Research on differential protection control method for distribution network with DG based on 5G communication technology

ZHENG Jiewen; GUO Qiang; SHEN Lisheng; YAO Haiyan; ZHAO Qianpeng; HUANG Yuanjun

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Research on differential protection control method for distribution network with DG based on 5G communication technology

更新时间：2026-04-19

- Research on differential protection control method for distribution network with DG based on 5G communication technology
- Vol. 63, Issue 4, (2026)
- 作者机构：
  
  1. 国网浙江省电力有限公司杭州市余杭区供电公司，浙江余杭,311100
  2. 杭州电力设备制造有限公司余杭群力成套电气制造分公司，浙江临平,311100
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2026
- 稿件说明：
移动端阅览
ZHENG Jiewen, GUO Qiang, SHEN Lisheng, et al. Research on differential protection control method for distribution network with DG based on 5G communication technology[J]. 2026, 63(4).
DOI：

ZHENG Jiewen, GUO Qiang, SHEN Lisheng, et al. Research on differential protection control method for distribution network with DG based on 5G communication technology[J]. 2026, 63(4). DOI：

摘要

针对现有含分布式电源配电网差动保护方法存在的通信时延和时延抖动等问题，提出了基于5G（5th-Generation）通信技术的配电网差动保护结构，将5G通信技术与改进的时间动态弯曲算法相结合用于含分布式电源配电网差动保护。通过引入加权函数和全局路径约束策略优化时间动态弯曲算法，提高保护可靠性和计算速度。通过算例分析验证了所提保护方法的优越性。结果表明，所提方法在差动保护中可以快速地进行保护，有效降低了通信时延、时延抖动和保护动作时间

能够适应未来比较复杂的含分布式电源配电网结构，为 5G+智慧电力的发展提供一定的助力。

Abstract

In response to the communication delay and delay jitter issues of existing differential protection methods for distribution network with distributed generation (DG)

a differential protection structure for distribution network based on 5th-Generation (5G) communication technology has been proposed

combining 5G communication technology with improved time dynamic bending algorithm for differential protection in distribution network with distributed power sources. The dynamic time warping algorithm is optimized by introducing weighted functions and global path constraint strategies

improving protection reliability and calculation speed. The superiority of the proposed protection method is verified through example analysis. The results indicate that

the proposed method can quickly perform protection in differential protection

effectively reducing communication delay

delay jitter and protection action time

which is capable of adapting to future complex distribution network structures with distributed power sources

providing certain assistance for the development of 5G + smart electricity.

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