Transformer inrush identification based on improved mathematical gradient with dissociative structuring element. Issue 7 (4th May 2020)

• Record Type: Journal Article
• Authors: Huang, M. C.; Wu, Q. H.; Ji, T. Y.; Zhang, L. L.
• Is Part Of: IEEJ transactions on electrical and electronic engineering. Volume 15:Issue 7(2020)
• Page Start: 1126
• Page End: 1127
• Publication Date: 2020-05-04
• Subjects: power transformer -- magnetizing inrush -- morphological gradient -- structuring element; Electrical engineering -- Periodicals; Electronics -- Periodicals; 621.3
• DOI: 10.1002/tee.23159
• Languages: English
• ISSNs: 1931-4973

Abstract

Abstract : This paper presents an improved morphological gradient for transformer inrush identification. Dissociative structuring element is presented and used to perform gradient operation, which can decrease the computational burden. Besides, a new index is introduced to measure the feature of extracted morphological gradient and to distinguish inrush from fault current. Simulation studies are conducted using PSCAD, and the results verify the effectiveness of the proposed method. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.