CAJ | 학술논문

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1000MW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。
대형궤조FCB（쾌속솔부하대엄용전운행）시험공황하，응기기수위극렬변화회위협도궤조적안전。침대저일문제，이모1000MW궤조75％부하FCB시험화50％부하FCB시험수거위의거，기우MATLAB／Simulink방진평태건립료응기기방진모형，방진분석료응기기재FCB공황시수위변화특성。재차기출상，대100％부하FCB공황하응기기수위진행료예측，통과지후적FCB시험험증료예측결과。
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 000MW 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 .