TY - GEN
T1 - The Imbalance-Induced Resistive Heating Profiles Analysis for Low Voltage Transformers
AU - Fang, Lurui
AU - Ma, Kang
AU - Xiao, Song
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/4
Y1 - 2019/4
N2 - Phase imbalance in the UK and European low voltage (415V, LV) distribution networks is a widely acknowledged issue. For LV transformers (11 kV/0.415 kV), phase imbalance causes extra energy losses on transformer windings. These extra energy losses induce the imbalance-induced resistive heating, which then causes the increase of LV transformers' winding temperature. A key barrier for understanding the general picture of imbalance-induced resistance heating is the absence of LV transformers' time series loading data, i.e. UK has 900,000 LV transformer, but most of them are not monitored. To address this challenge, a data-driven approach is proposed. It finds representative clusters of the imbalance-induced resistive heating profiles, leverage the data from only 800 LV transformers. Through an extensive case study, the representative imbalance-induced resistive heating profiles are given by cumulative density functions. The case study also reveals that up to 50% resistive heating is produced by the imbalance-induced resistive heating.
AB - Phase imbalance in the UK and European low voltage (415V, LV) distribution networks is a widely acknowledged issue. For LV transformers (11 kV/0.415 kV), phase imbalance causes extra energy losses on transformer windings. These extra energy losses induce the imbalance-induced resistive heating, which then causes the increase of LV transformers' winding temperature. A key barrier for understanding the general picture of imbalance-induced resistance heating is the absence of LV transformers' time series loading data, i.e. UK has 900,000 LV transformer, but most of them are not monitored. To address this challenge, a data-driven approach is proposed. It finds representative clusters of the imbalance-induced resistive heating profiles, leverage the data from only 800 LV transformers. Through an extensive case study, the representative imbalance-induced resistive heating profiles are given by cumulative density functions. The case study also reveals that up to 50% resistive heating is produced by the imbalance-induced resistive heating.
KW - low voltage
KW - phase imbalance
KW - resistive heating
KW - three-phase power
KW - transformer operation
UR - http://www.scopus.com/inward/record.url?scp=85067892486&partnerID=8YFLogxK
U2 - 10.1109/ICEMPE.2019.8727274
DO - 10.1109/ICEMPE.2019.8727274
M3 - Conference Proceeding
AN - SCOPUS:85067892486
T3 - ICEMPE 2019 - 2nd International Conference on Electrical Materials and Power Equipment, Proceedings
SP - 560
EP - 563
BT - ICEMPE 2019 - 2nd International Conference on Electrical Materials and Power Equipment, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019
Y2 - 7 April 2019 through 10 April 2019
ER -