Investigating the effects of Conservation Voltage Reduction on UK-type residential networks

D. T. Azuatalam, O. C. Unigwe, A. J. Collin

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

5 Citations (Scopus)


In the smart grid era, utilities need to achieve a more secure, sustainable and efficient power system network. Load management techniques have been used to achieve this, to reduce peak demand and which may also defer the need for building extra generating capacity. One such technique performed by the utility for peak demand reduction is Conservation Voltage Reduction (CVR). This paper investigates the effects of carrying out CVR (open-loop) on UK-type residential feeders via OLTCs (On Load Tap Changers). The effects were analyzed in the context of peakdemand reduction, overall network efficiency and transformer losses. Load profiles of residential consumers were modeled considering two load scenarios (with different ZIP parameters) and the networks used which were of different length and topology were modeled with OpenDSS. Time-step simulations were performed using MATLAB and the results obtained show that the amount of demand savings achievable is dependent on load composition, the time of day and the season effected. This research shows the CVR factor as a dynamic factor indicating how it varies throughout a day which is an improvement of previous works showing a single value.

Original languageEnglish
Title of host publicationProceedings of the 2016 Australasian Universities Power Engineering Conference (AUPEC)
EditorsMithulan Nadarajah, Narottam Das, Rahul Sharma, Hui Ma
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781509014057, 9781509014040
ISBN (Print)9781509014064
Publication statusPublished - 2016
Externally publishedYes
EventAustralasian Universities Power Engineering Conference 2016 - Brisbane, Australia
Duration: 25 Sep 201628 Sep 2016


ConferenceAustralasian Universities Power Engineering Conference 2016
Abbreviated titleAUPEC 2016
Internet address


  • CVR
  • Demand side management
  • Load management
  • Smart grids
  • ZIP model

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