Model Predictive Control Toolbox

Dear all,

The problem is about "MPC block"(model predictive control) in MatLAB 7.0.

I drew the diagram of the control system in simulink. I added the "MPC block" from "Model Predictive Control Toolbox" to my control system.

After that, I double clicked the MPC block, one dialog box named "MPC Simulink Block" showed up.

Then I pressed the button "design".

After I pressed the button "design", MATLAB began to "build MPC Design Project".

After a while, a message box showed up and told me: "Could not assign linearization i/o. Message returned was:Error using==> mpcblockiotable Linearization mismatch between block i/o and linearization i/o"

I don't know why.

Answer 1

[Arkadiy Turevskiy]

The question author provided me with the model to look at. The problem in this case happens due to the way plant model is implemented. It is done using level-1 MATLAB s-functions. The way these functions are written prevents them from linearizing correctly, causing the error message.

The recommendation is to use standard state-space and transfer function blocks for the plant model if possible.

Arkadiy

Answer 2

[Edwin Red Estofanero Larico]

Dear All, I would like to know what type of Predictive Control is the block MPC controller of Simulink, why could I know if this MPC controller is DMC(Dynamic Matrix Control), GPC(Generalized Predictive Control), UPC, etc?

Best regards Edwin