输电线路在线监测融合通信组网方案研究

发布时间：2018-03-10 00:31

本文选题：输电线路　切入点：在线监测　出处：《华北电力大学(北京)》2017年硕士论文　论文类型：学位论文

【摘要】：近几年,电力状态检修和坚强智能电网建设的发展,使得输电线路在线监测系统得到迅猛发展。输电线路担负着西电东送等任务,对国民经济发展起着至关重要的作用。但是随着在线监测系统的发展,通信手段逐渐成为了系统的发展瓶颈,如何更好地进行系统的通信,保证数据安全可靠传输,对在线监测系统的发展和智能电网的建设有着长远的影响。单一的通信方式不能满足智能电网对于数据传输高带宽、大容量和高可靠性等要求,融合通信组网方案借助其显著的特点,发挥着越来越重要的作用。融合通信组网可以把有线/无线技术高度灵活的覆盖能力和光纤技术的高带宽、高可靠性,最紧密地融合到一起,具有很大的应用价值。首先,本文研究了在线监测系统的网络结构、节点与链路、功能等,并对比分析了公网、光纤、专网和卫星通信技术的带宽、可靠性等;然后在5.8G关键技术的基础上,重点分析OFDM抗干扰性能,并用Matlab进行仿真;结合5.8G和OPGW数据融合方法,提出5.8G光纤融合通信组网方案,并对融合通信模块、节点、主站和供电装置进行设计;最后在候桥330kV变电站进行试点应用,用Linkplanner软件进行链路仿真和链路预算,分析证明了组网方案的可行性。本文提出的5.8G光纤融合通信组网方案,不仅结合了光纤的大容量、高带宽、远距离等优势,而且利用了5.8G的免申请、组网灵活、传输高效等优点,解决了没有光纤接入点或公网通信盲区问题,满足所有高清视频的带宽要求,保证输电线路在线监测系统的实时可靠运行,对其建设和运维有一定的参考价值。
[Abstract]:In recent years, with the development of power condition maintenance and the construction of strong smart grid, the on-line monitoring system of transmission line has been developing rapidly. However, with the development of on-line monitoring system, communication means has gradually become the bottleneck of the development of the system. It has a long-term impact on the development of on-line monitoring system and the construction of smart grid. A single communication mode can not meet the requirements of smart grid for high bandwidth, large capacity and high reliability of data transmission. With the help of its remarkable characteristics, the converged communication networking scheme is playing a more and more important role. The fusion communication network can bring the high flexible coverage capability of wired / wireless technology and the high bandwidth and high reliability of optical fiber technology. First of all, this paper studies the network structure, nodes and links, functions and so on of the on-line monitoring system, and compares and analyzes the bandwidth of public network, optical fiber, private network and satellite communication technology. Based on the key technology of 5.8G, the paper analyzes the anti-jamming performance of OFDM and simulates it with Matlab. Combining with the data fusion method of 5.8G and OPGW, a 5.8G optical fiber fusion communication network is proposed, and the communication module, node, etc. The main station and the power supply device are designed. Finally, the pilot application is carried out in the Hou Qiao 330 kV substation. The link simulation and link budget are carried out with Linkplanner software, and the feasibility of the networking scheme is analyzed and proved. The 5.8G fiber optic fiber fusion communication networking scheme is proposed in this paper. It not only combines the advantages of optical fiber, such as large capacity, high bandwidth and long distance, but also makes use of 5.8G 's advantages such as no application, flexible networking, high transmission efficiency, etc., which solves the problem that there is no optical fiber access point or communication blind area of public network. It can meet the bandwidth requirements of all HD video and ensure the real-time and reliable operation of the transmission line on-line monitoring system. It has certain reference value for its construction and operation and maintenance.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM75;TN929.11

【参考文献】