Alstom气化炉控制基准问题的分析研究

Analysis and Research on the Benchmark Problem of Alstom Gasifier Control

气化炉控制基准问题是对一类多变量、强耦合、非线性的系统模型进行控制的问题。针对这一模型首先采用间隙测度的方法对其进行了的非线性度的分析,并进行了线性化处理;结合RGA在分散控制中确定操纵变量和被控变量之间的配对关系的方法,引入了一种改进的、实用的回路变量配对的准则,考虑了系统的动态行为。最后根据分析结果,给出了系统的控制结构的设计方案。

The gasifier control benchmark problem is an issue associated with the control of the multi-variables,strong coupling and nonlinear system model.A nonlinear degree analysis using the gap metric method and linearization operation is carried out for the model firstly.Considering the dynamic behavior of the system,the paper adopts a modified and practical loop variables pairing rule combined with the RGA method in the decentralized control to determine the relationship between the manipulated variables and the controlled variables.Finally the system control structure is proposed in the paper.