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浙江大学学报(工学版)
浙江大学学报(工学版)  2023, Vol. 57 Issue (3): 583-590    DOI: 10.3785/j.issn.1008-973X.2023.03.016
土木工程     
变电站主接线系统抗震韧性多指标评估流程
刘晓航1,2(),郑山锁1,2,*(),董淑卿3,杨丰4,董晋琪1,2,张晓宇1,2
1. 西安建筑科技大学 土木工程学院，陕西 西安，710055
2. 西安建筑科技大学 结构工程与抗震教育部重点实验室，陕西 西安，710055
3. 陕西省电力设计院有限公司，陕西 西安 710055
4. 中国启源工程设计研究院有限公司，陕西 西安 710055
Multi-index evaluation process of seismic resilience of substation main wiring system
Xiao-hang LIU1,2(),Shan-suo ZHENG1,2,*(),Shu-qing DONG3,Feng YANG4,Jin-qi DONG1,2,Xiao-yu ZHANG1,2
1. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
2. Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture and Technology, Xi’an 710055, China
3. Shaanxi Electric Power Design Institute Limited Company, Xi’an 710055, China
4. China Qiyuan Engineering Corporation, Xi’an 710055, China
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摘要：

为了量化评估变电站主接线系统的抗震韧性，充分考虑变电站的地震响应及修复过程的不确定性，提出变电站系统抗震韧性多指标评估流程，全面评估变电站系统抵御地震风险和震后功能恢复的能力. 引入单元重要度概念，求解系统不同功能状态的最优恢复方案，基于时间步长推进方法，获得变电站系统在模拟破坏工况下的实时修复进程，得到主接线系统性能恢复曲线，计算对应的供电需求、冗余率、震后性能及修复速率等抗震韧性指标. 以典型6进线10出线220/110/10 kV变电站作为实例进行抗震韧性定量评估，结果表明基于功能单元重要度概念的最优恢复方案能够有效减少系统恢复阶段达到最大功能状态所用时间.
关键词： 拟蒙特卡洛模拟;  变电站主接线系统;  性能恢复曲线;  抗震韧性指标;  不确定性    
Abstract:

To quantitatively evaluated the seismic resilience of the substation main wiring system and fully considered the uncertainty of the substation’s seismic response and repair process, a multi-index evaluation process of the seismic resilience of the substation system was proposed to comprehensively evaluate the ability of the substation system to resist earthquake risks and recover its functions after earthquakes. The concept of unit importance was introduced to solve the optimal recovery scheme for different functional states of the system. Based on the time step advancement method, the real-time repair process of the substation system under the simulated damage condition was obtained, and the performance recovery curve of the main wiring system was obtained. The corresponding seismic resilience indexes such as power supply demand, redundancy rate, post-earthquake performance and repair rate were calculated. Taking a typical 6 incoming and 10 outgoing 220/110/10 kV substation as an example, the quantitative evaluation of seismic resilience was carried out. Results showed that the optimal recovery scheme based on the concept of functional unit importance could effectively reduce the time for the system to reach the maximum functional state in the recovery phase.
Key words: quasi-Monte Carlo simulation    substation main wiring system    performance recovery curve    seismic resilience index    uncertainty
收稿日期: 2022-02-23 出版日期: 2023-03-31
CLC:  P 315.9  
基金资助: 国家重点研发计划资助项目(2019YFC1509302)；陕西省重点研发计划资助项目(2021ZDLSF06-10)
通讯作者: 郑山锁     E-mail: liuxiaohang95@outlook.com;zhengshansuo@263.net
作者简介: 刘晓航（1995-），男，博士生，从事生命线工程抗震研究. orcid：0000-0001-7988-5507. E-mail： liuxiaohang95@outlook.com
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引用本文:

刘晓航,郑山锁,董淑卿,杨丰,董晋琪,张晓宇. 变电站主接线系统抗震韧性多指标评估流程[J]. 浙江大学学报(工学版), 2023, 57(3): 583-590.

Xiao-hang LIU,Shan-suo ZHENG,Shu-qing DONG,Feng YANG,Jin-qi DONG,Xiao-yu ZHANG. Multi-index evaluation process of seismic resilience of substation main wiring system. Journal of ZheJiang University (Engineering Science), 2023, 57(3): 583-590.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2023.03.016    或    https://www.zjujournals.com/eng/CN/Y2023/V57/I3/583

功能单元 n
SF DS CT CB PT LA IS TR BUS
进线单元 2 1 1 1 1 0 0 0 0
出线单元 1 1 1 1 1 0 0 0 0
连接1单元 0 1 0 0 0 0 0 0 0
连接2单元 0 1 0 0 0 0 1 0 0
母联单元 2 2 1 1 0 0 1 0 0
220 kV母线 0 0 0 0 1 1 16 0 1
110 kV母线 0 0 0 0 1 1 10 0 1
变压器 3 2 2 2 0 2 0 1 0
表 1  功能单元划分依据
图 1  单次模拟变电站系统功能恢复示意图
图 2  变电站系统抗震韧性评估流程
图 3  典型220 kV变电站设施布局
图 4  基于震害经验统计的供电设施抗震易损性曲线
图 5  基于功能单元的变电站系统逻辑关系图
图 6  基于边权模型化简的变电站系统逻辑关系图
功能单元 $ \overline {{T }}$/d $ {\sigma ^2} $ 功能单元 $ \overline {{T }}$/d $ {\sigma ^2} $
进线单元 4 1.5 连接单元 1 0.5
出线单元 3 1.0 母联单元 2 1.0
变压器单元 3 2.0 管母线单元 1 1.0
表 2  各功能单元修复时间正态分布参数取值
图 7  变电站系统不同剩余功能对应恢复曲线（500次模拟）
PGA/g $\overline { {T } }_{\rm{C}} $/d $\overline { {T } }_{\rm{R}} $/d $\overline { {T } }_{\rm{F}} $/d ENS
0.20 13.8239 4.067 0 9.756 9 2.326 2
0.25 24.4711 6.149 1 18.322 0 8.637 9
0.30 35.905 1 7.215 0 28.690 1 16.241 7
0.35 49.058 2 9.286 9 39.771 3 22.210 8
表 3  抗震韧性评估结果（500次模拟）
Fs NIO
PGA=0.20g PGA=0.25g PGA=0.30g PGA=0.35g
0 20 100 236 403
1/10 0 0 0 0
2/10 5 24 44 41
3/10 0 0 0 1
4/10 16 66 93 44
5/10 119 149 93 9
6/10 53 61 22 2
7/10 8 12 4 0
8/10 111 67 4 0
9/10 77 12 3 0
1 91 9 1 0
表 4  变电站系统各初始功能模拟出现次数（500次模拟）
图 8  变电站主接线系统在不同设定地震作用下抗震韧性指标计算期望值
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