STUDY ON SAFE DETECTION AND RESTORING FUNCTION FROM ABNORMALITY OF DCS CONTROLLER

LI Xiaobo1; YE Zhi1; YANG Xinmin1; KANG Yi2; QI Guoying2; XING Shengli3 1.Xi'an Thermal Power Research Institute Co Ltd

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STUDY ON SAFE DETECTION AND RESTORING FUNCTION FROM ABNORMALITY OF DCS CONTROLLER

Thermal Power Generation Vol. 40, Issue 10, Pages: 66-69(2011)

更新时间：2025-09-28

- STUDY ON SAFE DETECTION AND RESTORING FUNCTION FROM ABNORMALITY OF DCS CONTROLLER
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能陕西发电有限公司
  3. 华能陕西秦岭发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP273.5
- Published：2011
- 稿件说明：
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LI Xiaobo1, YE Zhi1, YANG Xinmin1, et al. STUDY ON SAFE DETECTION AND RESTORING FUNCTION FROM ABNORMALITY OF DCS CONTROLLER[J]. Thermal Power Generation, 2011, 40(10): 66-69.
DOI：

LI Xiaobo1, YE Zhi1, YANG Xinmin1, et al. STUDY ON SAFE DETECTION AND RESTORING FUNCTION FROM ABNORMALITY OF DCS CONTROLLER[J]. Thermal Power Generation, 2011, 40(10): 66-69. DOI：

摘要

对DCS控制器系统软件的安全机制和异常恢复功能进行了研究

提出了一种基于全局扫描的控制器安全检测和异常恢复算法。控制器运行处于异常状态时

该算法能及时检测出控制器异常状态并复位控制器

同时将异常控制器切至备用控制器

以保证DCS始终处于安全稳定的运行状态。此外

该算法可对系统任务进行定期扫描分析

及时处理运行过程中出现的异常情况。将该算法应用于FCS165现场总线控制系统

经长期测试和电厂应用表明

其具有较高的可靠性和安全性。

Abstract

The safe mechanism and restoring function from abnormality of softwares in the DCS controller system have been studied

and a corresponding algorithm based on the overall situation scanning controller being put forward.When the said controller is in operation under abnormal situation

the said algorithm can timely detect out the abnormality of controller

and restore the controller

at the same time

the abnormal controller can be switched over onto the standby controller

so as to ensure the DCS to be in a safe and stable operation status from beginning to end.The said algorithm can periodically scan and analyse the task of said system

timely despose the abnormality occurred in the process of operation.The said algorithm has been used to FCS165 fieldbus

the longterm test and application in thermal power plants show that the said algorithm boasts higher reliability and safety.

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