Research on the application and economic benefits of 5G slice in the urban distribution network

doi:10.3969/j.issn.2097-0706.2024.01.009

Abstract

Abstract:

A cutting-edge municipal distribution network is the powerful backing of "zero power outage" and "zero flash". Considering the limitations of current municipal distribution networks，5G network technology offering three generic services， ultra-high bandwidth（eMBB）， ultra-reliable and ultra-low delay（uRLLC） and ultra-large scale connection （mMTC）， is taken to support the upgrading of new power system's communication needs and to solve the difficulties in service access. Special network application scenarios such as distribution automation， differential protection and precise negative control are constructed based on 5G slicing technology. Key requirements for communication are summarized to make the network management more flexible， efficient， economical and secure. According to the comparison of the data from three deployed communication networks， the economic benefits brought by the 5G slice to the power grid is more prominent. The feasibility of the 5G-enabled municipal distribution network is verified from technical applications and economic benefits.

Key words: municipal distribution network, new power system, exclusive network, security, economic benefit, 5G slicing

CLC Number:

TK01

YU Haibin, DONG Ye, WENG Jinde, HU Xinchen, YAN Wei, WU Difan. Research on the application and economic benefits of 5G slice in the urban distribution network[J]. Integrated Intelligent Energy, 2024, 46(1): 75-83.

Figures/Tables 16

Fig.1

Table 1

Table 2

Fig.2

Table 3

Fig.3

Table 4

Fig.4

Table 5

Fig.5

Table 6

Table 7

Fig.6

Fig.7

Fig.8

Fig.9

References 20

[1]	瞿水华, 郭钊杰, 许乐飞. 5G技术在智能电网中的实践和验证[J]. 供用电, 2021, 38(5):1-9,34.
	QU Shuihua, GUO Zhaojie, XU Lefei. Practice and verification of 5G technology in smart grid[J]. Distribution & Utilization, 2021, 38(5):1-9,34.
[2]	夏旭, 袁欣, 梁云, 等. 5G网络切片技术在智能电网的应用研究[J]. 电子技术应用, 2020, 46(1):17-21.
	XIA Xu, YUAN Xin, LIANG Yun, et al. Research on 5G network slicing enabling the smart grid[J]. Application of Electronic Technique, 2020, 46(1):17-21.
[3]	吕玉祥, 杨阳, 董亚文, 等. 5G技术在配电网电流差动保护业务中的应用[J]. 电信科学, 2020, 36(2):83-89. doi: 10.11959/j.issn.1000-0801.2020032
	LV Yuxiang, YANG Yang, DONG Yawen, et al. Application of 5G to current differential protection of distribution network[J]. Telecommunications Science, 2020, 36(2):83-89. doi: 10.11959/j.issn.1000-0801.2020032
[4]	于洋, 孙辉, 方照, 等. 配电网保护通信时延需求约束的5G通信切片接入优化研究[J]. 供用电, 2021, 38(5):29-34.
	YU Yang, SUN Hui, FANG Zhao, et al. Research on 5G communication slice access optimization with communication delay demand constraint of distribution network protection[J]. Distribution & Utilization, 2021, 38(5):29-34.
[5]	郑利斌, 陈文彬, 甄岩, 等. 基于5G切片网络的配电网差动保护研究[J]. 通信技术, 2022, 55(4):533-538.
	ZHENG Libin, CHEN Wenbin, ZHEN Yan, et al. Research on differential protection of distribution network based on 5G network slicing[J]. Communications Technology, 2022, 55(4):533-538.
[6]	梁柯, 邓雪波, 温永怡, 等. 现代电力通信网可靠性研究[J]. 数字通信, 2013, 40(5):31-33.
	LIANG Ke, DENG Xuebo, WEN Yongyi, et al. Modern electric power communication network reliability[J]. Digital Communications, 2013, 40(5):31-33.
[7]	郭帅. 5G网络切片在智能电网的应用探究[J]. 通讯世界, 2021, 28(3):44-45.
	GUO Shuai. Research on the application of 5G network slice in smart grid[J]. Telecom World, 2021, 28(3):44-45.
[8]	李娜, 杨振亿, 曾杰, 等. 基于5G的智能配电网业务场景应用分析[J]. 湖南电力, 2022, 42(2):98-104.
	LI Na, YANG Zhenyi, ZENG Jie, et al. Analysis of smart distribution network business scenario application based on 5G[J]. Hunan Electric Power, 2022, 42(2):98-104.
[9]	月球, 肖子玉, 杨小乐. 未来5G网络切片技术关键问题分析[J]. 电信工程技术与标准化, 2017, 30(5):45-50.
	YUE Qiu, XIAO Ziyu, YANG Xiaole. Key issues of future 5G network slicing technology[J]. Telecom Engineering Technics and Standardization, 2017, 30(5):45-50.
[10]	赵洋, 赵晓红, 任天成, 等. 5G通信在电力系统中的应用[J]. 山东电力技术, 2020, 47(10):6-10.
	ZHAO Yang, ZHAO Xiaohong, REN Tiancheng, et al. Application of 5G communication in power system[J]. Shandong Electric Power, 2020, 47(10):6-10.
[11]	周巍. 5G网络切片安全技术研究[J]. 移动通信, 2019, 43(10):38-42.
	ZHOU Wei. Study on 5G network slice security technologies[J]. Mobile Communications, 2019, 43(10):38-42.
[12]	何赞园, 王凯, 牛犇, 等. 基于安全威胁预测的5G网络切片功能迁移策略[J]. 计算机应用, 2019, 39(2):446-452. doi: 10.11772/j.issn.1001-9081.2018061399
	HE Zanyuan, WANG Kai, NIU Ben, et al. 5G network slicing function migration strategy based on security threat prediction[J]. Journal of Computer Applications, 2019, 39(2):446-452. doi: 10.11772/j.issn.1001-9081.2018061399
[13]	王全. 端到端5G网络切片关键技术研究[J]. 数字通信世界, 2018(3):52-53.
	WANG Quan. Research on key technologies of end to end 5G network slicing[J]. Digital Communication World, 2018(3):52-53.
[14]	粟欣, 龚金金, 曾捷. 面向5G网络切片无线资源分配[J]. 电子产品世界, 2017, 24(4):30-32,40.
	SU Xin, GONG Jinjin, ZENG Jie. Wireless resources allocation for 5G network slicing[J]. Outlook of Electronic Technology, 2017, 24(4):30-32,40.
[15]	王莹, 王雪, 刘嫚, 等. 面向智能电网的5G网络切片应用前瞻性思考[J]. 电力信息与通信技术, 2020, 18(8):1-7.
	WANG Ying, WANG Xue, LIU Man, et al. Prospective thinking of 5G network slicing application in smart grid[J]. Electric Power Information and Communication Technology, 2020, 18(8):1-7.
[16]	刘祖锋, 郑阔, 龚克凡, 等. 5G网络切片技术在智能电网的应用研究[J]. 中国新通信, 2020, 22(14):115.
	LIU Zufeng, ZHENG Kuo, GONG Kefan, et al. Research on application of 5G network slicing technology in smart grid[J]. China New Telecommunications, 2020, 22(14):115.
[17]	陈兆雁, 柴宜, 平常, 等. 基于5G边缘计算的可调节负荷互动技术研究[J]. 华电技术, 2021, 43(3): 9-13.
	CHEN Zhaoyan, CHAI Yi, PING Chang, et al. Research on adjustable load interaction technology based on 5G edge computing[J]. Huadian Technology, 2021, 43(3): 9-13.
[18]	丁叶强, 姚学恒, 陈向民, 等. 基于5G与实时电价的电动汽车需求侧管理研究[J]. 华电技术, 2021, 43(1): 66-70.
	DING Yeqiang, YAO Xueheng, CHEN Xiangmin, et al. Study on electric vehicle demand side management based on 5G and spot pricing[J]. Huadian Technology, 2021, 43(1): 66-70.
[19]	任宝军, 高志勇. 一种基于边缘计算的分散式站所终端方案的设计与实现[J]. 综合智慧能源, 2022, 44(6): 59-69. doi: 10.3969/j.issn.2097-0706.2022.06.007
	REN Baojun, GAO Zhiyong. Design and implementation of a terminal configuration scheme in a decentralized distribution station based on edge computing[J]. Integrated Intelligent Energy, 2022, 44(6): 59-69. doi: 10.3969/j.issn.2097-0706.2022.06.007
[20]	夏雪, 张瑞曦, 王磊, 等. 面向配电网数智化转型的高级配电管理系统研究与展望[J]. 综合智慧能源, 2022, 44(12): 33-39. doi: 10.3969/j.issn.2097-0706.2022.12.005
	XIA Xue, ZHANG Ruixi, WANG Lei, et al. Research and prospect of advanced distribution management system for the digital and intelligent transformation of distribution network[J]. Integrated Intelligent Energy, 2022, 44(12): 33-39. doi: 10.3969/j.issn.2097-0706.2022.12.005

常规通信技术	城市配电网应用场景	城市配电网应用局限性
PLC	高级计量	扩展性差、带宽有限、维护难度大
光纤/SDH/OTN	配电自动化	施工难度大、周期长、工艺复杂、成本高
无线	无人机巡检	带宽有限、安全风险高、覆盖面积有限
3G/4G/LTE	高级计量/无人机巡检/配电自动化	功耗高/缺乏服务质量保证/LTE全覆盖成本高
5G	智能配电网	灵活性高、延迟低、带宽高、可靠性高

电力5G切片	技术特征
E2E传输	切片之间相互隔离，传输、核心网等相关子域共同构成了5G网络切片包括传输网、核心网和接入网
按需定制、编排	根据电力多样化业务需求提供按需编排的网络能力，分布式特征可以依据具体业务需求在指定位置部署，以此满足业务时延的实际需求
自动化运维	传统单一大网络中实现全自动化较难，通过切片技术切割成多张安全隔离的电力通信专属网络，对切片生命周期有关环节操作进行分割，每个环节均能支持人工、全自动的处理方式，扁平化的网络会实现运维自动化
安全隔离	从逻辑视角看，切割出多张专用网络不会干扰相互间的切片业务，根据所需应用场景配置相应的切片网络

项目	需求
带宽/（Mbit·s^-1）	≥2
时延/µs	集中式FA：遥测≤10 000，遥信<10，遥控<50；智能分布式FA：<20 000；设备到设备（Device-to-Device，D2D）单向时延
抖动/ms	≤15
可靠性/%	99.999
安全隔离	Ⅰ/Ⅱ区业务和Ⅲ/Ⅳ区物理隔离，资源独享（E2E硬切片）
5G终端需求	可用CPE（以太网/RJ45/RS232/RS485接口）

项目	光纤通信动作时间		5G通信动作时间		动作时间差
项目	STU3	STU4	STU1	STU2	S1-3	S2-4
装置记录	42.54	40.49	49.85	48.69	7.31	8.00
录波记录	52.31	50.31	59.92	58.46	7.61	8.15

项目	需求
带宽/（Mbit·s^-1）	≥2
时延/ms	<15（D2D单向时延，需要UPF下沉）
抖动/μs	±50
可靠性/%	99.999
安全隔离	Ⅰ/Ⅱ区业务和Ⅲ/Ⅳ区物理隔离，资源独享（E2E硬切片）
5G终端需求	可用CPE（以太网或RS485接口）