TY - JOUR
T1 - Vulnerability Identification and Evaluation of Interdependent Natural Gas-Electricity Systems
AU - Nan, Lu
AU - Wu, Lei
AU - Liu, Tianqi
AU - Liu, Yikui
AU - He, Chuan
N1 - Publisher Copyright:
© 2010-2012 IEEE.
PY - 2020/7
Y1 - 2020/7
N2 - The intensified interdependency of natural gas and electricity systems poses urgent needs and new challenges in identifying vulnerable components of the interdependent system, which could be significantly different from those of individual systems because of the interdependency. This paper proposes a method to identify and rank vulnerable components of interdependent natural gas-electricity systems. Specially, a topological model and the vulnerability index for the interdependent system are constructed, and vulnerable component identification method is put forward to select and rank components by simultaneously considering topological and functional vulnerabilities. The proposed vulnerable component identification method is quantitatively assessed via a security evaluation approach, which calculates electricity and gas supply-demand imbalance when the vulnerable components are out of service. Numerical results of a 6-bus electricity/7-node gas system and a modified IEEE 118-bus electricity/20-node gas system illustrate effectiveness of the proposed method.
AB - The intensified interdependency of natural gas and electricity systems poses urgent needs and new challenges in identifying vulnerable components of the interdependent system, which could be significantly different from those of individual systems because of the interdependency. This paper proposes a method to identify and rank vulnerable components of interdependent natural gas-electricity systems. Specially, a topological model and the vulnerability index for the interdependent system are constructed, and vulnerable component identification method is put forward to select and rank components by simultaneously considering topological and functional vulnerabilities. The proposed vulnerable component identification method is quantitatively assessed via a security evaluation approach, which calculates electricity and gas supply-demand imbalance when the vulnerable components are out of service. Numerical results of a 6-bus electricity/7-node gas system and a modified IEEE 118-bus electricity/20-node gas system illustrate effectiveness of the proposed method.
KW - Interdependent infrastructures
KW - graph theory
KW - node contraction
KW - security evaluation
KW - vulnerability index
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U2 - 10.1109/TSG.2020.2968178
DO - 10.1109/TSG.2020.2968178
M3 - Article
AN - SCOPUS:85087402906
SN - 1949-3053
VL - 11
SP - 3558
EP - 3569
JO - IEEE Transactions on Smart Grid
JF - IEEE Transactions on Smart Grid
IS - 4
M1 - 8964308
ER -