摘要
根据谏壁发电厂超超临界1 000MW机组直流锅炉结构和水冷壁内工质不同压力阶段的换热特点,采用变相变点方法建立了超超临界直流锅炉水冷壁热水段、蒸发段、过热段长度随锅炉负荷变化的动态仿真模型,并在此基础上,利用STAR-90仿真平台建立了谏壁发电厂超超临界1 000 MW机组直流锅炉实时动态仿真模型。对所建仿真模型的动静态特性试验表明,该模型具有良好的动、静态特性,能够准确模拟该机组的起动和停止过程及一些典型故障工况。
On the basis of heat transfer characteristics of working fluid at different pressures inside the water wall tube and structure of the ultra supercritical 1 000MW unit once through boiler in Jianbi Power Plant,the varying phase transformation point method was adopted to establish the moving-boundary dynamic simulation model of water wall in ultra supercritical once through boilers,especially the length variation of hot water section,evaporation section and superheat section against the load changing.On this basis,the real-time dynamic simulation model for ultra-supercritical 1 000 MW unit boiler in Jianbi Power Plant was built on the STAR-90simulation platform.The dynamic and static characteristics test showed that,this model can simulate the unit's startup/shutdown process and some typical fault conditions accurately,and had good dynamic and static performance.
出处
《热力发电》
CAS
北大核心
2013年第7期32-37,共6页
Thermal Power Generation
基金
国家自然科学基金资助项目(51006033)
国家高技术研究发展基金资助项目(863项目)(2007AA041106)
关键词
超超临界
1000
MW机组
直流锅炉
动态仿真模型
变相变点方法
STAR-90仿真平台
ultra supercritical
1 000 MW unit
once through boiler
dynamic simulation model
changing phase transformation point method
STAR-90simulation platform
