Unlocking CVR benefits using active voltage control in LV networks

Luis Gutierrez-Lagos, Andreas T. Procopiou, Luis F. Ochoa

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

3 Scopus citations


Distribution networks have been traditionally designed with limited monitoring and controllability. Therefore, most Conservation Voltage Reduction (CVR) schemes have been implemented in MV networks. However, the deployment of on-load tap changers (OLTCs) and monitoring in LV networks creates the opportunity to actively manage voltages closer to end customers, unlocking further benefits. This work proposes an active CVR control scheme that, using limited monitoring, manages voltages in OLTC-enabled LV networks. A stochastic quantification process that caters for load uncertainties is used to assess the active control's annual benefits for different control cycles, considering realistic time-varying household profiles and models per day type and season (l-min resolution). Results on a real UK residential LV network model demonstrate the inadequacy of the well-known CVR factor to assess advanced control schemes. More importantly, the proposed approach significantly increases annual energy savings compared to fixed or active primary substation voltage reductions, regardless the control cycle.

Original languageEnglish
Title of host publication20th Power Systems Computation Conference, PSCC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781910963104
StatePublished - 20 Aug 2018
Event20th Power Systems Computation Conference, PSCC 2018 - Dublin, Ireland
Duration: 11 Jun 201815 Jun 2018

Publication series

Name20th Power Systems Computation Conference, PSCC 2018


Conference20th Power Systems Computation Conference, PSCC 2018


  • Conservation voltage reduction
  • Load models
  • Low voltage
  • On-load tap changer
  • Voltage control


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