毕业论文：智能功率测量仪.doc

PAGE II PAGE I 摘 要 许多工业设备在运行过程中，需要对其进行实时在线测量，随时了解其功率等参数。所以电力用户都迫切需要一种安全可靠、实施快速的交流电量检测仪器，有效地对参数进行测试。 本项目所研制的智能功率测量仪以 INTEL8031 单片机为核心，采用了交流采样计算技术，以软件代替了传统仪器中的大量硬件，将多种测量功能集于一身，用一台仪器就可以测量电流电压有效值、有功功率、功率因数等参数，并具有越限报警功能。 文中论述了该智能功率测量仪的工作原理，并讨论了非同步采样算法在本项目中应用的几个实际问题。在此基础上，详细介绍了整个仪器的软硬件开发过程。最后对仪器进行了误差分析，给出了误差分析结果。 [关键字] 单片机, 功率测量, 非同步交流采样算法 ABSTRACT During the operation of industrial devices, a real-time, on –line measurement of the multi-parameter was demanded, for example, the power. Therefore, power users urgently demand a new type of safe, reliable, real-time and high-speed measuring instrument of AC parameters. The intelligent power appearance developed here is based on Single Chip Microcomputer (Intel 8031). We adopt alternating sampling and numerical computation technology. Some hardware used in traditional instrument is replaced by software. We can measure the effective values of voltage and current, power, power factor by the instrument. The paper discussed the principle of the intelligent power appearance, and discussed asynchronous alternative sampling algorithm in the actual problem of this item. On this foundation, we introduce the development of software and hardware in the whole instrument in detail. At last, the analysis of error was carried on and the result of the instrument was given.　 [Keyword] Single Chip Microcontroller, Power measurement, Asynchronous alternative sampling algorithm 目 录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc105772637 摘 要  PAGEREF _Toc105772637 \h I  HYPERLINK \l _Toc105772638 ABSTRACT  PAGEREF _Toc105772638 \h II  HYPERLINK \l _Toc105772639 第一章 绪论  PAGEREF _Toc105772639 \h 1  HYPERLINK \l _Toc105772640 1.1 电参数测量仪器国内外发展状况  PAGEREF _Toc105772640 \h 1  HYPERLINK \l _Toc105772641 1.2 项目的意义和要求  PAGEREF _Toc105772641 \h 3  HYPERLINK \l _Toc105772642 1.3 本文的主要工作  PAGEREF _Toc105772642 \h 3  HYPERLINK \l _Toc105772643 第二章 系统设计原理及其方法  PAGEREF _Toc105772643 \h 4  HYPERLINK \l _Toc