针对电厂SIS系统组态的热力系统通用组件对象(COM)模型

针对电厂厂级监控信息系统(SIS)的特点要求,利用COM软件思想开发了热力系统各通用模块组件模型和通用热力系统模型组件,能自动根据组态软件产生的不同机组热力系统结构,构成热力系统对象实例,组件对象间通过接口通信传递能流和质流信息,在线计算并监测电厂热力系统各经济性能和能损。并以回热加热器和整体热力系统为例介绍了热力系统组件对象模型的开发方法,COM思想大大提高了SIS软件模块通用性、灵活性、重用性和可扩展性。

COM-based General Model of Thermodynamic System for the SIS in Power Plant

In this paper, development method of COM(Component Object Model), which is suit to the configuration of SIS (Supervisory Information System) in power plant, was introduced to establish the general model of thermodynamic system and its components. With those models, a thermodynamic system instance can be created with the configuration of an actual system, by means of communication between the interfaces of COM, performance calculation and energy-loss analysis can be carried out on-line. Finally, method of COM development was introduced with the example of heater and integrated thermodynamic system. The adoption of COM technique in SIS is conducive to the models' generalization, flexibility, re-usability and functional expansibility.