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	Application of nonlinear dynamic model combined with static model
	Kong Liang ; Ding Yan-jun ; Zhang Yi ; Zhang Xue ; Wu Zhan-song
	2010-10-12 ; 2010-10-12
关键词	Practical/ air pollution control artificial intelligence boilers neural nets power system analysis computing steam power stations/ nonlinear dynamic model static model thermal objects step responses adaptive dynamic model pulverized coal-fired boiler W-type flame artificial neural network nonlinear static model voltage 360 MV/ B8230E Steam power stations and plants B7720 Pollution detection and control C7410B Power engineering computing C6170K Knowledge engineering techniques C5290 Neural computing techniques/ voltage 3.6E+08 V
中文摘要	As the dynamic characteristics of thermal objects are usually acquired by step responses, nonlinearity makes those models effective only near static work conditions, an approach is proposed to realize an adaptive dynamic model based on a nonlinear static model. First, steady state of current inputs is estimated by static model, then these real-time static estimate results are applied to update the parameters depending on steady state in linear dynamic models, after that an adaptive nonlinear dynamic model is achieved and this model can be used in a relative long-range dynamic prediction. Both static and dynamic experiments were carried out in a 360 MV pulverized coal-fired boiler with W-type flame. Then, using ANN (Artificial Neural Network) a nonlinear static model was acquired based on 107 static data samples, and a series of linear dynamic models were obtained by 7 step response curves. Finally, these nonlinear adaptive model and linear model were used to predict NO/sub x/ emissions at the same time in two dynamic- processes at different loads, results show that the nonlinear adaptive model is much better than linear model to predict NO, emissions in dynamic process.
语种	中文
出版者	Chinese Society for Electrical Engineering ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79922]
专题	清华大学
推荐引用方式 GB/T 7714	Kong Liang,Ding Yan-jun,Zhang Yi,et al. Application of nonlinear dynamic model combined with static model[J],2010, 2010.
APA	Kong Liang,Ding Yan-jun,Zhang Yi,Zhang Xue,&Wu Zhan-song.(2010).Application of nonlinear dynamic model combined with static model..
MLA	Kong Liang,et al."Application of nonlinear dynamic model combined with static model".(2010).

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