作者：李海洋（1983-），男，江苏徐州人，工程师，本科，现就职于徐州华润电力有限公司，研究方向为热工控制技术。

摘要：温度是发电厂中监测设备状态的重要参数之一，涵盖从系统到设备的每个角落。随着DCS系统的广泛应用，温度参数不再仅仅局限于监视，已被广泛运用到保护回路和自动调节回路中。本文结合电厂实际情况，介绍如何利用DCS系统的强大计算和逻辑判断能力，对温度拒动和误动逻辑做出更合理的设计，实现温度保护、温度连续预测等功能。

关键词：DCS；温度保护

Abstract: Temperature is one of the important parameters to monitorequipment status in power plant, covering every corner from systemto equipment. With the wide application of DCS system, temperatureparameters are not only limited to monitoring, but also widely usedin protection circuit and automatic regulation circuit. Based on theactual situation of power plant, this paper introduces how to use thepowerful calculation and logic judgment ability of DCS system to makea more reasonable design for the logic of temperature misoperation andmisoperation, so as to realize the functions of temperature protectionand continuous temperature prediction.

Key words: DCS; Temperature protection

在线预览：DCS系统中几种常见温度信号处理方式

摘自《自动化博览》2020年7月刊