论文标题
在快速载荷动态下的蒸汽锅炉的新型建模和控制策略
Novel Modelling and Control Strategies for a Steam Boiler under Fast Load Dynamics
论文作者
论文摘要
本文描述了一种新的自然循环锅炉的非线性动力学模型。该模型基于物理原理，即质量，能量和动量平衡。遵循系统的方法，导致对鼓水水平和下降质量流的物理学的新见解。该模型捕获了在高度可变的负载条件下描述锅炉操作所必需的快速动态响应。该模型的新功能包括（i）升起剂的多室模型，（ii）鼓水水平的新模型，以及（iii）下降器中水流的新动态模型。该模型对控制系统设计的含义将详细探讨。最后，建议的改进在糖厂锅炉中得到了验证。
This paper describes a new nonlinear dynamic model for a natural circulation boiler. The model is based on physical principles, i.e. mass, energy and momentum balances. A systematic approach is followed leading to new insights into the physics of drum water level and downcomer mass flow. The model captures fast dynamic responses that are necessary to describe the operation of a boiler under highly variable load conditions. New features of the model include (i) a multi-compartment model for the risers, (ii) a new model for drum water level, and (iii) a new dynamic model for the flow of water in the downcomers. Implications of the model for control system design are explored in detail. Finally, the suggested improvements are validated in a sugar mill boiler.
