电能表测量系统

范文编号:ZD837    范文字数:31565,页数:83
摘  要
 二十世纪八十年代，随着电力逐步走向市场，用电营销对电能计量工作提出了更高的要求，电能计量表计要承担的功能也越来越多，如在电力系统中，为引导用户更有效、合理、均衡地利用电能，避免尖峰负荷的出现，提高系统的负荷率，达到电网经济运行的目的，需要对用户实行分时计量; 又如，为对电能计量装置进行在线监测，远方遥控，需要对电能表进行远方通信等。同时，随着社会的发展，交易的电量越来越大，供，用双方对自身的权益也越来越关心，这就对电能计量表计的准确度等级提出了越来越高的要求。
 本文档设计通过微电子技术和单片机应用技术对三相四线复费率计量表进行设计。

关键词：电能计量、无线抄表、通信、复费率

Abstract
 1980s, move towards the market gradually along with the electric power, used electricity the marketing to propose to the electrical energy measurement work a higher request, the electrical energy measurement instrument had to undertake the function more and more were also many, like in the electrical power system, was more effective for the guidance user, reasonably, uses the electrical energy balanced, avoided the peak load the appearance, enhanced system the load factor, achieved the electrical network economy movement the goal, needed to implement the time sharing measurement to the user; Also like, for carries on the online monitor to the electrical energy measurement installment, the distant place remote control, needs to carry on the distant place correspondence to the electrical energy table and so on.At the same time, along with society's development, the transaction electric quantity is more and more big, for, also more and more cared about with both sides to own rights and interests, this set the more and more high request to the electrical energy measurement instrument accuracy rank.
 This graduation project carries on the design through the microelectronic technology and the monolithic integrated circuit application technology to the three-phase four duplicate tariff gauge table.
 
 
Keywords： The electrical energy measurement, wireless copies the table, the correspondence, the duplicate tariff

目 录
摘要………………………………………………………………………………...……………..I
1  前言…………………………………………………………………………………………..1
2  DTSF系列电能表总体方案设计………………………………………………………...2                                                                        
2.1  硬件结构………………..…………………………………………………….…....……2
2.2  软件结构………………….…………………………………………….…. . .…………4
3   DTSF系列电能表硬件系统.……………………………………………..………….........6
 3.1  电源电路部分………………..……………………………………….….……………..6
 3.2  计量电路部分.…………………..…………………………………..…….……………8
 3.3  通讯电路部分………………….……..……………………………….………………15
 3.4  MCU及其它相关电路部分…………………..……………………….……………..…16
4  PCB制版……………………………………………………………………………………..20
 4.1  系统开发工具介绍……………………………...…………………………….………20
5  PCB调制………………………………………………………………………………..……25
 5.1  概述……………………….………………………………………………………...…25
 5.2  计量芯片ATT7028A……………………………………………………………………26
 5.3  LCD 驱动/控制器（PCF8576）…………………………………………………..…33
 5.4 线串行温度传感器和热监控器TCN75……………………………………………...…42
     5.5 实时时钟8025……………………………………………………………….……..…46
 5.6 MCU NECPD78F0513…………………………..……………………………………..…54
6  DTSF系列电能表软件系统………………………………………………………………64
 6.1 DTSF系列电能表主程序分析…………………………………….………………..…64
 6.2 DTSF系列电能表软件初始化算法分析………………………………………..………66
 6.3 DTSF系列电能表软件的时钟、显示处理模块算法分析………………………….…68
 6.4 DSTF系列电能表软件的通讯处理模块算法分析…………………………….………69
 6.5  DTSF系列电能表软件的电量计量处理模块算法…………………………………...70
7 校验……………………………………………………………………………………………72
 7.1误差分析及其调整……………….…………………………………………………..…72
 7.1.1 误差分析…………………………………………………………………..……72
 7.1.2 误差调整……………………………………………………………………..…72
8总结…………………………………………………………………………………………….75
致谢………………………………………………………………………………………………76

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