控制工程 ›› 2019, Vol. 26 ›› Issue (8): 1544-1549.

• 工业过程及控制系统 • 上一篇    下一篇

基于CNN预测的电厂热能联合循环控制研究

  

  • 出版日期:2019-08-20 发布日期:2023-10-31

Research on Power Plant Thermal Energy Combined Cycle Control Based on CNN Prediction

  • Online:2019-08-20 Published:2023-10-31

摘要: 为提高电厂热能循环控制的精度和稳定性,采用一种基于卷积神经网络的模型自适应监督预测的环控制算法。设计了采用卷积神经网络(Convolutional Neural Network, CNN)进行电厂热能循环的自适应学习模型,解决辨识模型不能根据真实工况进行自适应调整的问题,提高了预测模型的精度;针对所设计控制系统,设计了状态反馈自适应控制器,并对所设计控制器的渐进稳定性进行了证明,为应用提供了理论基础;通过在电厂锅炉汽机联合循环控制上的仿真测试,显示所提方法相对于传统的PID控制算法和广义预测控制算法。

关键词: 卷积神经网络, 自适应, 监督预测, 热能循环, 预测控制

Abstract:  In order to improve the precision and stability of thermal cycle control in power plant, a new model based on convolution neural network was proposed. Firstly, according to the thermal cycle control problem, design the adaptive thermal cycle learning model using convolutional neural network(CNN), the problem that the identification model can not be adjusted adaptively according to the actual working condition is solved, improve the prediction accuracy of the model; Secondly, the state feedback adaptive controller is designed for the designed control system, and the asymptotic stability of the controller is proved, which provides a theoretical basis for the application; Finally, the simulation test on the boiler and turbine combined cycle control in the power plant shows that the proposed method is superior to the traditional PID control algorithm and the generalized predictive control algorithm. And the convergence rate is relatively faster, with better control performance.

Key words: Convolutional neural network, adaptive, supervised prediction, thermal cycle, predictive control