Dong, Ming and Yan, Zhang and Yang, Li and Judd, Martin D. (2005) Fault diagnosis model for power transformers based on information fusion. Measurement Science and Technology, 16 (1). pp. 1517-1524. ISSN 0957-0233Full text not available in this repository. (Request a copy from the Strathclyde author)
Methods used to assess the insulation status of power transformers before they deteriorate to a critical state include dissolved gas analysis (DGA), partial discharge (PD) detection and transfer function techniques, etc. All of these approaches require experience in order to correctly interpret the observations. Artificial intelligence (AI) is increasingly used to improve interpretation of the individual datasets. However, a satisfactory diagnosis may not be obtained if only one technique is used. For example, the exact location of PD cannot be predicted if only DGA is performed. However, using diverse methods may result in different diagnosis solutions, a problem that is addressed in this paper through the introduction of a fuzzy information infusion model. An inference scheme is proposed that yields consistent conclusions and manages the inherent uncertainty in the various methods. With the aid of information fusion, a framework is established that allows different diagnostic tools to be combined in a systematic way. The application of information fusion technique for insulation diagnostics of transformers is proved promising by means of examples.
|Keywords:||condition monitoring, DGA, information fusion, insulation diagnostics, power transformers, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Applied Mathematics|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||05 Nov 2008|
|Last modified:||29 Apr 2016 08:21|