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中文摘要：
通过合理简化和机理分析，以国电泰州电厂1000MW超超临界机组为研究对象，将机组简化为蒸汽发生器、汽水分离器、过热器和汽轮机四部分，各个环节采用机理或实验及其综合的方法建立集总参数模型。按照对象结构以及工质的传热和流动状况，将各环节连接，得到便于仿真的整体模型。研究了锅炉主要调节量（给水流量、燃烧率、汽机调门开度）对机组动态特性的影响，仿真结果表明，该数学模型是合理有效的，从而为超超临界直流炉系统工程分析和大规模火电厂仿真机的开发打下了良好的基础。
英文摘要：
By reasonable simplifying and mechanism analysis, this paper simplifies the unit to four parts including the steam generator, separator, superheater and steam turbine, which have been established lumped-parameter model using mechanism method, experiment method, and the integrated method, based on specific features of 1 000 MW ultra-supercritical once-through boiler in Taizhou power plant. According to the object structure, the heat transfer and flow conditions of refrigerant, the links to the overall simulation model have been found, and the effect of the boiler main adjustment variables which include water flow, burning rate and the opening of turbine valve, to dynamic charaeteristic of the unit have been studies. Simulation results show that the mathematical model is reasonable and effective. So the establishment of this model makes good foundation for the system engineering analysis of ultra-supercritical once-through boiler and the development of large-scale power plant simulator.
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