煤炭工程 ›› 2017, Vol. 49 ›› Issue (10): 137-140.doi: 10.11799/ce201710036

• 研究探讨 • 上一篇    下一篇

DG接入配电网的通信式自适应电流保护研究

孙婉婉   

  1. 中国矿业大学
  • 收稿日期:2016-12-25 修回日期:2017-02-06 出版日期:2017-10-25 发布日期:2018-03-22
  • 通讯作者: 孙婉婉 E-mail:772951583@qq.com

Research on communication-based adaptive current protection principle for distribution network with distributed generation

  • Received:2016-12-25 Revised:2017-02-06 Online:2017-10-25 Published:2018-03-22

摘要: 分布式电源(DG)并入配电网后,传统的接线结构由单电源供电网络变为了多电源供电网络,改变了系统的潮流分布,继而配电网继电保护出现不协调。针对DG并网后带来的误动、拒动和灵敏度降低等一系列问题,提出了一种通信式自适应电流保护方法,采用GOOSE over UDP实现信息传输并和自适应电流整定方法相结合,解决了DG接入配电网带来的问题。

Abstract: The power flow in distribution network can be changed by the connection of DG, the current is no long a single direction. Aiming at the problems such as malfunction, refusal and sensitivity of detrimental effects on the distribution system of DG,the method of a communication-based adaptive current protection must be proposed. Using the combination of GOOSE over UDP with adaptive setting of current protection,this protection solves those problems of detrimental effects on the distribution system of DG.

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