超超临界1000MW机组直流锅炉中间点温度建模  

Mathematical modeling of intermediate point temperature for an ultra supercritical 1000MW unit once-through boiler

作　　者：方彦军[1] 王振宇[1] 李鑫[1] 叶向前[2] 

机构地区：[1]武汉大学动力与机械学院,湖北武汉430072 [2]广东电网公司电力科学研究院,广东广州510600

出　　处：《热力发电》2014年第3期21-25,42,共6页Thermal Power Generation

基　　金：国家自然科学基金资助项目(61170024);中国博士后科学基金资助项目(2011M501234)

摘　　要：以东方锅炉股份有限公司制造的超超临界1 000MW机组锅炉为研究对象,根据质量守恒定律、能量守恒定律和金属热平衡定律,构建了与其相对应的中间点焓值机理模型。在建模过程中使用集中参数分多段的方法,经过线性化、偏差化处理得到了相应的传递函数,将该函数转化为矩阵形式。该模型能够反映直流锅炉中间点焓值在一定工况下的动态响应特性。Taking an ultra supercritical 1 000 MW unit boiler produced by Dongfang Boiler Co. , Ltd as the object,the intermediate point enthalpy mechanism model was established,according to the mass conservation principle, the energy conservation principle and the metal thermal equilibrium principle. During the modeling process, the lumped parameter segmentation method was employed. By linearization and deviation, the corresponding transfer function was obtained and finally transferred into matrix forms. This mechanism mathematical model can reflect the dynamic characteristics of the once-through boiler under research conditions to a certain extent.

关 键 词：超超临界 1 000 MW机组 直流锅炉 中间点温度 建模 

分 类 号：TM621[电气工程—电力系统及自动化] O231[理学—运筹学与控制论]