Overview of mathematical morphology in power systems — A tutorial approach

Use of mathematical morphology (MM) in power system has been reported recently in open literature. However, MM has not been adequately discussed as a filtering tool for power system signals. This paper takes a tutorial-approach and explains the concept of MM, its derivative processes, basic MM based filters and their applications through simple reproducible examples. Characteristics of MM based filters and their associated delays are explained. The paper also shows the effect of varying different filter and signal parameters on the performance of MM based filters. The process of event detection using MM based filters is described as a typical application. Finally, a comprehensive list of the published applications of MM is provided.