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在现代工业热电厂中的大多数热力系统都采用了计算机控制系统 ,计算机控制系统对于机组的正常安全运行 ,提高机组的经济运行水平 ,减轻运行人员劳动强度等都具有明显效果。事实上许多大型热电机组的正常运转离开了计算机控制系统根本不可能。为了给热力系统计算机监控系统的研制和调试提供一个可靠的实验平台 ,开展新的控制算法和控制理论应用研究 ,我们在清华大学热力系统控制国家重点实验室开发了热力系统监控实验台。它采用了世行贷款引进设备大型 PL C以及工业控制计算机等设备。可以对热电厂中的主要热力系统的计算机控制系统进行仿真和调试。利用该系统已经成功地对无锡双河尖热电厂的热网计算机监控系统 ,济南明湖热电厂的汽轮机监控系统 ,北京德宝锅炉房的链条锅炉控制系统等多套控制系统进行了调试。利用该系统已完成了采用机理法对煤粉锅炉进行建模与仿真。本文论述了该实验台的研制原理及构成特点。对其典型应用也进行了简单描述。
Most of the thermodynamic systems in modern industrial thermal power plants adopt computer control systems. Computer control systems have obvious effects on the normal and safe operation of units, raising the economic operation level of units and reducing the labor intensity of operators. In fact, the normal operation of many large thermoelectric units left the computer control system simply impossible. In order to provide a reliable experimental platform for the development and debugging of the computer monitoring system of the thermal system, a new control algorithm and control theory application research has been carried out. We have developed a thermal system monitoring and control bench in the State Key Laboratory of Thermal Power System Control of Tsinghua University. It uses the World Bank loan to introduce equipment such as large-scale PL C and industrial control computers and other equipment. The computerized control system of the main thermal system in the thermal power plant can be simulated and debugged. The system has successfully debugged the heat network computer monitoring system of Wuxi Shuanghe Thermal Power Plant, the steam turbine monitoring system of Jinan Minghu Thermal Power Plant and the chain boiler control system of Beijing Debao boiler room. The system has been completed using the mechanism of the pulverized coal boiler modeling and simulation. This article discusses the principle and composition of the experimental platform. A brief description of its typical application is also given.