1000MW超超临界机组FCB工况下凝汽器水位仿真研究  

Simulation on Condenser Water Level for 1000MW Ultra-super Critical Unit under FCB Condition

作　　者：韩鹏飞[1] 胡念苏[1] 万祥[1] 吕春杰[1] 魏冰洁 

机构地区：[1]武汉大学动力与机械学院,武汉430072 [2]武汉凯迪电力有限公司,武汉430200

出　　处：《汽轮机技术》2015年第2期121-124,92,共5页Turbine Technology

摘　　要：大型机组FCB(快速甩负荷带厂用电运行)试验工况下,凝汽器水位剧烈变化会威胁到机组的安全。针对这一问题,以某1 000MW机组75%负荷FCB试验和50%负荷FCB试验数据为依据,基于MATLAB/Simulink仿真平台建立了凝汽器仿真模型,仿真分析了凝汽器在FCB工况时水位变化特性。在此基础上,对100%负荷FCB工况下凝汽器水位进行了预测,通过之后的FCB试验验证了预测结果。The unit condenser water level changes dramatically under FCB（ Fast Cut Back） condition,threatening the safety of the condenser. To solve this problem,the changing mechanism of the condenser level is simulated with MATLAB /Simulink of a 1 000 MW ultra supercritical unit based on the experiment data of 75% FCB test and 50% FCB test. The condenser water level under the condition of 100% FCB test is forecasted and proved to be right with the experiment data.

关 键 词：FCB 凝汽器 热井水位 MATLAB/SIMULINK 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]