配电网故障定位信号源远程监控系统设计与实现

发布时间：2018-05-30 04:28

本文选题：配电网 + 故障定位　；参考：《华北电力大学》2017年硕士论文

【摘要】：配电网单相接地故障为配电网主要故障,当发生单相接地故障以后,配电网单相接地故障定位信号源会向故障相注入恒流信号,之后工作人员会手持探测器沿线路探测,使用二分法逐渐缩小故障范围,并最终找到故障点。但是,在配电网故障定位过程中,因配网环境本身的复杂性,给信号的探测带来了不便,严重影响了故障定位的进度,这就需要对注入信号进行远程调节。而考虑到手机客户端本身的移动性和便捷性,通过手机客户端应用程序实现对信号源的远程控制是当前最理想的方式。本文的主要工作为配电网故障定位信号源远程监控系统的设计与实现,即通过Android手机客户端应用程序对配电网故障定位信号源进行远程监控。主要内容包括两方面:一方面为对配电网故障定位信号源硬件电路的改进和设计。即对原有产品进行升级,重新布局元器件并优化系统结构和性能,进一步缩小产品体积并提高产品稳定性;增加GPRS模块,使其具备网络通信的功能,通过具有固定IP的云服务器对数据进行转发,保证其远程可控制性。另一方面为对Android手机客户端应用程序进行设计和开发,包括软件UI设计、客户端功能设计和数据传输协议设计等工作。手机客户端的主要功能包括用户登录功能、网络通信功能和报警功能。通过网络通信功能,手机客户端可以向信号源发送控制命令并获取信号源实时运行状态信息,可以实现对信号源的开始触发、停止触发、注入电流大小调节和数据召唤等功能。通过具有固定IP的云服务器对数据进行转发,实现手机客户端和信号源的双向通信,进而保证了信号源远程监控系统的实现,保障了故障定位的有效性和可靠性。
[Abstract]:The single-phase grounding fault of distribution network is the main fault in the distribution network. When the single-phase grounding fault occurs, the source of single-phase grounding fault location signal will inject constant current signal into the fault phase, and then the workers will carry a detector to detect the road along the line. Use dichotomy to narrow down the fault range gradually, and finally find fault point. However, in the process of fault location in distribution network, because of the complexity of distribution network environment, it brings inconvenience to signal detection and seriously affects the progress of fault location, which requires remote adjustment of injection signal. Considering the mobility and convenience of the mobile phone client, remote control of the signal source through the mobile phone client application is the most ideal way. The main work of this paper is the design and implementation of remote monitoring system for fault location signal source in distribution network, that is, remote monitoring of fault location signal source in distribution network through Android mobile phone client application program. The main contents include two aspects: on the one hand, the improvement and design of hardware circuit for fault location signal source in distribution network. That is to upgrade the original product, rearrange the components and optimize the system structure and performance, further reduce the volume of the product and improve the product stability, and add the GPRS module to make it have the function of network communication. The data is forwarded by the cloud server with fixed IP to ensure its remote controllability. On the other hand, it designs and develops Android mobile phone client application program, including software UI design, client function design and data transfer protocol design. The main functions of mobile phone client include user login function, network communication function and alarm function. Through the network communication function, the mobile phone client can send the control command to the signal source and obtain the real-time running state information of the signal source. It can realize the functions of starting trigger, stopping triggering, adjusting the current size of injection and calling data. Through the cloud server with fixed IP to transmit the data, the two-way communication between the mobile phone client and the signal source is realized, and the realization of the remote monitoring system of the signal source is ensured, and the validity and reliability of the fault location are guaranteed.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP277;TM732

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