城市固废焚烧过程烟气含氧量自适应预测控制

孙剑; 蒙西; 乔俊飞

doi:10.16383/j.aas.c210935

城市固废焚烧过程烟气含氧量自适应预测控制

doi: 10.16383/j.aas.c210935

孙剑^{1, 2, 3,},
蒙西^{1, 2, 3,},
乔俊飞^{1, 2, 3,}

1.
北京工业大学信息学部北京 100124
2.
智慧环保北京实验室北京 100124
3.
智能感知与自主控制教育部工程研究中心北京 100124

基金项目: 国家自然科学基金(62021003, 61890930-5, 61903012), 科技创新2030 —— “新一代人工智能”重大项目(2021ZD0112301, 2021ZD0112302)资助

详细信息

作者简介:
孙剑：北京工业大学信息学部博士研究生. 主要研究方向为复杂工业过程数据驱动建模与智能控制. E-mail: sun8927@163.com

蒙西：北京工业大学信息学部副教授. 主要研究方向为神经网络, 学习系统和工业过程建模与控制. E-mail: mengxi@bjut.edu.cn

乔俊飞：北京工业大学信息学部教授. 主要研究方向为神经网络, 智能系统和复杂工业过程建模与优化控制. 本文通信作者. E-mail: adqiao@bjut.edu.cn

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出版历程
- 收稿日期: 2021-09-29
- 录用日期: 2022-02-10
- 网络出版日期: 2022-05-08
- 刊出日期: 2023-11-22

Adaptive Predictive Control of Oxygen Content in Flue Gas for Municipal Solid Waste Incineration Process

SUN Jian^{1, 2, 3
,},
MENG Xi^{1, 2, 3
,},
QIAO Jun-Fei^{1, 2, 3
,}

1.
Faculty of Information Technology, Beijing University of Technology, Beijing 100124
2.
Beijing Laboratory of Smart Environmental Protection, Beijing 100124
3.
Engineering Research Center of Intelligence Perception and Autonomous Control, Ministry of Education, Beijing 100124

Funds: Supported by National Natural Science Foundation of China (62021003, 61890930-5, 61903012) and National Key Research and Development Program of China (2021ZD0112301, 2021ZD0112302)

More Information

Author Bio:
SUN Jian　Ph.D. candidate at the Faculty of Information Technology, Beijing University of Technology. His research interest covers data-driven modeling and intelligent control of complex industrial processes

MENG Xi　Associate professor at the Faculty of Information Technology, Beijing University of Technology. Her research interest covers neural networks, learning systems, and industrial process modeling and control

QIAO Jun-Fei　Professor at the Faculty of Information Technology, Beijing University of Technology. His research interest covers neural networks, intelligent systems, and modeling and optimal control of complex industrial processes. Corresponding author of this paper

摘要

摘要: 在城市固体废弃物焚烧(Municipal solid waste incineration, MSWI)过程中, 烟气含氧量是影响焚烧效果的重要工艺参数. 由于固废焚烧过程的复杂性, 在实际应用过程中, 难以实现烟气含氧量的有效控制. 面向城市固废焚烧过程烟气含氧量控制的实际需求, 提出一种基于数据驱动的烟气含氧量自适应预测控制方法. 首先, 采用自适应模糊C均值(Fuzzy C-means, FCM)算法辅助确定径向基函数(Radial basis function, RBF)神经网络隐含层神经元个数及初始中心, 建立基于FCM算法的径向基函数神经网络预测模型, 并在控制过程中通过自适应更新策略在线调节预测模型参数; 然后, 利用梯度下降算法求解控制律, 并基于李雅普诺夫理论分析了所提控制方法的稳定性; 最后, 基于城市固废焚烧厂实际数据, 验证了所提控制方法的有效性.
- 城市固体废物焚烧 /
- 烟气含氧量 /
- 自适应预测控制 /
- 径向基函数神经网络 /
- 梯度下降
Abstract: Oxygen content in flue gas is an important process parameter for incineration efficiency in municipal solid waste incineration (MSWI). Due to the complexity of municipal solid waste incineration process, it is difficult to achieve effective control of oxygen content in flue gas in practical application. A data-driven adaptive predictive control method for oxygen content in flue gas in MSWI process is proposed in this paper. Firstly, an adaptive fuzzy C-means (FCM) algorithm is used to determine the number of hidden layer neurons and the initial clustering center of radial basis function (RBF) neural network model, and the radial basis function neural network prediction model based on FCM algorithm is established. During the control process, the prediction model parameters are adjusted adaptively by an online updating strategy. Then, the gradient descent method is exploited to solve the control law, and the stability of the control system is analyzed based on the Lyapunov theory. Finally, the effectiveness of the proposed control method is verified based on the actual data of the municipal solid waste incineration plant.
- Municipal solid waste incineration (MSWI) /
- oxygen content in flue gas /
- adaptive predictive control /
- radial basis function neural network /
- gradient descent

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图 1 MSWI炉排炉工艺流程

Fig. 1 MSWI process with grate furnace

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图 2 烟气含氧量自适应FCM-RBF-MPC策略

Fig. 2 Adaptive FCM-RBF-MPC strategy of oxygen content in flue gas

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图 3 RBF神经网络结构图

Fig. 3 RBF neural network framework

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图 4 不同建模方法的烟气含氧量预测效果

Fig. 4 Prediction effect of oxygen content in flue gas with different modeling methods

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图 5 FCM-RBF-MPC和自适应FCM-RBF-MPC控制效果

Fig. 5 Control results of FCM-RBF-MPC and adaptive FCM-RBF-MPC

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图 6 FCM-RBF-MPC和自适应FCM-RBF-MPC的操作变量变化情况

Fig. 6 Changes of manipulated variables of FCM-RBF-MPC and adaptive FCM-RBF-MPC

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图 7 反馈校正误差补偿变化情况

Fig. 7 Changes of feedback correction error compensation

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表 1 输入/输出变量变化范围

Table 1 Range of input and output variables

变量名	变量符号	变化范围
干燥炉排一次风流量(km³/h)	$x_{p1}$	10.75 ~ 14.76
燃烧炉排1一次风流量(km³/h)	$x_{p2}$	25.90 ~ 35.56
燃烧炉排2一次风流量 (km³/h)	$x_{p3}$	11.25 ~ 15.72
燃烬炉排一次风流量(km³/h)	$x_{p4}$	2.27 ~ 5.06
二次风流量(km³/h)	$x_{s}$	18.91 ~ 21.84
烟气含氧量 (%)	$y_o $	4.6 ~ 7.6

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表 2 操作变量与烟气含氧量的皮尔森相关系数

Table 2 Pearson correlation coefficient between manipulated variables and oxygen content in flue gas

操作变量名	操作变量符号	$\gamma$
干燥炉排一次风流量	$x_{p1}$	−0.4303
燃烧炉排1一次风流量	$x_{p2} $	0.3015
燃烧炉排2一次风流量	$x_{p3} $	−0.1034
燃烬炉排一次风流量	$x_{p4} $	0.0697
二次风流量	$x_{s} $	0.1413

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表 3 不同建模方法的烟气含氧量预测评价指标对比

Table 3 Comparison of prediction evaluation indexes of oxygen content in flue gas with different modeling methods

模型	MAE	MAPE	RMSE
MLP	0.0467	0.0086	0.0585
RBF	0.0357	0.0065	0.0449
FCM-RBF	0.0307	0.0056	0.0417

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表 4 不同RBF神经网络预测控制器性能指标对比

Table 4 Comparison of evaluation indexes of different RBF neural network predictive controllers

控制器	IAE	ITAE	Dev^max
RBF-MPC	0.0056	4.3874	0.4991
FCM-RBF-MPC	0.0043	3.0002	0.4949
自适应RBF-MPC	0.0045	3.4617	0.4335
自适应FCM-RBF-MPC	0.0031	2.4152	0.4226

下载: 导出CSV

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