A LV network overvoltage mitigation strategy based on epsilon-decomposition

M.M. Viyathukattuva Mohamed Ali, N.G. Paterakis, P.H. Nguyen, J.F.G. Cobben

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

14 Citations (Scopus)
3 Downloads (Pure)


To increase the penetration of distributed renewable energy resources (DRES) in the existing LV network, new control solutions need to be developed. In this paper an algorithm for overvoltage mitigation in LV networks with DRES is proposed. Complex communication infrastructure for monitoring and controlling an extensive part of the LV network is not economically attractive for distribution system operators (DSO). Thus, in this study, a large LV network is decomposed into a number of smaller sub-networks using the epsilon-decomposition algorithm. As a result, applying the proposed control strategy requires communication only within the individual sub-networks. The sensitivity matrix-based method is used to mitigate the overvoltage problem by partially curtailing the output power of DRES. The proposed control strategy can mitigate the overvoltage also in case loss of communication occurs in few DRES units. Finally, it is demonstrated that the proposed approach to decomposing the network can be performed offline using system data that is readily available to the DSO, and consequently it can be easily applied in real LV networks.

Original languageEnglish
Title of host publication2017 IEEE Manchester PowerTech, Powertech 2017, 18-22 June 2017, Manchester, United Kingdom
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)978-1-5090-4237-1
ISBN (Print)978-1-5090-4238-8
Publication statusPublished - 13 Jul 2017
Event2017 IEEE PowerTech Manchester - University of Manchester, Manchester, United Kingdom
Duration: 18 Jun 201722 Jun 2017
Conference number: 12


Conference2017 IEEE PowerTech Manchester
Abbreviated titlePowerTech 2017
Country/TerritoryUnited Kingdom
OtherTowards and Beyond Sustainable Energy Systems
Internet address


  • Admittance matrix
  • epsilon decomposition
  • multi-agent system
  • overvoltage mitigation


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