文章摘要
吴亦贝,李俊娥,陈汹,等.大规模可控负荷被恶意控制场景下的配电网风险分析[J].电力系统自动化. DOI: 10.7500/AEPS20171026017.
WU Yibei,LI June,CHEN Xiong, et al.Risk Analysis of Distribution Network with Large-scale Controllable Loads being attacked[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20171026017.
大规模可控负荷被恶意控制场景下的配电网风险分析
Risk Analysis of Distribution Network with Large-scale Controllable Loads being attacked
DOI:10.7500/AEPS20171026017
关键词: 可控负荷  风险  攻击模型  供电可靠性  电能质量
KeyWords: Controllable loads  Risk  Attack model  Power supply reliability  Power quality
上网日期:2018-04-10
基金项目:国家重点研发计划,国家自然科学基金,国家电力公司科技项目
作者单位E-mail
吴亦贝 武汉大学 wyb_2929@163.com 
李俊娥 武汉大学 jeli@whu.edu.cn 
陈汹 南瑞集团有限公司(国网电力科学研究院有限公司) chenxiong@sgepri.sgcc.com.cn 
刘权莹 武汉大学 854339487@qq.com 
王宇 武汉大学 564943524@qq.com 
罗剑波 南瑞集团有限公司(国网电力科学研究院有限公司) luojianbo@sgepri.sgcc.com.cn 
倪明 南瑞集团有限公司(国网电力科学研究院有限公司) ni-ming@sgepri.sgcc.com.cn 
摘要:
      用户对负荷的远程可控性及用户侧信息安全防护措施的脆弱性,使得可控负荷极易被攻击者恶意控制,可能出现大规模负荷的同投同退或频繁投退现象,从而威胁电网的安全稳定运行。本文首先分析了各类可控负荷面临的安全威胁与攻击成本,考虑网络攻击因素,提出了含有可控负荷的配电网控制模型;建立了可控负荷被恶意控制的攻击模型,以“开”“关”控制为基础,定义了可控负荷可能遭受的三类攻击,并通过实测和统计分析,研究了网络时延对攻击模型参数的影响。在上述工作的基础上,选取了合适的场景,仿真分析了可控负荷遭受恶意控制对配电网供电可靠性和电能质量的影响,证明了被控负荷达到一定规模后会给配电网带来风险,并针对不同攻击类型给出了风险后果。
Abstract:
      The remote controllability of loads and the weakness of user-side information security protection make it easy that controllable loads (CLs) are maliciously controlled by attackers. This might influence the safe and stable operation of power grid. This paper analyzes security risk brought by different kinds of CLs, proposes a control model of distribution network with CLs considering the cyber-attack, establishes an attack model of CLs being maliciously controlled, and defines three kinds of attack that CLs may suffer on the basis of “on” and “off” control. Then, by measurement and statistical analysis, the influence of network delay on attack model is studied. Finally, choosing appropriate scenes, this paper simulates and analyzes the influence on distribution network when CLs suffers malicious control, summarizes the risk of distribution network reliability of power supply and power quality when the controlled loads reach a certain scale, and gives corresponding risk consequence .
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