基于DTS综合平台系统的关键算法研究与实现

发布时间：2018-11-12 12:51

【摘要】：分布式光纤传感(DTS)技术今年在传感领域中独树一帜,具有监测广、适应性强等优点,应用趋广,特别是在电力系统中的应用,已凭借其优越性快速实现了商用化,市场在逐步扩大。本文主要研究电力系统中DTS系统的关键算法并设计系统软件。本文首先对拉曼光纤测温原理进行了研究,并给出了提升信噪比的编码方法,结合了混合滤除噪声的算法,提升了温度测量系统的稳定性和准确性。其次,本文对电力电缆的模型进行了必要的阐述,给出了基于热路法的缆芯温度和载流量的计算方法,结合试验选取的电缆型号和参数给出计算结果。第三,本文对DTS系统软件的架构进行了阐述,结合具体的需求分析给出了针对不同需求设计的模块的开发方法,对本地端的驱动、系统的数据解析、网络技术、图形显示和地图监测、数据库模块进行了详细的介绍。最后,本文尝试对实际工程中DTS系统光纤的铺设方法进行了改造,理论上证明了这种方法对提升精度的重要性。
[Abstract]:Distributed fiber optic sensing (DTS) technology is unique in the field of sensing this year. It has many advantages such as wide monitoring, strong adaptability and so on. Especially in power system, it has been commercialized rapidly with its advantages. The market is gradually expanding. This paper mainly studies the key algorithm of DTS system in power system and designs the system software. In this paper, the principle of Raman fiber temperature measurement is studied, and the coding method of raising SNR is given. The stability and accuracy of temperature measurement system are improved by combining the algorithm of mixed filtering noise. Secondly, the model of power cable is described in this paper, and the calculation method of cable core temperature and load current based on hot path method is given. The calculation results are given in combination with the cable model and parameters selected in the test. Third, this paper describes the architecture of DTS system software, combining with specific requirements analysis, gives the development method of modules designed for different requirements, the driver of local side, the data analysis of system, the network technology. Graphic display and map monitoring, database module is introduced in detail. Finally, this paper attempts to reconstruct the fiber laying method of DTS system in practical engineering, which theoretically proves the importance of this method to improve the accuracy.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN253

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