基于差分GPS的输电线形变的实时监测系统的研究

发布时间：2018-06-17 08:05

本文选题：差分GPS + 监测　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：输电线路的弧垂、风偏和舞动,均是严重威胁电网稳定性和可靠性的因素,这些都反映为输电线路的形变。基于以上原因,为了预防输电线路弧垂、风偏和舞动现象造成的危害,有必要监测输电线路的弧垂量,风偏、舞动轨迹和移动轨迹,此举对电力系统的安全运行具有非常重要的意义。为此,本文使用差分GPS技术,设计了输电线形变高精度实时监测系统。本文的主要工作如下:1.根据对输电线路高精度实时监测的要求,分析了监测系统具体需要达到的性能指标;在此基础上,利用差分GPS技术设计了测距精度可达厘米级的输电线路形变实时监测系统方案。2.为实现基于差分GPS实时监测系统方案,完成了监测系统所需的外围硬件电路的设计与实现和电路中单片机程序的编写调试;完成了系统的搭建和调试,并通过户外场地测试,验证了监测系统设计方案的可行性。3.在验证了系统方案可行基础上,设计了DGPS输出数据的处理方法;该方法在完成坐标数据的坐标系转换之后,使用卡尔曼滤波器处理转换后测量数据,减少了测量误差的影响,进一步提高了系统测量精度。
[Abstract]:The sag, wind deviation and galloping of transmission line are the factors that threaten the stability and reliability of power network seriously, which are reflected in the deformation of transmission line. For the above reasons, in order to prevent the harm caused by the sag, wind deviation and galloping of transmission line, it is necessary to monitor the sag amount, wind deviation, galloping track and moving track of transmission line. This is of great significance to the safe operation of power system. In this paper, a high precision real-time monitoring system of transmission line deformation is designed by using differential GPS technology. The main work of this paper is as follows: 1. According to the requirements of high precision real-time monitoring of transmission lines, the performance indexes of the monitoring system are analyzed. Using differential GPS technology, a real time monitoring system for transmission line deformation with ranging precision of centimeter level is designed. In order to realize the scheme of real-time monitoring system based on differential GPS, the design and implementation of peripheral hardware circuit and the programming and debugging of MCU program in the circuit are completed, the system is built and debugged, and the outdoor site test is carried out. The feasibility of the design scheme of the monitoring system is verified. 3. On the basis of verifying the feasibility of the system, the processing method of DGPS output data is designed, after the coordinate system transformation of coordinate data is completed, the measurement data is processed by Kalman filter, and the influence of measurement error is reduced. The measurement accuracy of the system is further improved.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM75;TP274

【共引文献】