis of Electric Power Apparatus and Facilities

Jazyk: japonština
Rok vydání: 2006
Předmět:
Zdroj: 徳島大学工学部研究報告. 51
ISSN: 0371-5949
Popis: Partial discharge (PD) is a symptom of the insulation degradation of the electric power apparatus and facilities. In this study a new method was developed for finding the direction of arrival (DOA) of the electromagnetic waves emitted from PD using Bayesian Network. The time delay between two antennas computed from digital data generally has error because of the effect of sampling time. Therefore the angle of arrival estimated from the time delay also has the estimation error. The probabilistic method of reasoning with uncertain information was investigated. This method provides the probabilities of each angle based on Bayes’ Theorem. The proposed method is able to estimate the angle of arrival of the electromagnetic waves.
Databáze: OpenAIRE