CAJ | 학술논문

由于传热机理复杂,形式简单的、适用于实时在线计算的锅炉传热模型精度通常不高.利用偏最小二乘回归方法建立了锅炉传热量预测模型.该方法将建模预测类型的数据分析方法与非模型式的数据认识分析方法有机地结合起来,有效的克服了自变量的多重相关性.基于偏最小二乘回归的锅炉传热量预测模型精度高,物理意义明确,较普通最小二乘回归模型更合理的解释了锅炉传热机制.该建模方法可用于船舶蒸汽动力系统等大型动力系统的仿真以及基于模型的控制系统研究.
유우전열궤리복잡,형식간단적、괄용우실시재선계산적과로전열모형정도통상불고.이용편최소이승회귀방법건립료과로전열량예측모형.해방법장건모예측류형적수거분석방법여비모형식적수거인식분석방법유궤지결합기래,유효적극복료자변량적다중상관성.기우편최소이승회귀적과로전열량예측모형정도고,물리의의명학,교보통최소이승회귀모형경합리적해석료과로전열궤제.해건모방법가용우선박증기동력계통등대형동력계통적방진이급기우모형적공제계통연구.
Due to the complexity of heat transfer mechanism, heat transfer model in furnace with simple form and applying to real-time calculation accuracy usually has a low accuracy.By using partial least squares regression (PLSR) method the boiler heat transfer model was established. This method combines the forecasting by means of model with non-model style data connotation analysis, thus, the model by mean of PLSR overcomes multivariable correlativity. The prediction model for boiler heat transfer based on PLSR has high accuracy, clear physical meaning, and more reasonable explanation to heat transfer mechanism of boiler, as compared with the ordinary least-squares regression model. The modeling method presented in this paper can be used for simulation and model-based control system design on ships steam power system and other large power system.