摘要
以国产超超临界1 000MW机组为研究对象,建立了机组运行参数基准值计算模型、机组运行参数经济性分析模型及耦合热力系统变工况模型,研究机组运行参数变化对机组经济性影响的电负荷特性及环境特性。结果表明,排汽压力对机组经济性影响最大,而主蒸汽参数、再热蒸汽参数偏低对机组经济性也有明显影响,并且与电负荷和环境温度具有明显的耦合性。
Taking the home-made ultra-supercritical 1000 MW unit as object of study,a calculation model of reference value for operational parameters of unit,an economic analysis model for operational parameters of unit,and a coupled off-design model of the thermal system have been established,the influence of unit load variation upon the economic efficiency of unit,as well as upon the electric load of unit and environmental properties,being studied,results of study show that the influence of exhaust steam pressure upon the economic efficiency of unit is the greatest,the influence of main steam parameters is also substantial,and having remarkable coupling behavior with the electric load and the ambient temperature.
出处
《热力发电》
CAS
北大核心
2011年第10期46-49,共4页
Thermal Power Generation
基金
国家重点基础研究计划资助项目(973)(No.2009CB219803)
关键词
超超临界
1000MW机组
排汽压力
主蒸汽
再热蒸汽
电负荷特性
环境特性
ultra-supercritical
1000 MW unit
exhaust steam pressure
main steam
reheated steam
electric load behavior
environment property
