Modelling the IEC 61850 and DNP3 Protocol Using OPNET in an Electrical Substation Communication Network

Dion Njova, Kingsley Ogudo, Patrice Umenne

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Communication protocols are a composite of supervisory control and data acquisition (SCADA) and they are used by the devices connected on the SCADA network. In this paper the distributed network protocol (DNP3) and International Electrotechnical Commission IEC 61850 communication protocols were modelled in OPNET. The simulation of DNP3 and IEC 61850 communication protocol is done in different scenarios and the traffic behavior is analyzed. The DNP3 protocol is modelled as the medium protocol of communication during the maintenance of a 400kV Transformer at an Electrical Substation. Its network traffic behavior is then analyzed for this operation. The IEC 61850 protocol is then used as a medium of communication in the same Electrical Substation communication network (SCN) when a faulty backbone switch is present. In this scenario the network traffic behavior is again analyzed. The DNP3 simulation during the maintenance of the 400 kV Transformer shows that the model is working since the throughput is consistent without dropped packets at the Substation RTU end and the 400kV Transformer IED end. The IEC 61850 simulation when a faulty backbone switch is present shows that the model is working in this scenario since the throughput is again consistent. When the IEC 61850 protocol is modelled on the SCN, the time delay is 80 μs during normal operation and with a faulty switch the delay is 100 μs for this protocol. This shows that for the IEC 61850 model the time delay increases when there is a faulty backbone switch but not exceedingly since there is a backup switch in the structure. In the DNP3 model during the maintenance of the 400kV Transformer the time delay is approximately 160 μs. The IEC 61850 protocol performs approximately twice as fast as the DNP3 protocol during normal operation in an SCN.

Original languageEnglish
Title of host publication5th International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems, icABCD 2022 - Proceedings
EditorsSameerchand Pudaruth, Upasana Singh
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665484220
DOIs
Publication statusPublished - 2022
Event5th International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems, icABCD 2022 - Durban, South Africa
Duration: 4 Aug 20225 Aug 2022

Publication series

Name5th International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems, icABCD 2022 - Proceedings

Conference

Conference5th International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems, icABCD 2022
Country/TerritorySouth Africa
CityDurban
Period4/08/225/08/22

Keywords

  • Distributed Network Protocol (DNP3)
  • Intelligent Electronic Devices (IED's)
  • International Electrotechnical Commission (IEC) 61850
  • Remote Terminal Unit (RTU)
  • Supervisory Control and Data Acquisition (SCADA)

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Computer Vision and Pattern Recognition
  • Information Systems
  • Information Systems and Management
  • Education

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