MATLAB高压线接近距离仪设计仿真
毕业设计说明书（论文）外文摘要
Title The Design of Range Finder Close to High Tension Line
Abstract
In this paper, the design process of a high tension line range finder based on embedded development board is introduced. First, the characteristics of the electric field of the high tension line are analyzed. Then detailed research process of metering distance principle of the high tension line is introduced, through which we get theoretical calculating formula of power frequency electric field and the formula about distance and the electric field. Besides, the accuracy of this principle is verified through the MATLAB simulation. And then, the overall design of hardware circuit is presented, that is to acquire electric signal through detector, and after operational amplifier and A/D converter, it goes into the micro controller to obtain corresponding processing; In the part of the hardware circuit, detailed selection process of power frequency electric field probe is stated, and two spherical probe is determined to be used to measure distance; And the chip selection and circuit design of other hardware function modules are respectively briefly explained. In the end, software debugging is simply presented, and debugging result is made graphics with MATLAB simulation software.
Keywords high-tension line power frequency electric field metering distance principle MATLAB simulation spherical probe
目次
1 引言 1
1.1 选题的背景及意义 1
1.2 国内外研究现状 2
1.3 论文的结构 5
2 高压线电场分析 5
2.1 电准静态场 5
2.2 工频电场 6
3 高压线测距原理 7
3.1 模拟电荷法 7
3.2 简化模拟电荷法 14
4 测距原理验证仿真 16
4.1 电场理论值计算 16
4.2 高压线距离计算 18
5 硬件电路设计 20
5.1 测距仪的总体设计 20
5.2 工频电场测量探头 21
5.3 其它硬件电路设计 26
6 软件设计与调试 28
6.1 软件总体设计 28
6.2 软件调试 29
6.3 调试结果 31
结 论 33
致 谢 34
参 考 文 献 35
1 引言
1.1 选题的背景及意义
1.1.1 高压线周围电磁环境
随着我国城市建设和住宅产业的飞速发展，为了解决日益增长的电力需求，把电力设施建设到城市居民用电负荷密集地区，已经成为城市发展的必然趋势。