新一代B/S结构DCS火电控制系统设计与实现

A New Generation of B/S Structure of DCS Thermal Power Control System Design and Implementation

摘要:

传统的C/S结构DCS火电控制系统设计方法,上位机与服务器通信中,服务器需要与多个操作员站通信,造成负荷过高;为解决这一问题,以和利时第五代DCS为基础,设计新一代基于B/S模式的DCS数据监控系统,以点对点模式完成通信;新一代系统中,服务器相对于每个操作员站都是独立的,克服当前系统同时通信高负荷的弊端;给出了关键的底层控制站信息采集模块和DP总线信息传递模块的详细设计方案以及相关的软件设计方案,并给出了关键的B/S结构的详细设计方案;实验结果表明,以B/S结构为基础的 DCS数据监控系统测量结果误差小,上位机通信的时长不超过1 s,服务器冗余重启切换不超过1.2 s,优化效果较为明显。

Abstract:

In view of the traditional C/S structure of DCS thermal power control system design method of PC to communicate with the server, the server needs to communicate with more than one operator station, the load is too high, in order to solve this problem, design a new generation of DCS data monitoring system based on B/S mode, in point to point mode to complete communication, server relative to each operator station is independent, to overcome the disadvantages of the current communication system at the same time the high load. Gives the key underlying control station information acquisition module and DP bus information transmission module of detailed design and related software design, and gives the detailed design scheme of key of B/S structure. Experimental results show that based on B/S structure of DCS data monitoring system of the measurement error is small, the length of the upper machine communication less than 1 s, redundant server restart switch is not more than 1.2 s, the optimization effect is more obvious. 