计及级联失效的电力信息系统脆弱性评估

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

发电技术 ›› 2018, Vol. 39 ›› Issue (3): 226-232.DOI: 10.12096/j.2096-4528.pgt.2018.034

计及级联失效的电力信息系统脆弱性评估

马世英¹(),郭逸豪²,宋墩文¹,郭创新²

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

收稿日期:2018-03-24 出版日期:2018-06-30 发布日期:2018-07-27
作者简介:马世英(1969),男,教授级高级工程师,主要从事电力系统稳定与控制、电力系统仿真技术研究工作, mashiy@epri.sgcccom.cn|郭逸豪(1995),男,博士研究生,主要研究方向为电网信息物理系统、综合能源系统|宋墩文(1971),男,高级工程师,研究方向为电力系统安全稳定控制和电力系统仿真计算分析|郭创新(1969),男,教授,博士生导师,研究方向为电网信息物理系统、智能信息处理技术、风险调度
基金资助:
国家自然科学基金项目(51537010);国家电网公司科技项目(XT71-16-053)

Vulnerability Assessment of Power Information System Considering Cascading Failures

Shiying MA¹(),Yihao GUO²,Dunwen SONG¹,Chuangxin GUO²

¹ State Key Laboratory of Power Grid Safety and Energy Conservation(China Electric Power Research Institute), Haidian District, Beijing 100192, China
² College of Electrical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang Province, China

Received:2018-03-24 Published:2018-06-30 Online:2018-07-27
Supported by:
National Natural Science Foundation of China(51537010);Science and Technology Project of State Grid Corporation of China(XT71-16-053)

摘要/Abstract

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。

关键词: 电力信息系统, 负载-容量模型, 脆弱性评估, 复杂网络, 无标度网络

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.

Key words: power information system, load-capacity model, vulnerability assessment, complex network, scale-free network

马世英,郭逸豪,宋墩文,郭创新. 计及级联失效的电力信息系统脆弱性评估[J]. 发电技术, 2018, 39(3): 226-232.

Shiying MA,Yihao GUO,Dunwen SONG,Chuangxin GUO. Vulnerability Assessment of Power Information System Considering Cascading Failures[J]. Power Generation Technology, 2018, 39(3): 226-232.

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计及级联失效的电力信息系统脆弱性评估

Vulnerability Assessment of Power Information System Considering Cascading Failures

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