DCS失电故障分散控制系统维护平台设计

Design of Maintenance Platform for DCS Power Loss Fault Distributed Control System

由于传统分散控制系统对DCS失电故障风险评估准确率较低、可靠性差,导致系统控制精度低;提出设计一种DCS失电故障分散控制系统维护平台;根据DCS失电故障分散控制系统在电源、系统和通信结构中经常出现的失电故障风险分析和系统硬件馈线结构,从失电故障发生概率和故障断电损失两个方面建立风险评价指标,并以该指标为基础,以常出现故障问题为渠道,构建失电故障风险评估数学模型,通过故障风险评估模型完成控制系统维护平台的设计;实验结果证明,该维护平台可有效提高DCS失电故障分散控制系统的控制准确率和可靠性。

Due to the low accuracy rate and poor reliability of the traditional decentralized control system for DCS failure risk assessment,the control precision of the system is low.A maintenance platform for DCS power loss fault dispersion control system is designed.According to the analysis of hardware and electrical loss feeder structure system failure risks often occur in power system and communication structure in DCS distributed control system failure,loss of power failure occurred from two aspects of the establishment of risk evaluation index and the probability of fault power loss,and the index is based on the common faults for channel construction the mathematical model of electric loss fault risk assessment,the risk assessment model of fault control platform design,system maintenance.The experimental results show that the maintenance platform can effectively improve the control accuracy and reliability of the DCS power loss control system.