变电站二次回路优化研究  

Research on Opti mization of Transformer's Secondary Circuit

作　　者：汤胜[1] 

机构地区：[1]武汉供电公司变电检修公司,湖北武汉430050

出　　处：《仪表技术》2011年第3期18-21,共4页Instrumentation Technology

摘　　要：文章给出了二次回路优化改进方案。通过改变现有回路信号传输方式,以嵌入式以太网芯片MC9S12NE64为核心构成一个完整的终端节点,形成数字信号传输网络,取代传统的导线连接回路。使连接端子箱到保护屏、测控屏及其他保屏大量线缆用光纤(或网线)代替,端子箱成为信号采集点。设备之间的连接全部采用高速的网络通信。介绍了以太网芯片MC9S12NE64的主要特点、内部结构和操作模式,给出了优化后的回路结构组成、测控装置结构、信号采集电路及相关的软件设计。The improvement and optimization of the secondary circuit are introduced.The transmission way of the loop signal is changed.It takes embedded Ethernet chip MC9S12NE64 as the core to form a digital signal transmission network and takes the place of traditional wire loop.The optical fiber is used to substitute the mesh wire which connects the terminal box to the protecting panels,the observation panels,and other panels.The terminal box becomes the signal collecting spot.The equipment communicates with each others through the high speed network.The main features of the Ethernet chip MC9S12NE64 are introduced,about the internal structure,the operating mode,the optimized loop structure,the equipment＇s structure,the signal collecting circuit and the design of related software.

关 键 词：嵌入式系统 以太网 二次回路监测 MC9S12NE64 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]