發(fā)布時間：2018-03-07 20:55

  本文選題：電能質(zhì)量　切入點：ADE7880　出處：《鄭州大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：電能質(zhì)量已成為當前電力系統(tǒng)的熱門話題,無論是供電企業(yè)還是電力用戶都對電能質(zhì)量帶來的影響有了足夠的重視。與此同時,電能質(zhì)量的監(jiān)測卻面臨著成本高居不下的問題,這使得普通電力用戶無法組網(wǎng)監(jiān)測自身多個區(qū)域完整的電能質(zhì)量,也導(dǎo)致用戶不能對自身設(shè)備的運行狀況進行監(jiān)視和診斷。針對這一現(xiàn)狀,本文提出了一種低成本、精度符合國標要求的可監(jiān)測用戶自身主要電能質(zhì)量指標的解決方案,并最終開發(fā)完成了一套電能質(zhì)量在線監(jiān)測系統(tǒng)。首先,本文分析了國內(nèi)外電能質(zhì)量監(jiān)測系統(tǒng)/裝置的現(xiàn)狀和我國電能質(zhì)量國家標準,介紹了電能質(zhì)量指標的測量、計算方法,為本文監(jiān)測系統(tǒng)的開發(fā)提供了理論依據(jù)。通過考察嵌入式處理器發(fā)展的最新架構(gòu),提出了一種使用OMAP-L138和ADE7880的電能質(zhì)量監(jiān)測系統(tǒng)方案。隨后,設(shè)計了本系統(tǒng)的監(jiān)測裝置部分,包括信號轉(zhuǎn)換電路,實現(xiàn)了電壓電流信號的轉(zhuǎn)換和采集、電能質(zhì)量指標的計算;還包括嵌入式系統(tǒng),實現(xiàn)了對ADE7880的調(diào)控和數(shù)據(jù)交互、大容量存儲以及與遠程數(shù)據(jù)中心的命令/數(shù)據(jù)交互。此外,還設(shè)計了基于LabVIEW平臺的數(shù)據(jù)中心程序,實現(xiàn)了對所有監(jiān)測點電能質(zhì)量各項指標的實時顯示、歷史數(shù)據(jù)調(diào)取和分析等功能,并包含權(quán)限管理。最后,通過實驗驗證,表明了該系統(tǒng)設(shè)計方案合理、功能完善、精度符合國家標準要求。
[Abstract]:Power quality has become a hot topic in current power system. Both power supply enterprises and power users have paid enough attention to the impact of power quality. At the same time, the monitoring of power quality is facing the problem of high cost. This makes it impossible for ordinary electric power users to network and monitor the complete power quality of their own multiple areas, and it also leads to the inability of users to monitor and diagnose the operation status of their own equipment. In view of this situation, a low cost is proposed in this paper. A solution that can monitor the main power quality indexes of the users according to the requirements of the national standard is developed and a set of online power quality monitoring system is developed. First of all, This paper analyzes the present situation of domestic and international power quality monitoring system / equipment and the national standard of power quality, and introduces the measurement and calculation method of power quality index. This paper provides a theoretical basis for the development of this monitoring system. By reviewing the latest architecture of embedded processor development, a power quality monitoring system using OMAP-L138 and ADE7880 is proposed. Then, the monitoring device of the system is designed. It includes signal conversion circuit, voltage and current signal conversion and acquisition, power quality index calculation, embedded system, ADE7880 control and data exchange. In addition, a data center program based on LabVIEW platform is designed, which can display all the power quality indexes of monitoring points in real time. The functions of historical data retrieval and analysis include authority management. Finally, the experimental results show that the system design is reasonable, the function is perfect, and the precision is in line with the national standard.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM930

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本文編號：1580917