【摘要】：經(jīng)濟(jì)發(fā)展,電力先行。隨著我國(guó)電力系統(tǒng)的快速發(fā)展,各類(lèi)輸變配電設(shè)備的檢修和維護(hù)的工作也變得至關(guān)重要。在電力系統(tǒng)中,有眾多的高壓開(kāi)關(guān)柜,他們起著控制和保護(hù)的作用。傳統(tǒng)的高壓開(kāi)關(guān)柜中高壓開(kāi)關(guān)柜過(guò)熱、開(kāi)關(guān)柜內(nèi)部短路等故障的出現(xiàn)率較高,已經(jīng)不能滿足電力系統(tǒng)網(wǎng)絡(luò)化監(jiān)測(cè)和動(dòng)態(tài)實(shí)時(shí)響應(yīng)的要求。針對(duì)目前高壓開(kāi)關(guān)柜體積大、質(zhì)量重、自動(dòng)化低的現(xiàn)狀,設(shè)計(jì)了基于嵌入式WEB的高壓開(kāi)關(guān)柜智能監(jiān)測(cè)系統(tǒng)。本課題首先分析了高壓開(kāi)關(guān)柜實(shí)時(shí)在線監(jiān)測(cè)系統(tǒng)中的關(guān)鍵技術(shù),制定了基于磁傳感器陣列的測(cè)試方案。其次,設(shè)計(jì)了以STM32F407IGT為主控芯片和AD7606多通道高速同步轉(zhuǎn)化為前端采集設(shè)備,以W5500為以太網(wǎng)通信模塊的硬件架構(gòu)。在硬件平臺(tái)的基礎(chǔ)上編寫(xiě)了SPI通信模塊、數(shù)模轉(zhuǎn)換模塊的控制程序,并且開(kāi)發(fā)以太網(wǎng)模塊的驅(qū)動(dòng)程序。最后,對(duì)基于LWIP協(xié)議的后臺(tái)WEB終端的開(kāi)發(fā)流程進(jìn)行詳細(xì)的說(shuō)明,并完成嵌入式WEB的網(wǎng)頁(yè)控制顯示界面設(shè)計(jì)。通過(guò)對(duì)系統(tǒng)的調(diào)試及實(shí)驗(yàn)驗(yàn)證得出如下結(jié)論:在線監(jiān)測(cè)系統(tǒng)的電壓測(cè)量范圍為3-10KV、大電流范圍為0-1300A;電參數(shù)采集通道采樣率達(dá)到200KPS;嵌入式服務(wù)器網(wǎng)頁(yè)響應(yīng)時(shí)間為1S,可視化的設(shè)計(jì),對(duì)異常電參數(shù)進(jìn)行報(bào)警,并可查找歷史監(jiān)測(cè)數(shù)據(jù)。有效地實(shí)現(xiàn)了智能電網(wǎng)中高壓開(kāi)關(guān)柜的在線實(shí)時(shí)監(jiān)測(cè),滿足了課題設(shè)計(jì)的應(yīng)用要求。
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圖片說(shuō)明：母排磁傳感器陣列設(shè)計(jì)
[Abstract]:Electricity comes first in economic development. With the rapid development of power system in our country, the maintenance and maintenance of all kinds of transmission and distribution equipment has become very important. In the power system, there are many high voltage switchgear, they play the role of control and protection. In the traditional high voltage switchgear, the occurrence rate of high voltage switchgear overheating and short circuit in switch cabinet is high, which can not meet the requirements of network monitoring and dynamic real-time response of power system. Aiming at the present situation of large volume, heavy mass and low automation of high voltage switchgear, an intelligent monitoring system of high voltage switchgear based on embedded WEB is designed. In this paper, the key technologies of real-time on-line monitoring system for high voltage switchgear are analyzed, and the test scheme based on magnetic sensor array is worked out. Secondly, the hardware architecture of STM32F407IGT as main control chip, AD7606 multi-channel high-speed synchronous conversion to front-end acquisition equipment and W5500 as Ethernet communication module is designed. On the basis of hardware platform, the control program of SPI communication module and digital-to-analog conversion module is written, and the driver of Ethernet module is developed. Finally, the development flow of background WEB terminal based on LWIP protocol is described in detail, and the web page control display interface of embedded WEB is designed. Through the debugging and experimental verification of the system, the following conclusions are drawn: the voltage measurement range of the on-line monitoring system is 3 鈮，

本文編號(hào)：2510151