一种基于<b>UDP</b>的电力广域保护系统可靠通信方法

袁凯; 李俊娥; 刘开培; 陆秋余; 倪明; 罗剑波

doi:10.16383/j.aas.c180641

一种基于UDP的电力广域保护系统可靠通信方法

doi: 10.16383/j.aas.c180641

袁凯^1,,
李俊娥^{1, 2,},
刘开培^1,,
陆秋余^{1, 2,},
倪明^{3, 4, 5,},
罗剑波^{3, 4, 5,}

1.
武汉大学武汉 430072
2.
空天信息安全与可信计算教育部重点实验室武汉 430072
3.
南瑞集团有限公司(国网电力科学研究院有限公司) 南京 211106
4.
国电南瑞科技股份有限公司南京 211106
5.
智能电网保护和运行控制国家重点实验室南京 211106

基金项目: 国家自然科学基金(51977155, 51377122), 国家电网公司科技项目(针对网络攻击的电网信息物理系统协同运行态势感知与主动防御方法研究)资助

详细信息

作者简介:
袁凯：武汉大学电气与自动化学院博士研究生. 主要研究方向为智能电网通信QoS保障与可靠性分析.E-mail: aishen890523@126.com

李俊娥：武汉大学国家网络安全学院/空天信息安全与可信计算教育部重点实验室教授. 2004年获得武汉大学计算机应用技术专业博士学位. 主要研究方向为网络体系结构, 网络安全, 信息物理系统和电力工业控制安全. 本文通信作者.E-mail: jeli@whu.edu.cn

刘开培：武汉大学电气与自动化学院教授. 2001年获武汉大学计算机应用技术专业博士学位. 主要研究方向为直流输电, 可再生能源和智能电网, 电能质量和数据分析.E-mail: kpliu@whu.edu.cn

陆秋余：武汉大学国家网络安全学院硕士研究生. 主要研究方向为智能电网通信QoS保障和网络安全. E-mail: luqiuyu_0623@163.com

倪明：国电南瑞科技股份有限公司研究员级高级工程师, 电网规划分析首席专家. 1996年获得东南大学电气工程博士学位. 主要研究方向为信息物理电力系统, 电力系统安全稳定控制. E-mail: ni-ming@sgepri.sgcc.com.cn

罗剑波：南瑞集团有限公司/国家电网电力科学研究院研究员级高级工程师. 主要研究方向为电网安全稳定分析, 综合防御与控制.E-mail: luojianbo@sgepri.sgcc.com.cn

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出版历程
- 收稿日期: 2018-09-30
- 录用日期: 2019-05-08
- 网络出版日期: 2021-07-27
- 刊出日期: 2021-07-27

A Reliability Communication Approach for Power Wide Area Protection System Based on UDP

YUAN Kai^1
,,
LI Jun-E^{1, 2
,},
LIU Kai-Pei^1
,,
LU Qiu-Yu^{1, 2
,},
NI Ming^{3, 4, 5
,},
LUO Jian-Bo^{3, 4, 5
,}

1.
Wuhan University, Wuhan 430072
2.
Key Laboratory of Aerospace Information Security and Trusted Computing, Ministry of Education, Wuhan 430072
3.
NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106
4.
NARI Technology Co. Ltd., Nanjing 211106
5.
State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106

Funds: Supported by National Natural Science Foundation of China (51977155, 51377122) and the Science and Technology Project of State Grid Corporation of China (Research on Cooperative Situation Awareness and Active Defense Method of Cyber Physical Power System for Cyber Attack)

More Information

Author Bio:
YUAN Kai　Ph.D. candidate at the School of Electrical Engineering and Automation, Wuhan University. His research interest covers QoS guarantee and reliability analysis for communications of smart grid

LI Jun-E　Professor at the School of Cyber Science and Engineering, Wuhan University. She received her Ph.D. degree in computer application technology from Wuhan University in 2004. Her research interest covers network architecture, cyber security, cyber-physical systems, and the security of power industrial control systems. Corresponding author of this paper

LIU Kai-Pei　Professor at the School of Electrical Engineering and Automation, Wuhan University. He received his Ph.D. degree in computer application technology from Wuhan University in 2001. His research interest covers DC transmission, renewable energy and smart grid, power quality, and data analysis

LU Qiu-Yu　Master student at the School of Cyber Science and Engineering, Wuhan University. Her research interest covers QoS guarantee for communications of smart grid and cyber security

NI Ming　Senior engineer at NARI Technology Co. Ltd. and principal expert for grid planning. He received his Ph.D. degree in electrical engineering from Southeast University in 1996. His research interest covers cyber physical power systems (CPPSs), and safety and stability control of power systems

LUO Jian-Bo　Senior engineer at NARI Group Corporation/State Grid Electric Power Research Institute. His research interest covers analysis, comprehensive defense, and control for safety and stability of power systems

摘要

摘要:
电力广域保护系统从点到点通信逐步走向网络化通信, 如何在拥塞状态下保障业务的实时性和可靠性, 成为亟待解决的问题. 针对传输控制协议(Transmission control protocol, TCP)不能保障实时性以及用户数据报协议(User datagram protocol, UDP)不能保障可靠性的问题, 本文提出一种联合应用层纠错、检错和重发机制的UDP传输方案, 在提供低时延传输服务的同时也能保障报文的可靠性. 考虑到算法的复杂性, 选择本原BCH (Bose-Chaudhuri-Hocquenghem)码作为纠错编码算法, 设计了编码分组方法, 并通过实验验证了分组方法的正确性; 对增加纠错机制后的报文实时性进行了理论分析和仿真验证; 为了解决突发误码和丢包情况下的可靠性问题, 进一步设计了应用层检错和重发机制, 并分析了时延. 分析表明, 在应用层增加本文所设计的纠错、检错和重发机制后增加的时延几乎可以忽略不计. 最后给出了所提方法的联合应用算法, 并进行了可靠性分析, 结果表明本文方案的可靠性高于其他UDP传输方案.
- 电力广域保护 /
- 网络通信 /
- 纠错 /
- 实时性 /
- 可靠性
Abstract:
The communications of a wide area protection system are transforming from point-to-point to networked connections. Guaranteeing the real-time and reliability of communication services under a congestion state has become an urgent issue. Aiming at the problem of transmission control protocol (TCP) cannot guarantee real-time and user datagram protocol (UDP) cannot guarantee reliability, a UDP transmission scheme based on the mechanism of combining error correction, error detection, and retransmission for application messages is proposed. This scheme can provide low delay and reliable transmission service for applications. An original BCH (Bose-Chaudhuri-Hocquenghem) code is selected as the error correction coding algorithm considering the complexity of the algorithms, and a coding grouping method is designed. An experiment to verify the grouping method is also presented. We conduct theoretical analysis and simulations to verify the real-time of a message after employing the error correction mechanism. To provide reliability under the condition of having burst errors and packet loss, the mechanisms of error detection in the application layer and datagram retransmission are further designed, and their real-time performance is analyzed. The analysis reveals that the increased delays are nearly negligible when exploring the mechanisms designed in this study of error correction, error detection, and retransmission. Moreover, this paper presents a comprehensive application algorithm of the scheme and analyzes its reliability. The result shows that the reliability provided by the proposed scheme is higher than the other UDP transmission scheme.
- Power wide area protection /
- network communication /
- error correction /
- real-time /
- reliability
注释:

1) 收稿日期 2018-09-30 录用日期 2019-05-08 Manuscript received September 30, 2018; accepted May 8, 2019 国家自然科学基金 (51977155, 51377122), 国家电网公司科技项目 (针对网络攻击的电网信息物理系统协同运行态势感知与主动防御方法研究) 资助 Supported by National Natural Science Foundation of China (51977155, 51377122) and the Science and Technology Project of State Grid Corporation of China (Research on Cooperative Situation Awareness and Active Defense Method of Cyber Physical Power System for Cyber Attack) 本文责任编委陈积明 Recommended by Associate Editor CHEN Ji-Ming 1. 武汉大学武汉 430072 2. 空天信息安全与可信计算教育部重点实验室武汉 430072 3. 南瑞集团有限公司 (国网电力科学研

2) 究院有限公司) 南京 211106 4. 国电南瑞科技股份有限公司南京 211106 5. 智能电网保护和运行控制国家重点实验室南京 211106 1. Wuhan University, Wuhan 430072 2. Key Laboratory of Aerospace Information Security and Trusted Computing, Ministry of Education, Wuhan 430072 3. NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106 4. NARI Technology Co. Ltd., Nanjing 211106 5. State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106

HTML全文

图 1 纠错算法实验程序流程图

Fig. 1 Flowchart of the experiment program for error correction algorithm

下载: 全尺寸图片幻灯片

图 2 一个省级电力调度数据网络结构

Fig. 2 The structure of a provincial power dispatch data network

下载: 全尺寸图片幻灯片

图 3 网络畅通时采用TCP和UDP的业务最大时延

Fig. 3 Maximum delays of messages using TCP and UDP when the network is uncongested

下载: 全尺寸图片幻灯片

图 4 网络拥塞时采用TCP和UDP的业务最大时延

Fig. 4 Maximum delays of messages using TCP and UDP when the network is congested

下载: 全尺寸图片幻灯片

图 5 网络畅通时TCP和UDP传输下报文的端到端最大时延

Fig. 5 Maximum end-to-end delays in TCP and UDP transmission modes when network is uncongested

下载: 全尺寸图片幻灯片

图 6 4种拥塞流量时TCP和UDP报文的端到端最大时延

Fig. 6 Maximum end-to-end delay of TCP and UDP packets in four types of congestion traffic

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图 7 报文连续发送N次的总时延构成

Fig. 7 Composition of the total delay when the message is transmitted N copies

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表 1 一种本原BCH码分组方法

Table 1 A grouping method of original BCH code

应用层报文长度 (byte)	分组数	(n, k)	每组加入的纠错码长度 (bit)	每组纠错位数 (bit)	总纠错位数 (bit)	参考信道误比特数
1~59	1	[511, 493]	18	2	2	1
60~115	4	[255, 247]	8	1	4	1
116~231	8	[255, 247]	8	1	8	2
232~462	16	[255, 247]	8	1	16	4
463~1400	64	[255, 247]	8	1	64	12

下载: 导出CSV

表 2 本文方案与其他方案的对比

Table 2 Comparison of the proposed scheme with others

通信方案	纠错	检错	重传	可靠性	实时性
本文方案	有	有	有	高	高
文献 [16] 方案	无	无	有	中	高
文献 [17] 方案	无	有	无	低	高
标准 UDP 传输方案	无	无	无	低	高

下载: 导出CSV

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