DSP三相电能测量单元硬件设计
毕业设计说明书（论文）外文摘要
Title Three-phase power hardware system design
Abstract
Nowadays, the transmission line’s three-phase power measurement becomes increasingly important. The traditional electric power measurement instrument generally take common single chip microcomputer as the core component, which is unable to high-speed sample and Handle in real-time. This paper uses the real-time gathering of three-phase circuit’s current and voltage hardware system design based on special measurement chip ADE7878 which use the DSP technology. And designs the measurement system. The system take advantage of ADE7878’s special digital signal processing ability, calculate the three-phase circuit active power, reactive power and power factor in real-time. Then the LPC2366 which has the ARM’s high speed and high performance control ability transmit data with ADE7878 and get the measuring data through the high-speed SPI serial port For the corresponding processing and data transmission. The system design and complete functional test shows that after the measurement system normal work, meet the requirements.
Keywords DSP technology ADE7878 ARM power measurement
目次
1.绪论1
1.1课题背景及研究意义1
1.2国内外研究现状2
1.3本文主要工作2
1.4本文章节安排3
2.测量系统原理分析4
2.1测量芯片工作原理分析4
2.2测量芯片与控制芯片通信原理分析7
2.3本章小结7
3.总体系统分析8
3.1设计需求分析8
3.2系统总体设计9
3.3本章小结11
4.系统硬件设计12
4.1硬件总体结构12
4.2电源模块电路设计15
4.3控制模块电路设计18
4.4测量模块电路设计19
4.5本章小结23
5.系统软件设计24
5.1软件设计目标24
5.2软件开发环境介绍24
5.3主程序设计25
5.4各功能模块驱动程序设计26
5.5本章小结30
6.系统调试与功能测试31
6.1电源模块调试31
6.2测量模块调试31
6.3串口调试31
6.4本章小结32
总结33
致谢34
参考文献35
1. 绪论
1.1课题背景及研究意义
自从人类大规模地使用电能以来，电能就不断地影响着人们的生产与生活，其应用程度是一个国家发展水平的重要标志之一，它不仅是文持国民经济正常发展的重要保证，而且还为现代工矿企业、现代农业以及现代国防提供必不可少的动力。
随着我国电力工业的快速发展，电能质量对于电网的安全经济运行，保证工业产品质量和科学实验的正确进行以及降低能耗等均具有重要意义。为了改善这一状况，对电力系统中各电能参量进行测量与分析，成为检测技术的重要方向。准确、完整地进行电力参数的测量和分析是成功的关键，因此电网的质量问题成为关键，电力参数的分析和监测已经成为国际上讨论和研究的重要课题[1]。
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