TY - GEN
T1 - Negative Sequence Power based Fault Detection Scheme for Power Islands during Unbalanced Faults
AU - Chhetija, Deepika
AU - Khan, Imran
AU - Rather, Zakir H.
AU - Doolla, Suryanarayana
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - High penetration of inverter interfaced distributed generators (IIDGs) in the distribution network has evolved the concept of power islands, which can operate independently to feed the local network when the grid is unavailable. The unconventional fault signatures of IIDGs adversely affect the conventional protective relaying. The low short circuit current contribution and control dependent fault behavior of inverters creates protection challenges mainly for these power islands. This article unveils the failure of phase and sequence components based on conventional fault detection schemes in the presence of IIDGs. To address this issue, a negative sequence power based fault detection method is proposed, which only requires local voltage and current at the relaying point, hence does not depend upon any type of communication. The scheme is validated on islanded 18-bus CIGRE benchmark network for various fault cases at different inception angles for various fault resistances and load variations. Further, the proposed scheme is also tested for no-fault scenarios such as motor starting transient, load imbalance, and IIDG outage.
AB - High penetration of inverter interfaced distributed generators (IIDGs) in the distribution network has evolved the concept of power islands, which can operate independently to feed the local network when the grid is unavailable. The unconventional fault signatures of IIDGs adversely affect the conventional protective relaying. The low short circuit current contribution and control dependent fault behavior of inverters creates protection challenges mainly for these power islands. This article unveils the failure of phase and sequence components based on conventional fault detection schemes in the presence of IIDGs. To address this issue, a negative sequence power based fault detection method is proposed, which only requires local voltage and current at the relaying point, hence does not depend upon any type of communication. The scheme is validated on islanded 18-bus CIGRE benchmark network for various fault cases at different inception angles for various fault resistances and load variations. Further, the proposed scheme is also tested for no-fault scenarios such as motor starting transient, load imbalance, and IIDG outage.
KW - Grid forming inverters
KW - Inverter interfaced distributed generators
KW - Negative sequence power
KW - Unbalanced faults
UR - https://www.scopus.com/pages/publications/85168699106
U2 - 10.1109/EEEIC/ICPSEurope57605.2023.10194733
DO - 10.1109/EEEIC/ICPSEurope57605.2023.10194733
M3 - Conference contribution
AN - SCOPUS:85168699106
T3 - Proceedings - 2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe, EEEIC / I and CPS Europe 2023
BT - Proceedings - 2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe, EEEIC / I and CPS Europe 2023
A2 - Leonowicz, Zbigniew
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe, EEEIC / I and CPS Europe 2023
Y2 - 6 June 2023 through 9 June 2023
ER -