输电线路短路故障定位系统的研究

发布时间：2018-02-06 01:37

本文关键词： 输电线路故障定位 ARM 光纤网络　出处：《安徽理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：现代社会中,无论是工业实用还是民用,都要求更优质的、可靠性更高的、稳定性能更好的电能。然而,输电线路不像其它电力系统组件,它暴露在环境中,所发生故障的几率要大于其它电力系统中其它组成部分。而在所有可能发生的输电线路故障中,短路故障占到很大比重,当线路中发生这样的故障时,瞬时线路中的电流将成倍增长,引起线路发热,造成不必要的损失。为了降低故障所带来的人员伤害及经济损失,能够快速定位发生故障的精确地点,帮助检修人员快速的到达故障发生地点进行抢修,因此,迅速的对短路故障发生位置进行定位,对整个电力系统安全运行是非常有必要的。本文采用双端线路短路故障定位法,利用输电线路两端的以高速处理芯片ARM为核心的电路采集器采样处理线路参数数据,数据经过处理后经光纤网络发送至微处理器,得出故障点距离,实现线路故障的定位。变电站的同步授时装置提供精确授时功能,保证了采样精度。高速处理芯片ARM能够提高数据处理速度,满足电力系统中快速处理的要求。光纤以太网络实现数据高速传播,增加了系统的高效性、精确性和稳定性。在本研究设计中,对输电线路短路故障采取双端定位与现代高速处理器结合的方法,经过光纤通信快速信息传输而达到本设计的要求,在最后对算法进行模拟。
[Abstract]:In modern society, both industrial and civil use require higher quality, higher reliability and better stability of electricity. However, transmission lines are not like other power system components, they are exposed to the environment. The probability of failure is greater than that of other parts of the power system. And of all possible transmission line failures, short-circuit faults account for a large proportion, and when such faults occur in the line, The current in the instantaneous line will multiply, causing the line to heat up and causing unnecessary losses. In order to reduce the human and economic losses caused by the fault, it is possible to quickly locate the exact location where the fault occurred. Therefore, it is necessary to locate the location of the short circuit fault quickly, which is very necessary for the safe operation of the whole power system. The circuit collector with high-speed processing chip ARM as the core at both ends of transmission line is used to sample and process line parameter data. After processing, the data is sent to the microprocessor via optical fiber network, and the fault point distance is obtained. The synchronous timing device of substation provides accurate time service function, which ensures the sampling accuracy. High speed processing chip ARM can improve the speed of data processing. To meet the requirements of fast processing in power system. Optical Ethernet network to achieve high-speed data transmission, increasing the system's efficiency, accuracy and stability. In this study, The short circuit fault of transmission line is designed by combining dual terminal location with modern high speed processor. After fast information transmission in optical fiber communication, the algorithm is simulated at the end of the paper.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM755

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