TY - GEN
T1 - Nonlinear Network Equivalents of Systems with Inverter Based Resources to Study Unbalanced Faults in Steady State
AU - Kocar, Ilhan
AU - Chang, Yuanzhu
AU - Furlaneto, Renan M.
AU - Grilo-Pavani, Ahda
AU - Haddadi, Aboutaleb
AU - Farantatos, Evangelos
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022/7
Y1 - 2022/7
N2 - This paper proposes a method to obtain steady state short circuit network equivalents of systems with Inverter-Based Resources (IBRs) in the positive and negative sequence domains. Such an equivalent model improves the efficiency of short circuit simulation studies by reducing the computational burden while preserving simulation accuracy. The proposed network equivalent in the positive sequence domain consists of a Thevenin equivalent circuit in parallel with a voltage dependent nonlinear current source to account for the combination of conventional synchronous generators and IBRs. The representation in the negative sequence system depends on the fault-ride-through requirements, IBR type, and IBR control scheme. The proposed network equivalents in the positive and negative sequence domains are shown to successfully reproduce the fault response of a detailed system at a given point of interconnection with an external network.
AB - This paper proposes a method to obtain steady state short circuit network equivalents of systems with Inverter-Based Resources (IBRs) in the positive and negative sequence domains. Such an equivalent model improves the efficiency of short circuit simulation studies by reducing the computational burden while preserving simulation accuracy. The proposed network equivalent in the positive sequence domain consists of a Thevenin equivalent circuit in parallel with a voltage dependent nonlinear current source to account for the combination of conventional synchronous generators and IBRs. The representation in the negative sequence system depends on the fault-ride-through requirements, IBR type, and IBR control scheme. The proposed network equivalents in the positive and negative sequence domains are shown to successfully reproduce the fault response of a detailed system at a given point of interconnection with an external network.
KW - doubly fed induction generator (DFIG)
KW - full-scale converter (FSC)
KW - Inverter-based resources
KW - network equivalents
KW - unbalanced faults
UR - http://www.scopus.com/inward/record.url?scp=85141472041&partnerID=8YFLogxK
U2 - 10.1109/PESGM48719.2022.9917238
DO - 10.1109/PESGM48719.2022.9917238
M3 - Conference article published in proceeding or book
AN - SCOPUS:85141472041
T3 - IEEE Power and Energy Society General Meeting
BT - 2022 IEEE Power and Energy Society General Meeting, PESGM 2022
PB - IEEE Computer Society
T2 - 2022 IEEE Power and Energy Society General Meeting, PESGM 2022
Y2 - 17 July 2022 through 21 July 2022
ER -