| 引用本文: | 赵艾萱,黄 杨,宋 戈,等.5G独立组网模式下的配网保护配置策略及应用[J].电力系统保护与控制,2021,49(8):24-31.[点击复制] |
| ZHAO Aixuan,HUANG Yang,SONG Ge,et al.Configuration strategy and application of distribution network protection based on standalone 5G[J].Power System Protection and Control,2021,49(8):24-31[点击复制] |
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| 摘要: |
| 广覆盖高可靠低延时通信的5G网络，对打通配网终端设备之间的互联互通“最后一公里”问题有着极高的应用价值。为提升5G独立组网模式下配网保护的实用化水平，首先分析了配网保护的通信资源需求，并根据5G配网保护的总体架构，通过时钟信号和数据信号同源传输的方式提出了可靠性更高的对时方案。同时，在城区配网开展了差动保护和区域保护的应用，对比了两种保护方法在架空和电缆线路应用时的差异，结果表明架空线路宜采用区域保护，电缆线路可兼容差动保护和区域保护。 |
| 关键词: 5G独立组网 区域保护 差动保护 配电网 对时方案 |
| DOI：DOI: 10.19783/j.cnki.pspc.201160 |
| 投稿时间：2020-09-20修订日期：2021-03-11 |
| 基金项目:国家重点研发计划项目资助(2016YFB0900100)；国家电网科技项目资助(521904210087) |
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| Configuration strategy and application of distribution network protection based on standalone 5G |
| ZHAO Aixuan1,HUANG Yang1,SONG Ge1,ZHU Yu1,ZHANG Jianyu2,ZHANG Chenglong3 |
| (1. Chengdu Power Supply Company, State Grid Sichuan Electric Power Co., Ltd., Chengdu 610000, China; 2. XJ Group
Corporation, Xuchang 461000, China; 3. State Grid Energy Research Institute Co., Ltd., Beijing 102209, China) |
| Abstract: |
| The 5G network, with its characteristics of wide coverage, high reliability and low delay communication, has a high application value in solving the ‘last kilometer’ problem in interconnection between the terminal equipment of a distribution network. To improve the practical level of distribution network protection based on standalone 5G, the communication resource requirements of distribution network protection are analyzed first. Then, given the overall structure of 5G distribution network protection, a more reliable time synchronization scheme is proposed through the same source transmission of clock signal and data signal. At the same time, differential protection and regional protection are applied in an urban distribution network. The differences between the two protection methods in overhead lines and cables are analyzed. The results show that overhead lines are recommended for regional protection, and cables can be compatible with differential protection and regional protection.
This work is supported by the National Key Research and Development Program of China (No. 2016YFB0900100) and the Science and Technology Project of State Grid Corporation of China (No. 521904210087). |
| Key words: standalone 5G regional protection differential protection distribution network time synchronization scheme |
