含能材料反应釜温度模型仿真辨识

Simulation and Identification of Reactor Temperature Model for Energetic Materials

目的验证一种基于遗忘因子最小二乘法(FFRLS)的含能材料反应釜温度预测模型辨识方法的正确性和有效性。方法首先利用基于机理建模方法对系统模型进行分段处理,并得到其具体结构,然后结合历史数据,利用FFRLS对系统模型参数进行辨识,最后得到含能材料反应釜温度仿真模型。结果在Matlab仿真平台上对该方法的正确性和有效性进行验证,模型参数慢时变状态下该方法辨识参数的模型参数均方根误差(RMSE)皆小于10%,模型参数突变状态下,参数RMSE最小为5.89%,最大为18.69%。结论该方法能准确、有效地对含能材料反应釜温度模型进行辨识。

Objective To verify the correctness and effectiveness of method for identifying temperature prediction model of the reactor with energetic materials based on Forgetting Factor Recursive Least-Squares （FFRLS） algorithm. Methods Firstly, the system model was segmented based on the mechanism modeling method, and its specific structure was obtained. Then, combined with historical data, FFRLS was used to identify the parameters of the system model, and finally the reactor tempera-ture simulation model of energetic material was obtained. Results The correctness and effectiveness of the method were verified on the Matlab simulation platform. In this method, the Root Mean Square Error （RMSE） of the time-varying model parameters was less than 10%. When the model parameters were mutated, the minimum RMSE of the parameters was 5.89% and the max-imum RMSE was 18.69%. Conclusion This method can accurately and effectively identify the reactor temperature model of energetic materials.