摘要电缆的故障监测是保证电缆稳定运行的重要措施之一，如果不能及时发现故障，并排除故障，会影响电力系统运行的稳定性。随着故障监测技术的飞速发展，使得电缆故障监测的方法越来越多样化。在这众多监测方法中，电桥法是最基础的方法之一。电桥法具有测量原理简单、操作不复杂、定位准确度高、价格低廉等优点。电桥法是最早被用来检测电缆故障的方法，技术成熟，是电缆故障监测人员最为常用的手段之一。84370
本文在传统电桥法的基础上，提出了智能电桥法，运用智能电桥法对1kv低压电缆进行故障监测。智能电桥法把传统电桥法和单片机技术相结合，比起传统电桥法，智能电桥法的测量精度更高，测量范围更大，价格更便宜，操作也更简单，是现在比较常用的测量电缆故障的方法之一。
毕业论文关键词 电力电缆 绝缘在线监测 电桥法
毕业设计说明书外文摘要
Title Research and Design of Online Monitoring of Power Cable Insulation Based on Bridge Method
Abstract Cable fault monitoring is one of the important measures to ensure the stable operation of the cable。 If the faults can not be found and eliminated in time, the stability of the power system will be affected。 With the rapid development of fault monitoring, there are more and more various methods of cable fault monitoring and the bridge is one of the most basic methods。The bridge is used to measure the cable faults and has the advantages of simple measuring principle, convenient operation, high positioning accuracy, popular price and so on。 Direct current bridge method,which is mature and has been one of the most frequently-used means over the years, is the earliest way to detect the cable faults。
Intelligent bridge method is presented in this dissertation on the basis of traditional bridge method。 The intelligent bridge method combines the traditional bridge method and the computer technology。Compared to the traditional bridge method,the intelligent bridge method, which is now one of the common methods for measuring cable fault, has the advantages of higher measuring accuracy,wider measuring scope, more popular price, more simple operation。
Keywords power cable Insulation on line monitoring Bridge method
目 次
1 绪论… 1
1。1 课题的背景及意义1
1。3 目前监测方法的总结 2
1。4 课题研究的主要内容 3
2 系统工作原理及总体设计方案… 4
2。1 测试系统技术要求… 4
2。2 传统电桥法原理…4
2。3 智能电桥法原理…4
2。4 系统模块设计5
3 硬件系统的设计6
3。1 直流高压电源模块的设计 6
3。2 放大电路模块的设计…6
3。3 绝对值电路的设计6
3。4 A/D转换模块的设计 7
3。5 单片机模块的设计8
3。6 数字电位器模块的设计…11
3。7 显示电路的设计…13
3。8 硬件部分的总结 14
4 软件系统的设计15
4。1 程序设计方案… 15
4。3 数字电位器调节程序17
4。4 显示电路驱动程序18
4。5 软件系统总结… 21
结论 …22
致谢 …23
参考文献… 24
附图A …25
附录A …26
1 绪论
1。1 课题的背景及意义 电桥法电力电缆绝缘在线监测系统设计+电路图+程序:http://www.youerw.com/zidonghua/lunwen_99990.html