Scholarlink

There are emerging challenges posed by the integration of a large number of distributed generations (DGs) into power distribution networks. Thus this paper proposes a novel protection that combines negative-sequence quantity sorting with 5G communication. For information exchange, a 5G communication method with timestamps is proposed, further reducing the synchronous communication requirements of the proposed protection scheme by leveraging the communication characteristics of distribution networks. Simulation results demonstrate the successful application of the proposed criteria to lines with unpredictable branches without relying on data synchronization communication. The new protection scheme significantly enhances fault clearance speed, ensuring that the fault’s maximum response time remains within 50 ms. In comparison to amplitude differential protection, the proposed protection exhibits stronger adaptability and operational stability against unpredictable branches.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The Principle and Implementation of Protection for Active Distribution Network Adapting to DG Arbitrary Access

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Benshuo Gu,
  • Xiangning Lin,
  • Weijie He,
  • Chunhan Bai,
  • Lanxuan Guo,
  • Wenhao Yang

摘要

There are emerging challenges posed by the integration of a large number of distributed generations (DGs) into power distribution networks. Thus this paper proposes a novel protection that combines negative-sequence quantity sorting with 5G communication. For information exchange, a 5G communication method with timestamps is proposed, further reducing the synchronous communication requirements of the proposed protection scheme by leveraging the communication characteristics of distribution networks. Simulation results demonstrate the successful application of the proposed criteria to lines with unpredictable branches without relying on data synchronization communication. The new protection scheme significantly enhances fault clearance speed, ensuring that the fault’s maximum response time remains within 50 ms. In comparison to amplitude differential protection, the proposed protection exhibits stronger adaptability and operational stability against unpredictable branches.