Enhancement of overcurrent protection in active medium voltage distribution networks

Matin Meskin, Praveen Iyer, Alexander Domijan, Ilya Grinberg

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

9 Scopus citations

Abstract

Using renewable sources to meet the load demand in the distribution level has become more economical and prevalent. The integration of these sources has impact on the load flow direction and magnitude. These changes can affect the operation of overcurrent (OC) relays as the main protective device in medium voltage (MV) distribution networks. In other words, the changes in the current magnitude and direction will result in misoperation of the OC relays during normal conditions of the network. In addition, the variation of the output generation of renewable sources due to weather condition changes, makes it difficult to define appropriate settings for OC relays. In this paper, a novel idea for improvement of OC relay operation in MV distribution networks in the presence of photovoltaic (PV) sources is presented. The proposed protection system is based on the augmentation of current and the reduction in voltage during the fault. Therefore, a combination of directional OC and under-voltage (UV) protection can distinguish between faulty and normal conditions. The proposed method is simulated using EMTDC/PSCAD software. The results show that the proposed method can effectively protect the MV distribution network containing PV sources.

Original languageEnglish
Title of host publication2017 6th International Conference on Renewable Energy Research and Applications, ICRERA 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages937-942
Number of pages6
ISBN (Electronic)9781538620953
DOIs
StatePublished - 12 Dec 2017
Externally publishedYes
Event6th IEEE International Conference on Renewable Energy Research and Applications, ICRERA 2017 - San Diego, United States
Duration: 5 Nov 20178 Nov 2017

Publication series

Name2017 6th International Conference on Renewable Energy Research and Applications, ICRERA 2017
Volume2017-January

Conference

Conference6th IEEE International Conference on Renewable Energy Research and Applications, ICRERA 2017
Country/TerritoryUnited States
CitySan Diego
Period5/11/178/11/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

  • Directional overcurrent relay
  • Distribution network
  • Photovoltaic source
  • Renewable source
  • Undervoltage protection
  • Voltage controlled overcurrent protection

Fingerprint

Dive into the research topics of 'Enhancement of overcurrent protection in active medium voltage distribution networks'. Together they form a unique fingerprint.

Cite this