双费率数字电度表设计【毕业论文】.doc

- PAGE I - 本科毕业设计 （20 届） 双费率数字电度表设计 所在学院 专业班级 电子信息科学与技术 学生姓名 学号 指导教师 职称 完成日期 年 月 PAGE I 摘　要 【摘要】随着经济和科技的发展，全世界用电量日益增加，全球许多国家面临着用电紧张的的危机。我国采取多费率用电政策，消峰填谷，以达到平衡高效用电的目的。在这种政策下，复费率电表大规模取代了单一费率电表。 本论文建立在前人的理论和研究基础上，以AD7755为电能计量芯片和C8051F330单片机为控制芯片，利用简单的单片机技术设计开发了一款双费率电子式电能表，在单片机的控制下实现双费率电表分时段计量功能。 【关键词】复费率电表；AD7755；单片机；电子式电能表。 Abstract 【ABSTRACT】With the development of economy and technology, the electricity consumption of all the world is increasing. Many countries are facing the crisis of global power shortage. Our country adopt the power policy of multi-rated price, eliminating the peaks and troughs, to achieve the objective of balanced and efficient use of electricity. Under this policy, multi-rated watt-hour meter large-scale replaces the single rate meter. This paper built on the base of previous theoretical and research, AD7755 as the energy metering chip and C8051F330 microcontroller as the control chip, using simple single chip technology to design a double-rated power meter. The meter achieve sub-meter time measurement of double- rate function under the control of the microcontroller . 【KEYWORDS】multi-rated watt-hour meter;AD7755;single chip;power meter. 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc293521175 摘　要 PAGEREF _Toc293521175 \h II HYPERLINK \l _Toc293521176 Abstract PAGEREF _Toc293521176 \h III HYPERLINK \l _Toc293521177 目　录 PAGEREF _Toc293521177 \h IV HYPERLINK \l _Toc293521178 1引言 PAGEREF _Toc293521178 \h 1 HYPERLINK \l _Toc293521179 1.1本课题的背景与意义 PAGEREF _Toc293521179 \h 1 HYPERLINK \l _Toc293521180 1.2多费率电子式表的优势 PAGEREF _Toc293521180 \h 1 HYPERLINK \l _Toc293521181 2总体方案设计介绍 PAGEREF _Toc293521181 \h 3 HYPERLINK \l _Toc293521182 2.1方案任务及目标 PAGEREF _Toc293521182 \h 3 HYPERLINK \l _Toc293521183 2.2系统基本方案 PAGEREF _Toc293521183 \h 3 HYPERLINK \l _Toc293521184 2.2.1电能计量单元 PAGEREF _Toc293521184 \h 3 HYPERLINK \l _Toc29352118