基于嵌入式的高压开关柜在线实时监测系统研究
发布时间：2019-07-04 19:09
【摘要】：经济发展,电力先行。随着我国电力系统的快速发展,各类输变配电设备的检修和维护的工作也变得至关重要。在电力系统中,有众多的高压开关柜,他们起着控制和保护的作用。传统的高压开关柜中高压开关柜过热、开关柜内部短路等故障的出现率较高,已经不能满足电力系统网络化监测和动态实时响应的要求。针对目前高压开关柜体积大、质量重、自动化低的现状,设计了基于嵌入式WEB的高压开关柜智能监测系统。本课题首先分析了高压开关柜实时在线监测系统中的关键技术,制定了基于磁传感器阵列的测试方案。其次,设计了以STM32F407IGT为主控芯片和AD7606多通道高速同步转化为前端采集设备,以W5500为以太网通信模块的硬件架构。在硬件平台的基础上编写了SPI通信模块、数模转换模块的控制程序,并且开发以太网模块的驱动程序。最后,对基于LWIP协议的后台WEB终端的开发流程进行详细的说明,并完成嵌入式WEB的网页控制显示界面设计。通过对系统的调试及实验验证得出如下结论:在线监测系统的电压测量范围为3-10KV、大电流范围为0-1300A;电参数采集通道采样率达到200KPS;嵌入式服务器网页响应时间为1S,可视化的设计,对异常电参数进行报警,并可查找历史监测数据。有效地实现了智能电网中高压开关柜的在线实时监测,满足了课题设计的应用要求。
文内图片：
图片说明：母排磁传感器阵列设计
[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，
本文编号：2510151
文内图片：
图片说明：母排磁传感器阵列设计
[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，
本文编号：2510151
本文链接：https://www.wllwen.com/kejilunwen/dianlidianqilunwen/2510151.html
