赵靖华,胡云峰,刘洪涛,孙博,谭振江.Urea-SCR系统尿素喷射数据驱动预测控制研究[J].农业机械学报,2018,49(1):366-374.
ZHAO Jinghua,HU Yunfeng,LIU Hongtao,SUN Bo,TAN Zhenjiang.Design of Data-driven Predictive Controller for Urea Injection of Urea-SCR Systems[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(1):366-374.
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Urea-SCR系统尿素喷射数据驱动预测控制研究   [下载全文]
Design of Data-driven Predictive Controller for Urea Injection of Urea-SCR Systems   [Download Pdf][in English]
投稿时间:2017-05-18  
DOI:10.6041/j.issn.1000-1298.2018.01.046
中文关键词:  urea-SCR系统  数据驱动  预测控制  非线性
基金项目:国家自然科学基金项目(61773009、61520106008)、吉林省科技厅自然科学基金项目(20180101067JC)和吉林省教育厅“十三五”科学技术研究项目(JJKH20170379KJ)
作者单位
赵靖华 吉林师范大学
吉林大学 
胡云峰 吉林大学 
刘洪涛 吉林大学
长春一汽四环发动机制造有限公司 
孙博 长春一汽四环发动机制造有限公司 
谭振江 吉林师范大学 
中文摘要:为了同时实现较高的NOx转化效率和较低的NH3逃逸量这一矛盾的排放控制需求,基于数据驱动预测控制技术设计了一款urea-SCR系统尿素喷射控制器。数据来自某型号柴油机台架ETC瞬态循环测试试验,控制器直接由四输入及两输出(预测输出和约束输出)耦合激励再分离得出。基于系统的实际物理特性,在控制问题描述中明确考虑了输入输出量的时域约束。考虑到相对参考无偏的控制需求,预测方程采用增量型。台架测试表明,激励工况下,控制器能够满足优化问题提出的排放控制目标;非激励瞬态工况下,对于工况变化不确定性引起的干扰,控制器具有较好的鲁棒性。
ZHAO Jinghua  HU Yunfeng  LIU Hongtao  SUN Bo  TAN Zhenjiang
Jilin Normal University;Jilin University,Jilin University,Jilin University;Changchun FAW Sihuan Engine Manufacture Co., Ltd.,Changchun FAW Sihuan Engine Manufacture Co., Ltd. and Jilin Normal University
Key Words:urea-SCR systems  data-driven  predictive control  nonlinear
Abstract:Urea selective catalytic reduction (urea-SCR) systems are well known for exhaust gas aftertreatment in power plant applications. Stringent specifications and the dynamic operation mode of such applications demand advanced control strategies. The control purpose of urea-SCR is to simultaneously achieve high NOx conversion efficiency and low ammonia slip. The two emission demands are contradictory. Moreover, owing to the dynamic operation mode of urea-SCR systems, advanced control strategies are required to improve urea injection control. A data-driven predictive controller for urea injection was designed. The input-output data were directly obtained from ETC driving cycle test of the diesel engine bench. The controller was derived by the coupling excitation and separation of the data. Because of the physical characteristics, the input and output constraints were considered explicitly in the problem formulation. In order to obtain offset-free control for the reference input, the predictor equation was gained with incremental inputs and outputs. The experimental test was carried out in ETC and other transient test cycle. The results showed that the controller was able to meet emission control requirements under the excitation test cycle. The closed-loop system had the ability to reject uncertainties caused by uncertainty of working conditions under the non-excitation test cycle.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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