TY - JOUR
T1 - A performance evaluation of future low voltage grids in presence of prosumers modelled in high temporal resolution
AU - Marszal, Anna Joanna
AU - Mendaza, Iker Diaz de Cerio
AU - Bak-Jensen, Birgitte
AU - Heiselberg, Per Kvols
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Prosumers have a different interaction with the distribution network in comparison with traditional consumers. They have a bi-directional power exchange with the grid, meaning they receive from as well as deliver electricity to the network. The emergence of prosumers is expected to challenge the way network operators control the residential low-voltage (LV) distribution networks. Commonly, the metering of received and delivered electricity at the residential level is conducted on 1-hour basis, thus only hourly load/generation profiles are available for the system operators to conduct the power system impact analysis. Yet, it is relatively difficult to have an accurate prediction of the real system performance if the intra-hour phenomena are not considered. A better estimation requires employment of higher temporal resolution profiles during the power system studies. To address these challenges, which future smart cities and communities might face, this paper presents a methodology for generating 1-minute load profiles based on the hourly readings from smart meters. Secondly, it demonstrates gain in information about LV network by employing the high resolution profiles for power system impact analysis. Finally, it highlights the problems of smart residential networks with high share of prosumers for two LV network scenarios during winter and summer weeks.
AB - Prosumers have a different interaction with the distribution network in comparison with traditional consumers. They have a bi-directional power exchange with the grid, meaning they receive from as well as deliver electricity to the network. The emergence of prosumers is expected to challenge the way network operators control the residential low-voltage (LV) distribution networks. Commonly, the metering of received and delivered electricity at the residential level is conducted on 1-hour basis, thus only hourly load/generation profiles are available for the system operators to conduct the power system impact analysis. Yet, it is relatively difficult to have an accurate prediction of the real system performance if the intra-hour phenomena are not considered. A better estimation requires employment of higher temporal resolution profiles during the power system studies. To address these challenges, which future smart cities and communities might face, this paper presents a methodology for generating 1-minute load profiles based on the hourly readings from smart meters. Secondly, it demonstrates gain in information about LV network by employing the high resolution profiles for power system impact analysis. Finally, it highlights the problems of smart residential networks with high share of prosumers for two LV network scenarios during winter and summer weeks.
KW - Domestic load profiles
KW - Methodology for resolution change
KW - Energy efficient buildings
KW - Distributed energy generation
KW - Management of smart grids
KW - Domestic load profiles
KW - Methodology for resolution change
KW - Energy efficient buildings
KW - Distributed energy generation
KW - Management of smart grids
UR - http://www.scopus.com/inward/record.url?scp=85056605216&partnerID=8YFLogxK
U2 - 10.1016/j.scs.2018.11.001
DO - 10.1016/j.scs.2018.11.001
M3 - Journal article
SN - 2210-6707
VL - 44
SP - 702
EP - 714
JO - Sustainable Cities and Society
JF - Sustainable Cities and Society
ER -