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基于多阶段传输的智能变电站安全通信策略
作者:
作者单位:

1.湖南大学电气与信息工程学院,湖南省长沙市 410082;2.全球能源互联网研究院有限公司(南京),江苏省南京市 210003

摘要:

以太网技术的应用促进了智能变电站信息共享的发展,但信息的传输面临着诸多风险,基于IEC 62351标准的智能变电站对信息传输安全提出了新的要求。目前,智能变电站通信报文存在非法窃取、篡改、拒绝服务、抵赖和重放攻击等安全威胁,针对此问题,文中提出了一种基于多阶段传输的安全通信策略。该策略通过双序列函数实现通信主体身份的双向认证,利用双序列函数产生的随机因子校验报文的新鲜性,结合数字签名算法检验报文的完整性和解决主体的抵赖威胁。进一步地,以D2-1型变电站星形和环形网络下两种母线故障场景为例,对所提策略的延时进行定量计算和OPNET仿真验证,得到了两种网络结构下安全报文进行多阶段传输的端对端通信延时。仿真结果表明,所提通信策略在满足智能变电站通信实时性要求的同时有效提高了通信报文的安全性。

关键词:

基金项目:

国家自然科学基金资助项目(51777062)。

通信作者:

作者简介:

周元刚(1996—),男,硕士研究生,主要研究方向:电网信息安全、变电站数据加解密。E-mail:2545066372@hnu.edu.cn
刘绚(1985—),男,通信作者,博士,教授,博士生导师,主要研究方向:电力系统网络安全、配电网自动化、人工智能在电力系统中的应用等。E-mail:xliu@hnu.edu.cn
张波(1985—),男,博士,教授级高级工程师,主要研究方向:电力系统网络安全、漏洞智能挖掘等。E-mail:zhangbo@geiri.sgcc.com.cn


Security Communication Strategy for Smart Substation Based on Multi-stage Transmission
Author:
Affiliation:

1.College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;2.Global Energy Interconnection Research Institute Co., Ltd. (Nanjing), Nanjing 210003, China

Abstract:

The application of Ethernet technology has promoted the development of information sharing in smart substations, but the transmission of information faces many risks. Smart substations based on the IEC 62351 standard have new requirements for the security of information transmission. At present, there are security threats such as illegal theft, tampering, denial of service, denial and replay attacks on communication messages in smart substations. To solve this problem, a security communication strategy based on multi-stage transmission is proposed. The strategy realizes the two-way authentication of the identity of the communication subject through the double sequence function, uses the random factor generated by the double sequence function to check the freshness of the message, and combines the digital signature algorithm to verify the integrity of the message and solve the subject’s denial threat. Furthermore, the delay of the proposed strategy is quantitatively calculated and validated by the OPNET simulation in two cases that the bus faults occur in the star network and ring network in the D2-1-type substation, and the end-to-end communication delays of the multi-stage transmission of secure messages in the two network structures are obtained. The simulation results show that the proposed communication strategy can effectively improve the security of communication messages while meeting the real-time communication requirements in smart substations.

Keywords:

Foundation:
This work is supported by National Natural Science Foundation of China (No. 51777062).
引用本文
[1]周元刚,刘绚,张波.基于多阶段传输的智能变电站安全通信策略[J].电力系统自动化,2021,45(22):105-114. DOI:10.7500/AEPS20210414004.
ZHOU Yuangang, LIU Xuan, ZHANG Bo. Security Communication Strategy for Smart Substation Based on Multi-stage Transmission[J]. Automation of Electric Power Systems, 2021, 45(22):105-114. DOI:10.7500/AEPS20210414004.
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  • 收稿日期:2021-04-14
  • 最后修改日期:2021-06-24
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  • 在线发布日期: 2021-11-16
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