电力工程毕业设计-1.6万字跨省电网
前 言近年来，随着新技术的不断应用，跨区跨省电网建设快速推进，电网网架结构得到进一步的加强和完善。将逐步实现大区域或者全国电力电量平衡原则。而电网建设将配合电源基地建设，改变过去单独依靠输煤的模式，采取输煤与输电并举的发展方式，通过特高压、超高压交直流，实施跨区、跨省，西电东送，南北互济，水电交互，火电、水电、风电、太阳能打捆送电。在实现高效率的智能化电网中输电线路将起着不可替代的作用！各地区的地形、地质、气象等自然环境比较复杂。在输电线路建设中会遇到许多技术问题。输电线路的设计、施工和运行都积累了丰富的经验，已经建立输电线路有关的研究和试验的机构和设施。要适应我国电网未来快速发展的要求，确保电网的安全、稳定、经济运行，在今后的电网建设中应推动新技术应用，以提高电网输送能力，节约输电走廊，提高线路投资效益。目前，我国电力系统中的输电线路设备大多采用计划式定期检修体制，这种体制存在着严重的缺陷，如临时性维修频繁、检修不及时、不完善、过剩、盲目等，系统的可靠性得不到保证，且检修维护的费用巨大。随着市场的发展和科技的进步，电力线路的规模越来越大，可靠性要求也越来越高，原有的运行、检修模式已难以适应未来电网的发展要求。 随着传感技术、微电子技术、计算机软硬件和数字信号处理技术等综合智能系统近年来的快速发展，使输电线路设备状态成为可能，而设备状态监测和先进诊断技术的状态检修研究也在近年来得到快速发展。输电线路设备状态检修管理技术已成为电力系统中的一个重要的研究领域。摘 要随着国民经济快速增长，各地电网建设迅猛发展，如何应对新形势，最大限度地满足电网建设需要已成为技术部门不断研究的课题。电力系统的安全可靠性运行至关重要。输电线路可靠性及运行情况直接决定着电力系统的稳定和安全。输电线路设备状态维修是一种先进的维修管理方式，能有效地克服定期维修造成设备过修或失修的问题，可给电力系统及社会带来巨大的经济效益。通过状态检修，能根据设备检测采集的数据，结合设备健康状态表达模型及健康指示参数，运用智能决策算法诊断出设备当前的健康状态，并预测设备寿命；如有需要提出检修建议计划。检修是保证输电设备健康运行的必要手段。做好输电设备的检修工作及早发现事故隐患并及时予以排除，使其始终以良好的状态投入运行具有重要的意义，尤其是电力系统向高电压、大容量、互联网发展，其重要性更加突出。本文从设计角度围绕导线的选择以及杆塔的定位和校验，杆塔的结构，金具的选择，防雷设计，金属设计等方面提出了意见和看法。本论文的设计分为二个部分，包括第一部分基本内容和第二部分电缆检修。关键词:引用标准 输电线路 杆塔设计 检修AbstractWith the rapid growth of national economy and the rapid development of power grid construction, how to cope with the new situation and meet the needs of power grid construction to the maximum extent has become the subject of constant research by the technical departments. The safe and reliable operation of power system is very important. Transmission line reliability and operation directly determine the stability and security of power system. State maintenance of transmission line equipment is an advanced maintenance management method, which can effectively overcome the problem of overrepair or disrepair caused by regular maintenance, and bring huge economic benefits to power system and society. Through condition maintenance, the current health status of the equipment can be diagnosed and the life of the equipment can be predicted by using intelligent decision algorithm according to the data collected by equipment detection, combined with the health status expression model and health indicator parameters of the equipment. Propose maintenance plan if necessary. Maintenance is a necessary means to ensure the healthy operation of transmission equipment. It is of great significance to do a good job in the maintenance of transmission equipment to find out potential accidents as soon as possible and eliminate them in time, so that they are always put into operation in a good state. Especially, the importance of the power system is more prominent in the development of high voltage, large capacity and Internet. From the point of view of design, this paper puts forward some opinions on the selection of wire, the positioning and calibration of tower, the structure of tower, the selection of gold fittings, lightning protection design, metal design and so on. The design of this paper is divided into two parts, including the first part of the basic content and the second part of cable maintenance.Key words: reference standard transmission line tower design maintenance目录前言.1摘要 .2绪论.6第一部分 基本内容一总则.7二状态检修的必要性和意义.71.输电线路实行状态检修的必要性.72.输电线路实行状态检修的意义.7三引用标准.8四一般要求.9五检修准备工作.9六设备检修.9七导地线.101.一般要求.102.项目.113.验收.12八绝缘检测.12常规检测技术.12第二部分 电缆检修一混凝土.杆塔及拉线.141.一般要求. .142.项目.143.关于杆塔.拉线的防盗问题.154.关于水泥杆裂纹处理.155.关于水泥杆倾斜调整.15二.导地线.151.打开线夹检查.152.导线打磨处理线伤.153.单线缠绕处理导地线损伤.164.补修预绞丝处理导线损伤.165.补修管修补导地线损伤.16三绝缘子.
