基于分布式DTU的配电网母线保护

Bus-bar Protection of Distribution Network Based on the Distributed DTU

配电网母线故障概率较高,危害大,有必要配置专用的母线保护。结合目前分布式控制技术的发展,提出了基于分布式DTU的配电网母线保护的具体方案,就主动配电网的情况提出了变通方案。并对通信异常、开关失灵及TV断线等异常情况作了处理。本方案的实现方式不增加投资及建设成本,可在智能配电网中推广使用。

As the fault probability of distribution network bar is high,it is necessary to deploy dedicated bus-bar protection.Combined with the development of distributed control technology,a specific scheme of the distribution bus-bar protection based on the distributed DTU is put forward in this paper,and a flexible solution is proposed for active distribution network.It also dealt with abnormal situation such as communication exception,switch out of order and TV disconnection.The implementation of this scheme does not increase costs and can be promoted and used,in intelligent distribution network.