FF控制系统时滞特性分析及相应参数设置规则  

Analysis of the time-delay characteristic of the Foundation Fieldbus control system and setting of the corresponding parameters

作　　者：孙瑛[1] 庞彦斌[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2006年第3期77-80,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：从控制和通信角度综合分析了基金会现场总线控制系统的时滞特性,并总结了在该时滞特性影响下的参数设置规则。以一个3节点的闭环单回路控制系统为例,通过研究其回路时滞的分布、大小及产生原因,找到了影响总线时滞的关键变量。并据此论证了总线时滞与采样周期和总线调度表参数的内在联系,给出了合理设置以上参数时需要注意的问题。最后在仿真平台上,通过比较不同参数配置对系统性能的影响,验证了以上分析。The time-delay characteristic of a Foundation Fieldbus （FF）-based single loop control system was analyzed from the points of view of both control and communication. The relationship between the time-delay characteristic and the parameters of sample period and schedule table was derived. On the basis of this relationship, the optimum settings of the parameters are given. Simulation results also described here demonstrate the effect of different choice of parameters, and are consistent with the relationship derived.

关 键 词：FF 控制系统 纯滞后 采样周期 调度表 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]