Title: Disturbance detection using an improved hit-or-miss transform

Authors: T.Y. Ji, Q.H. Wu

Addresses: Electrical Engineering and Electronics, The University of Liverpool, Brownlow Hill, Liverpool, UK. ' Electrical Engineering and Electronics, The University of Liverpool, Brownlow Hill, Liverpool, UK

Abstract: Power disturbances have always been an important issue in the power system protection. This paper presents a novel algorithm, improved hit-or-miss transform (IHMT), for the detection of power disturbances. IHMT is a morphological operator that uses a structuring element (SE) consisting of two sets. Besides, it employs basic morphological operators only, which ensures the algorithm to perform fast calculation. Applied to power systems, IHMT detects the location and duration of disturbances. A variety of power disturbances have been simulated to evaluate the validity of IHMT.

Keywords: mathematical morphology; hit-or-miss transform; power quality; disturbance detection; disturbance identification; power disturbances; power system protection; simulation.

DOI: 10.1504/IJMIC.2009.028876

International Journal of Modelling, Identification and Control, 2009 Vol.8 No.1, pp.61 - 67

Published online: 09 Oct 2009 *

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