摘要
在镍冶炼生产过程中,电炉变压器的工作环境与条件均较一般的电力变压器恶劣,常规的集中控制保护不能满足其特殊的可靠性及安全性要求。随着微计算机技术及现场总线技术的发展,对变压器的保护与监控措施也已开始改变。本文介绍的变压器微机测控保护与监控系统,以高性能嵌入式微控制器87C196KC-20为核心,应用CAN(控制器局域网络)现场总线技术,实现变压器保护测控装置与监控主机的多主通信,构筑一个全分布式的微机保护测控与监控系统,实现电炉变压器的反时限电流保护、运行参数实时监测与在线故障诊断等功能。
In nickel smelting process, the working conditions and surroundings for the transformer of electric furnace are worse than general electric power transformer. It is difficult to meet the requirements on reliability and safety by the conventional centralized control protection. With the development of microcomputer and field-bus technology, it is necessary to design a new type of protection and monitoring system for transformer of electric furnace. This paper describes a microprocessor-based protection and monitoring system which uses the embedded high performance microprocessor 87C196KC-20 as its most important micro-controller unit & the technology of CAN (Controller Area Network) making it a fully distributed microcomputer system not only to perform all sorts of the transformer protection and function of automatic coinciding and communicate with the monitoring host but also to carry with it the function of protecting, measuring and fault diagnosis for transformer of electric furnace.
出处
《计算技术与自动化》
2003年第2期81-84,共4页
Computing Technology and Automation
