電能表測量系統

電氣自動化論文編號:ZD837    論文字數:31565,頁數:83
目 錄
摘要………………………………………………………………………………...……………..I
1  前言…………………………………………………………………………………………..1
2  DTSF系列電能表總體方案設計………………………………………………………...2                                                                        
2.1  硬件結構………………..…………………………………………………….…....……2
2.2  軟件結構………………….…………………………………………….…. . .…………4
3   DTSF系列電能表硬件系統.……………………………………………..………….........6
 3.1  電源電路部分………………..……………………………………….….……………..6
 3.2  計量電路部分.…………………..…………………………………..…….……………8
 3.3  通訊電路部分………………….……..……………………………….………………15
 3.4  MCU及其它相關電路部分…………………..……………………….……………..…16
4  PCB制版……………………………………………………………………………………..20
 4.1  系統開發工具介紹……………………………...…………………………….………20
5  PCB調制………………………………………………………………………………..……25
 5.1  概述……………………….………………………………………………………...…25
 5.2  計量芯片ATT7028A……………………………………………………………………26
 5.3  LCD 驅動/控制器（PCF8576）…………………………………………………..…33
 5.4 線串行溫度傳感器和熱監控器TCN75……………………………………………...…42
     5.5 實時時鐘8025……………………………………………………………….……..…46
 5.6 MCU NECPD78F0513…………………………..……………………………………..…54
6  DTSF系列電能表軟件系統………………………………………………………………64
 6.1 DTSF系列電能表主程序分析…………………………………….………………..…64
 6.2 DTSF系列電能表軟件初始化算法分析………………………………………..………66
 6.3 DTSF系列電能表軟件的時鐘、顯示處理模塊算法分析………………………….…68
 6.4 DSTF系列電能表軟件的通訊處理模塊算法分析…………………………….………69
 6.5  DTSF系列電能表軟件的電量計量處理模塊算法…………………………………...70
7 校驗……………………………………………………………………………………………72
 7.1誤差分析及其調整……………….…………………………………………………..…72
 7.1.1 誤差分析…………………………………………………………………..……72
 7.1.2 誤差調整……………………………………………………………………..…72
8總結…………………………………………………………………………………………….75
致謝………………………………………………………………………………………………76

摘  要
 二十世紀八十年代，隨著電力逐步走向市場，用電營銷對電能計量工作提出了更高的要求，電能計量表計要承擔的功能也越來越多，如在電力系統中，為引導用戶更有效、合理、均衡地利用電能，避免尖峰負荷的出現，提高系統的負荷率，達到電網經濟運行的目的，需要對用戶實行分時計量; 又如，為對電能計量裝置進行在線監測，遠方遙控，需要對電能表進行遠方通信等。同時，隨著社會的發展，交易的電量越來越大，供，用雙方對自身的權益也越來越關心，這就對電能計量表計的準確度等級提出了越來越高的要求。
 本畢業設計通過微電子技術和單片機應用技術對三相四線復費率計量表進行設計。

關鍵詞：電能計量、無線抄表、通信、復費率

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