超超临界1000 MW机组锅炉动态仿真模型  

Dynamic simulation model for ultra supercritical 1 000MW unit boilers

作　　者：徐蕙[1] 徐二树[2] 

机构地区：[1]华北电力大学控制与计算机工程学院,河北保定071003 [2]华北电力大学电站设备状态监测与控制教育部重点实验室,北京102206

出　　处：《热力发电》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)

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.

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 

分 类 号：TM621[电气工程—电力系统及自动化] TP391.9[自动化与计算机技术—计算机应用技术]