Vulnerability Assessment of Power Information System Considering Cascading Failures

Shiying MA; Yihao GUO; Dunwen SONG; Chuangxin GUO

doi:10.12096/j.2096-4528.pgt.2018.034

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Vulnerability Assessment of Power Information System Considering Cascading Failures

Energy Internet | 更新时间：2025-06-06

- Vulnerability Assessment of Power Information System Considering Cascading Failures
- Power Generation Technology Vol. 39, Issue 3, Pages: 226-232(2018)
- 作者机构：
  
  1.电网安全与节能国家重点实验室(中国电力科学研究院有限公司), 北京市海淀区 100192
  2.浙江大学电气工程学院, 浙江省杭州市 310027
- 作者简介：
- 基金信息：
  
  National Nature Science Foundation of China(51537010);Science and Technology Project of State Grid Corporation of China(XT71-16-053)
- DOI：10.12096/j.2096-4528.pgt.2018.034
  CLC：
- Received：24 March 2018，
  
  Published：28 June 2018
- 稿件说明：
移动端阅览
Shiying MA, Yihao GUO, Dunwen SONG, et al. Vulnerability Assessment of Power Information System Considering Cascading Failures[J]. Power Generation Technology, 2018, 39(3): 226-232.
DOI：

Shiying MA, Yihao GUO, Dunwen SONG, et al. Vulnerability Assessment of Power Information System Considering Cascading Failures[J]. Power Generation Technology, 2018, 39(3): 226-232. DOI： 10.12096/j.2096-4528.pgt.2018.034.

摘要

电力信息系统对保障电网正常运行至关重要。电力信息系统发生故障会导致系统中负载的重新分配，由此引发的网络拥塞等问题可能导致新的设备或子系统故障，从而形成级联失效。将电力信息系统抽象为复杂网络，在此基础上，改进了传统的负载-容量模型使其满足电力信息系统数据流特点，同时将节点在物理世界中的分布反映在节点负载中；从拓扑结构和网络性能两方面建立了脆弱性评估指标，并给出了完整的脆弱性评估流程；最后，通过对测试系统进行仿真计算，分析了级联失效的过程和冗余系数对系统脆弱性的影响，验证了方法的有效性和合理性。

Abstract

Power information systems are important for the operation of power systems. When part of the power information system fails

the loads will be redistributed. Due to network congestions

cascading failures may occur

and additional devices or sub-systems would fail. In this paper

power information system was abstracted to a complex network. The traditional load-capacity model was improved to satisfy the characteristics of power information systems. The improved model also reflects the distribution of power information system nodes. Moreover

two vulnerability indices were established from the perspective of both topological structure and network properties

and the vulnerability assessment process was proposed. Finally

cascading failure process and the impact of redundancy factor were analyzed in case study. The effectiveness and rationality of this method was verified by the results.

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Keywords

references

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