Adoption of capacitors to mitigate voltage issues in low voltage networks with photovoltaic systems

C. Long, L.F. Ochoa, G. Bryson, D. Randles

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

    35 Downloads (Pure)

    Abstract

    (paper accepted) The penetration of residential-scale photovoltaic (PV) systems in LV networks is expected to increase over the next decades. However, clusters already exist and are resulting in voltage rise issues. This paper presents the adoption of capacitors to manage voltages when lower voltages at the busbar (required to cope with voltage rise in feeders with PV systems) result in even lower voltages in other feeders. The capacitors are placed in the more loaded LV feeders and are operated in a decentralised voltage-based control mode. Monte Carlo-based time-series (1-minute resolution) power flow analyses are carried out considering one capacitor bank or multiple capacitor banks connected in a real UK LV network. Results demonstrate that it is possible to effectively manage voltages by adopting the highest off-load tap position (lowest busbar voltage) and the coordinated control of capacitor banks. In the context of PV systems, this represents a much lower cost solution than LV OLTC-fitted transformers.
    Original languageEnglish
    Title of host publication23rd International Conference on Electricity Distribution CIRED 2015
    Pages1-5
    Number of pages5
    Publication statusPublished - Jun 2015
    Event23rd International Conference on Electricity Distribution CIRED 2015 -
    Duration: 15 Jun 201518 Jun 2015

    Conference

    Conference23rd International Conference on Electricity Distribution CIRED 2015
    Period15/06/1518/06/15

    Fingerprint

    Dive into the research topics of 'Adoption of capacitors to mitigate voltage issues in low voltage networks with photovoltaic systems'. Together they form a unique fingerprint.

    Cite this