中文摘要：

以船用锅炉汽包水位为研究对象,给出了水位的控制方法及数学模型,并运用Matlab软件进行建模与仿真.在此基础上,采用S7-400为主控制器,构建了船用锅炉汽包水位控制系统.在PCS7的软件环境下编写了控制软件,在上位机软件WinCC中设计了监控界面,实现了汽包水位控制系统的控制与监控.系统仿真结果分析证明该方法是可行的.

英文摘要：

This paper studies the drum water level of a ship. A control method and mathemati-cal model were given, and Matlab was used for modeling and simulation. On this basis, a water lev-el control system of marine boiler drum was constructed with S7-400 as the main controller. The control program was written using the software PCS7, with the monitoring interface developed in a PC with WinCC. Control and monitoring were achieved for drum water level control. Analysis of the simulation results show feasibility of the method.