摘要：
隨著社會(huì)的發(fā)展，對(duì)電力的需求變得越來(lái)越大。在不同時(shí)間的電力不平衡現(xiàn)象日益嚴(yán)重。為了合理調(diào)整電力負(fù)荷，節(jié)約能源，我們提出了一個(gè)新的多速率設(shè)計(jì)三相電度表。這種新型多速率三相電度表的設(shè)計(jì)原理是在AT89LV5基礎(chǔ)上提出的。硬件和軟件流程設(shè)計(jì)，以及實(shí)驗(yàn)數(shù)據(jù)的分析，詳細(xì)介紹。通過(guò)審判淄博億電子有限公司制造，它表明這種多速率三相電度表具有特色，是步行的精度，準(zhǔn)確測(cè)量，自動(dòng)抄表，靈活的時(shí)間設(shè)置，成本低。因此，這種新型三相多費(fèi)率電度表具有廣闊的應(yīng)用前景。

關(guān)鍵詞：多速率，三相電度表，AT89LV52

一.引言
計(jì)算機(jī)技術(shù)的發(fā)展和應(yīng)用推動(dòng)了電表的智能化轉(zhuǎn)型。由于電力的需求增大，在不同時(shí)間的電力需求不平衡的現(xiàn)象越來(lái)越嚴(yán)重，電力公司鼓勵(lì)人們使用復(fù)費(fèi)率電度表[1]，以合理調(diào)整電力負(fù)荷，節(jié)省能源。傳統(tǒng)的復(fù)費(fèi)率電度表總是采用機(jī)械馬口鐵來(lái)衡量。也有一些不足之處，測(cè)量精度低與機(jī)械磨損快，單一的時(shí)間內(nèi)設(shè)置需要強(qiáng)大的人力資源[2]。在本文中，我們?cè)贏T89LV52的基礎(chǔ)上提出一個(gè)新的多速率三相電度表。這種多速率三相電度表采用測(cè)量AD7752。它的特點(diǎn)是分時(shí)計(jì)量，計(jì)量準(zhǔn)確，液晶顯示直觀器，自動(dòng)抄表，靈活的時(shí)間設(shè)置，及時(shí)校正，成本低，設(shè)計(jì)新穎。

Abstract
With the development of the society, the demand of electric power becomes bigger and bigger. The phenomenon of unbalanced electricity in different time is worse and worse. In order to adjust electric power burthen with reason and save energy, we put forward the design of a novel multi-rate three-phase watt-hour meter. The design principle of a novel multi-rate three-phase watt-hour meter based on AT89LV5 is proposed in this paper. The designs of hardware and software flow, as well as the analysis of experiment data are presented in detail. By trial manufacturing in Zibo Billion Electron Limited Company, it demonstrates that this multi-rate three-phase watt-hour meter has the characteristics which are walking precision, accurate measurement, automatic meter reading, flexible time period setting and low cost. Therefore, this novel multi-rate watt-hour meter has a broad application prospect.

Keywords-multi-rate, three-phase watt-hour meter,AT89LV52