CAJ | 학술논문

以泰州电厂1000 MW超超临界机组为对象,对超超临界机组的动态特性进行了研究,通过机理分析和模型简化,采用集中参数的方法,建立了从省煤器、蒸发受热面、过热器到汽轮机的综合模型.建模过程中,将相变点的位置作为独立变量置入模型,成功解决了超超临界工况下机组动态仿真所面临的问题.并进行了二次建模,便于计算机的仿真实现.在仿真模型上进行了阶跃扰动试验,试验结果与实际机组的动态特性基本一致.该模型的建立为超超临界机组系统工程分析和仿真机的开发打下了良好的基础.
이태주전엄1000 MW초초림계궤조위대상,대초초림계궤조적동태특성진행료연구,통과궤리분석화모형간화,채용집중삼수적방법,건립료종성매기、증발수열면、과열기도기륜궤적종합모형.건모과정중,장상변점적위치작위독립변량치입모형,성공해결료초초림계공황하궤조동태방진소면림적문제.병진행료이차건모,편우계산궤적방진실현.재방진모형상진행료계약우동시험,시험결과여실제궤조적동태특성기본일치.해모형적건립위초초림계궤조계통공정분석화방진궤적개발타하료량호적기출.
Taking the 1 000 MW ultra-supercritical power unit in Taizhou Power Plant as an object of study,a comprehensive model has been built up covering the economizer,steam generator,superheater and steam turbine,using lumped-parameter method through mechanism analysis and model simplification,so as to study the dynamic characteristics of the unit.In above modeling processes,the position of phase transition point is taken as independent variables,to solve the problem previously encountered by the unit during dynamic simulation under ultra-supercritical conditions.To facilitate computer simulation,twice-step modeling is carried out,with which step disturbance tests are performed.The test results basically agree with the dynamic characteristics of actual system.This may serve as a reference for engineering analysis and simulator development of ultra-supercritical power units.