Seismic redundancy quantification method of substation systems

被引：0
|
作者：
Li J. [1 ,2 ]
Shang Q. [3 ]
Wang T. [1 ,2 ]
机构：
[1] Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin
[2] Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, Harbin
[3] Department of Civil Engineering, Tsinghua University, Beijing
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2024年 / 54卷 / 01期
关键词：
coefficient of redundancy; degree of redundancy; effect inex of redundancy; quantification analysis; seismic redundancy; substation system;
D O I：
10.3969/j.issn.1001-0505.2024.01.010
中图分类号：
学科分类号：
摘要：
To quantify the influence of redundancy on the seismic performance of substation systems,a state tree-based seismic redundancy assessment method was put forward. Firstly,the degree of redundancy (DOR),the effect index of redundancy (EOR)and the coefficient of redundancy (COR)were proposed at the functional unit level. Then,the linear weighted combination (LWC)and the nonlinear weighted combination (NLWC)calculation methods for the DOR of the system based on the DOR and COR of the functional units was proposed. Finally,the correlation model of the system DOR and EOR was developed. The results show that the seismic performance of the substation system is positively related to its redundancy. The system DOR-EOR model is expressed using a straight line through the origin. The slop is the ratio of the maximum increment of system performance index to the maximum DOR of the system. The busbar unit is used to collect and distribute electricity,which amplifies the redundancy influence of the in-line unit and the transformer unit. Using the LWC and NLWC calculation methods,the maximum DORs of the system are 0. 870 and 0. 980,and the corresponding slopes of the system DOR-EOR model are 0. 696 8 and 0. 618 1,respectively. © 2024 Southeast University. All rights reserved.
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页码：72 / 79
页数：7
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