TY - GEN
T1 - Subsynchronous Resonance Analysis in Multi-Bus Multi-VSC Power System Based on Two-Port Network Modeling Method
AU - Chou, Shih Feng
AU - Wang, Xiongfei
AU - Blaabjerg, Frede
N1 - Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/10
Y1 - 2020/10
N2 - This paper proposes a subsynchronous resonance (SSR) mode analysis method for the converter-based power system. In the system, the converters are modeled as multiple-input multiple-output admittance matrices, which essentially are two-port networks. Thus, the system including the grid impedances can be modeled as the connections of two-port networks, where the SSR mode can be identified by applying the impedance-based stability analysis method. To further distinguish the contributions of converter control dynamics to the SSR mode, the nodal admittance matrix is systematically obtained by applying the graph theory. Then, the modal impedances of the system can be derived and analyzed with the participation factors of each bus and the eigenvalue sensitivities to the specific entry in admittance matrix, which enable to quantify the contributions of network components to the SSR mode, and the theoretical analysis is validated by a case study.
AB - This paper proposes a subsynchronous resonance (SSR) mode analysis method for the converter-based power system. In the system, the converters are modeled as multiple-input multiple-output admittance matrices, which essentially are two-port networks. Thus, the system including the grid impedances can be modeled as the connections of two-port networks, where the SSR mode can be identified by applying the impedance-based stability analysis method. To further distinguish the contributions of converter control dynamics to the SSR mode, the nodal admittance matrix is systematically obtained by applying the graph theory. Then, the modal impedances of the system can be derived and analyzed with the participation factors of each bus and the eigenvalue sensitivities to the specific entry in admittance matrix, which enable to quantify the contributions of network components to the SSR mode, and the theoretical analysis is validated by a case study.
KW - Eigenvalue
KW - graph theory
KW - modal analysis
KW - subsynchronous resonance
KW - two-port network
UR - http://www.scopus.com/inward/record.url?scp=85097164317&partnerID=8YFLogxK
U2 - 10.1109/ECCE44975.2020.9236047
DO - 10.1109/ECCE44975.2020.9236047
M3 - Article in proceeding
AN - SCOPUS:85097164317
T3 - IEEE Energy Conversion Congress and Exposition
SP - 5696
EP - 5702
BT - ECCE 2020 - IEEE Energy Conversion Congress and Exposition
PB - IEEE
T2 - 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
Y2 - 11 October 2020 through 15 October 2020
ER -