摘要
传统的配电线路断线故障自动检测方法启动保护条件的时间过长,导致检测结果不具备实时性。针对上述问题,设计了一种新的小型水电站配电线路断线故障自动检测方法。在确定单线故障、多线故障类型的基础上,通过识别电路中非基频率的暂态信号,判断小型水电配电线路是否发生断线故障。根据非基频率暂态信号的波动情况,进一步分析水电站配电线路断线故障发生的故障点。实验结果表明,该方法能够有效缩短检测时间,提高检测结果的实时性。
The traditional automatic detection method of distribution line break fault takes too long time to start the protection condition,which leads to the failure of real-time detection results.Aiming at the above problems,designs a new automatic fault detection method for distribution lines of small hydropower stations.On the basis of determining the type of single-line fault and multi-line fault,by identifying the transient signal of non-fundamental frequency in the circuit,it is judged whether the small hydropower distribution line has broken down or not.According to the fluctuation of non-base frequency transient signal,the fault points of power station distribution line break are further analyzed.The experimental results show that this method can effectively shorten the detection time and improve the real-time performance of the detection results.
作者
朱振洪
孙辉
马伟伟
ZHU Zhenhong;SUN Hui;MA Weiwei(State Grid Zhejiang Yuyao Power Supply Co.,Ltd.,Yuyao 315400,China;Yuyao Hongyu Transmission and Distribution Project Co.,Ltd.,Yuyao 315400,China)
出处
《电子设计工程》
2022年第6期104-108,共5页
Electronic Design Engineering
关键词
小型水电站
配电线路
断线故障检测
非基频率
small hydropower stations
distribution lines
wire breaking fault detection
fundamental frequency
