Optimal Decision-making Method of Wind-proof and Disaster-resistant Reinforcement Measures for Distribution Network

doi:10.12096/j.2096-4528.pgt.20126

Abstract

Abstract:

Typhoon is one of the common natural disasters, which will seriously affect the normal operation of the distribution network infrastructure. Reinforcing system infrastructure (such as wires and poles) to improve their disaster resilience is an effective way to reduce losses caused by extreme weather events. Therefore, this paper proposes a pre-disaster reinforcement strategy for the distribution network infrastructure considering economic constraints. Firstly, the models of occurrence of extreme weather, component fragility and the disaster response process were created. Then, the disaster resilience of distribution network was evaluated via Monte Carlo simulation. The reinforcement strategy was further optimized through the particle swarm optimization algorithm, considering the total reinforcement budget, the load importance and the component fragility. Finally, the proposed strategy was applied to an improved 18-bus distribution system to verify its effectiveness.

Key words: typhoon, distribution network, disaster resilience evaluation, infrastructure reinforcement

CLC Number:

TK01
TM715

Xin GAO, Fei TANG, Tongyan ZHANG, Yu LI. Optimal Decision-making Method of Wind-proof and Disaster-resistant Reinforcement Measures for Distribution Network[J]. Power Generation Technology, 2021, 42(1): 78-85.

Figures/Tables 8

References 23

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加固措施	成本/元
替换相同等级的混凝土杆	800
替换更高等级的混凝土杆	1 300
替换相同等级的木杆	500
替换更高等级的木杆	700
加固电杆	400
植被修剪管理	300

加固措施	成本/元
替换相同等级的混凝土杆	800
替换更高等级的混凝土杆	1 300
替换相同等级的木杆	500
替换更高等级的木杆	700
加固电杆	400
植被修剪管理	300

项目	方案1	方案2	方案3
VoLL/万元	148.4	88.9	59.5
平均停电时间/h	137.8	126.2	104.3
平均电杆损坏数/根	21	17	11
加固成本/万元	0	9.35	9.88
加固的支路数	—	11	8

项目	方案1	方案2	方案3
VoLL/万元	148.4	88.9	59.5
平均停电时间/h	137.8	126.2	104.3
平均电杆损坏数/根	21	17	11
加固成本/万元	0	9.35	9.88
加固的支路数	—	11	8

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