發(fā)布時間：2019-07-04 19:09

【摘要】：經濟發(fā)展,電力先行。隨著我國電力系統(tǒng)的快速發(fā)展,各類輸變配電設備的檢修和維護的工作也變得至關重要。在電力系統(tǒng)中,有眾多的高壓開關柜,他們起著控制和保護的作用。傳統(tǒng)的高壓開關柜中高壓開關柜過熱、開關柜內部短路等故障的出現(xiàn)率較高,已經不能滿足電力系統(tǒng)網絡化監(jiān)測和動態(tài)實時響應的要求。針對目前高壓開關柜體積大、質量重、自動化低的現(xiàn)狀,設計了基于嵌入式WEB的高壓開關柜智能監(jiān)測系統(tǒng)。本課題首先分析了高壓開關柜實時在線監(jiān)測系統(tǒng)中的關鍵技術,制定了基于磁傳感器陣列的測試方案。其次,設計了以STM32F407IGT為主控芯片和AD7606多通道高速同步轉化為前端采集設備,以W5500為以太網通信模塊的硬件架構。在硬件平臺的基礎上編寫了SPI通信模塊、數模轉換模塊的控制程序,并且開發(fā)以太網模塊的驅動程序。最后,對基于LWIP協(xié)議的后臺WEB終端的開發(fā)流程進行詳細的說明,并完成嵌入式WEB的網頁控制顯示界面設計。通過對系統(tǒng)的調試及實驗驗證得出如下結論:在線監(jiān)測系統(tǒng)的電壓測量范圍為3-10KV、大電流范圍為0-1300A;電參數采集通道采樣率達到200KPS;嵌入式服務器網頁響應時間為1S,可視化的設計,對異常電參數進行報警,并可查找歷史監(jiān)測數據。有效地實現(xiàn)了智能電網中高壓開關柜的在線實時監(jiān)測,滿足了課題設計的應用要求。
文內圖片：
圖片說明：母排磁傳感器陣列設計
[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：2510151