基于短距无线通信的低压台区线损异常检测方法

Detection Method for Line Loss Abnormality in Low-Voltage Platform Area Based on Short-Distance Wireless Communication

在线损异常检测阶段,由于传输阶段的时间开销较大,导致检测结果的同步性能较低,因此提出基于短距无线通信的低压台区线损异常检测方法。将Mimosa N5-360天线作为短距无线通信的执行载体,响应实际应用阶段对扩展频率范围的需求,设置Mimosa N5-360的工作频率范围为4.9~6.4 GHz,并自动配置与Mimosa与App自动配置,使得二者以集成的方式进行传输控制,在设置的传输模式中嵌入集成化的高精度全球定位系统(Global Positioning System,GPS)同步技术,以此实现线损异常检测过程中传输模式的构建。在检测过程中,通过匹配线损波动幅值与规律,结合传输数据在整个配网数据序列中的位置,利用时分多路复用(Time-Division Multiplexing,TDM)技术扩展客户端数量,实现对其的检测。在测试结果中,当线损异常为单相模式时,对应的检测时延稳定在0.4 s以内,当线损异常为三相模式时,对应的检测时延达到了0.8 s以内。

In the online loss anomaly detection stage,due to the high time cost in the transmission stage,the synchronization performance of the detection results is low.Therefore,a low-voltage substation area line loss anomaly detection method based on short distance wireless communication is proposed.Using the Mimosa N5-360 antenna as the execution carrier for short range wireless communication,in response to the demand for expanding the frequency range in practical application stages,the Mimosa N5-360 is set to operate in a frequency range of 4.9 to 6.4 GHz,and automatically configured with Mimosa and App to enable integrated transmission control between the two.Integrated high-precision Global Positioning System(GPS)synchronization technology is embedded in the set transmission mode,to achieve the construction of transmission mode in the process of line loss anomaly detection.During the detection process,by matching the amplitude and pattern of line loss fluctuations,combined with the position of transmitted data in the entire distribution network data sequence,Time-Division Multiplexing(TDM)access technology is used to expand the number of clients and achieve its detection.In the test results,when the line loss anomaly is in single-phase mode,the corresponding detection delay remains stable within 0.4 s.When the line loss anomaly is in three-phase mode,the corresponding detection delay reaches within 0.8 s.