总线智能仪表温度控制系统的设计  

Desigen of Temperature Control System in the Fieldbus Intelligent Instrument

作　　者：崔倩[1] 韩璞[1] 王浩[2] 

机构地区：[1]华北电力大学控制科学与工程学院,河北保定071003 [2]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《电力科学与工程》2007年第4期62-64,共3页Electric Power Science and Engineering

摘　　要：介绍了一种基于现场总线的智能氧化锆氧量分析仪,阐述了整个系统的结构以及温度控制系统的软硬件设计。该系统采用了基于专家智能与PID相结合的专家控制器,利用专家系统知识库输出修正PID参数,以改变PID控制方式。试验表明,总线智能氧化锆氧量分析仪的温度控制系统的精度、可靠性、可维护性和可测试性都得到了提高。A kind of intelligent zirconium oxide oxygen analyzer based on the fieldbus is introduced in this paper. The whole structure of the system and the hardware and the software design of the temperature control system are elaborated in detail. PID expert controller based on expert intelligent and PID is adopted in temperature control system . PID parameters are modified with output of knowledge base for expert system to change PID control mode. The result indicates that temperature control system of the fieldbus intelligent zirconium oxide oxygen analyzer has improved the precision, reliability, maintainability and testing ability of the insmmaention, which has lots of merits compared with the traditional oxygen analyzer.

关 键 词：现场总线 智能氧量分析仪 温度控制 专家系统 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]