Open AccessDistributed signal processing units for centralised substation protection and control
Author(s) -
Hohn Fabian,
Rabuzin Tin,
Wang Jianping,
Nordström Lars
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0206
Subject(s) - transformer , computer science , signal (programming language) , architecture , embedded system , voltage , electronic engineering , electrical engineering , engineering , programming language , art , visual arts
Substation automation systems are characterised by a high degree of functional integration, which can lead to a centralised substation protection and control (CPC) architecture. Most CPC architectures utilise merging units to interface with current and voltage transformers, which causes a high‐communication load on the process bus in case of large substations. This study proposes a CPC architecture based on distributed signal processing units (DSPUs) to overcome those drawbacks by publishing the results of the signal processing algorithms directly. The reduction of the communication load through the usage of DSPUs has been shown in a case study, which uses a 16‐bay transmission substation topology as a reference.