ControlLogix控制器在天然气配气站控制系统中的应用

Application of ControlLogix PAC in the Control System of Natural Gas Distributing Station

本文介绍罗克韦尔（A—B）ControlLogix PAC在天然气配气站控制系统中的应用。作者概述了该配气站的工艺流程；简介了以冗余的ControlLogix PAC为核心的该控制系统的拓扑架构、软硬件配置和主要功能。该文还着重对ControlLogix冗余系统的特点以及PID调节的无扰动重启和天然气流量计量两个关键环节进行了较为详细的阐述。

This paper deals with the application of Rockwell （A-B）＇s ControlLogix PAC to the control system of natural gas distributing station. The author gives a brief account of technological process of the natural gas distributing station and briefly states the topological architecture, the configuration of software and hardware and the main functions of the control system centering on redundant ControlLogix PACs as well. The article also elaborates the distinguishing features of redundant system of ControlLogix and the two key links of bumpless restart of PID regulator and the natural gas flow measurement.