| 电站锅炉过热器系统动态建模及现场数据仿真 |
| |
| 引用本文： | 陈旭,王景成.电站锅炉过热器系统动态建模及现场数据仿真[J].微型电脑应用,2011,27(1):21-23,5. |
| |
| 作者姓名： | 陈旭 王景成 |
| |
| 作者单位： | 上海交通大学自动化系,上海,200240 |
| |
| 基金项目： | 国家863项目(No.2007AA041403,2009AA04Z162); 教育部新世纪人才计划(No.NCET-08-0359) |
| |
| 摘 要： | 基于机理分析法建立了电站锅炉过热器系统的集总参数模型,反映了过热器出口主蒸汽压力、温度和流量的动态特性。结合实际运行数据拟合求取了模型所需参数,无需对实际系统进行扰动实验。采用多项式和最小二乘法拟合了一定范围内水和水蒸气的物理性质计算公式,利用机组大范围变负荷条件下的实测数据对模型进行了验证仿真。结果表明,该模型的输出与实际运行数据趋势基本一致,能够用于在线实时仿真。
|
| 关 键 词： | 过热器 机理建模 集总参数法 多项式拟合 模型验证 |
Dynamic Modeling for Utility Boiler Super-heater System and Simulation by Using Online Plant Data |
| |
| Chen Xu,Wang Jingcheng.Dynamic Modeling for Utility Boiler Super-heater System and Simulation by Using Online Plant Data[J].Microcomputer Applications,2011,27(1):21-23,5. |
| |
| Authors: | Chen Xu Wang Jingcheng |
| |
| Affiliation: | Chen Xu,Wang Jingcheng(Department of Automation,Shanghai Jiaotong University,Shanghai 200240,China) |
| |
| Abstract: | Based on mechanism analysis, a lumped parameter model of utility boiler super-heater system is developed. The model shows the dynamic properties of the main steam pressure, temperature and flow. Combining with the actual operation data, the parameter of the model can be fitted without testing the actual boiler system. In this paper, polynomials and least-squares were uses to fit physical properties formula of water and water vapor. This model is validated by using the actual data over a large varying range ... |
| |
| Keywords: | Super-heater Mechanism Modeling Lumped Parameter Method Polynomial Fitting Model Validation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
