| Popis: |
The SCR reaction is a complex multi-step reaction process under the action of a catalyst under high temperature conditions, which is affected by various factors such as reaction temperature, wind speed and flow field distribution, and the effects of these factors vary with load. From a control point of view, there is a load-dependent nonlinear relationship between the manipulated variable (amount of ammonia injected) and the controlled variable (exported NOx). It is difficult to obtain the ideal control quality with a simple PID control scheme. In this paper, the model predictive control algorithm is used to accurately describe the characteristics of the SCR reaction process, and the model can be used to derive the ammonia amount, which can significantly improve the ammonia injection. Control quality of the SCR denitration system.The SCR reaction is a complex multi-step reaction process under the action of a catalyst under high temperature conditions, which is affected by various factors such as reaction temperature, wind speed and flow field distribution, and the effects of these factors vary with load. From a control point of view, there is a load-dependent nonlinear relationship between the manipulated variable (amount of ammonia injected) and the controlled variable (exported NOx). It is difficult to obtain the ideal control quality with a simple PID control scheme. In this paper, the model predictive control algorithm is used to accurately describe the characteristics of the SCR reaction process, and the model can be used to derive the ammonia amount, which can significantly improve the ammonia injection. Control quality of the SCR denitration system. |
