Impact of the Operation of Distribution Systems on the Resilience Assessment of Transmission Systems under Ice Disasters

Zhiwei Wang, Xiao Ma, Song Gao, Changjiang Wang () and Shuguang Li
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Zhiwei Wang: State Grid Jilin Electric Power Co., Ltd., Changchun 130022, China
Xiao Ma: Department of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China
Song Gao: State Grid Jilin Province Electric Research Institute, Changchun 130021, China
Changjiang Wang: Department of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China
Shuguang Li: Department of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China

Energies, 2023, vol. 16, issue 9, 1-27

Abstract: Ice disasters, such as ice storms, can cause serious damage to power systems. To understand ice disasters’ influences on power systems, this paper introduces a resilience evaluation frame for transmission and distribution systems during ice disasters. First, we built a vulnerability model for transmission and distribution systems under ice disaster weather. Then, we established an optimal load power shedding model for transmission and distribution systems. After this, according to the vulnerability model and the optimal power load power shedding model, we generated the fault scenario set of a system in the influence of an ice disaster. According to the curve of system resilience, we propose two resilience evaluation indices of transmission and distribution systems under ice disaster weather. Finally, we verified the efficacy and rationalization of the established resilience evaluation framework with an example in which a transmission and distribution system is coupled with a six-bus transmission system and two distribution systems. This study highlights the necessity of resilience assessment of transmission and distribution systems during ice disasters.

Keywords: ice disaster; transmission system; distribution system; resilience evaluation; load shedding (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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