Data-driven Multivariable Adaptive Predictive Control of Municipal Solid Waste Incineration Process
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摘要: 针对城市固废焚烧(Municipal solid waste incineration, MSWI)过程炉膛温度、烟气含氧量等关键工艺参数难以精准控制问题, 文中提出了一种数据驱动的多变量自适应预测控制方法. 首先, 通过引入操作变量约束和设计加权障碍函数, 构造无约束形式的目标函数以降低优化求解的复杂度. 其次, 提出了一种稀疏在线牛顿(Sparsified online Newton, SoNew)算法, 通过稀疏分解海森矩阵, 实现控制律的高效求解. 同时, 设计了针对多变量控制的加权系数动态分配策略, 能够根据实际运行状态自适应调整炉膛温度和烟气含氧量的权重, 进一步提升了控制效果. 此外, 对所提控制方法的可行性和稳定性进行了分析, 以确保其在实际应用中的可靠性. 最后, 采用MSWI厂实际运行数据验证了所提控制方法的可行性和有效性.
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关键词:
- 城市固废焚烧 /
- 多变量自适应预测控制 /
- 稀疏在线牛顿法 /
- 加权障碍函数 /
- 加权系数动态分配策略
Abstract: To address the issue of difficulty in precisely controlling key process parameters such as furnace temperature and flue gas oxygen content in the municipal solid waste incineration (MSWI) process, this paper proposes a data-driven multivariable adaptive predictive control method. Firstly, by introducing operational variable constraints and designing a weighted barrier function, an unconstrained form of the objective function is constructed to reduce the complexity of the optimization solution. Secondly, a sparse online Newton (SoNew) algorithm is proposed, which achieves efficient solution of the control law through sparse decomposition of the Hessian matrix. Meanwhile, a dynamic weighting coefficient allocation strategy for multivariable control is designed, which can adaptively adjust the weights of furnace temperature and flue gas oxygen content according to the actual operating state, further enhancing the control performance. Additionally, the feasibility and stability of the proposed control method are analyzed to ensure its reliability in practical applications. Finally, the feasibility and effectiveness of the proposed control method are verified using actual operation data from a municipal solid waste incineration plant. -
表 1 不同控制算法的比较结果
Table 1 Comparison results of different control algorithms
方法 炉膛温度 烟气含氧量 ISE IAE ITAE $ \bar{t}_t $ (s) $ \bar{t}_c $ (s) ISE IAE ITAE $ \bar{t}_t $ (s) $ \bar{t}_c $ (s) MPC-SQP 139820.0 10740.0 6800300.0 64.3 135.7 255.8 240.1 155250.0 182.0 77.0 MPC-GD 586080.0 12495.0 2844300.0 89.0 57.0 5633.3 1134.4 222270.0 242.3 241.7 MPC-Newton 501370.0 11919.0 3955900.0 58.7 21.3 4367.5 882.9 146610.0 72.0 93.7 MPC-SoNew 237080.0 8452.8 2850400.0 25.7 19.7 2637.1 622.3 131570.0 22.7 50.7 -
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