NN Predictive Controller for MIMO systems

Good morning

I'm trying to realize a NN predictive controller for a system (which I only have as a neural network) with more than one manipulated value for a project at the uni.

The Problem is, whenever I try to do the system identification with the data of my planet it gives me the error message "The input and output arrays mut be row (1*N) or column (N*1) variables".

And I'm stuck right there, so could someone help me?

Is there any way to implement the NN predictive controller for MIMO or MISO systems?

many thanks in advance

[Sam Chak]

@Abdulhamid Jalab, How does it work?

[Nohayla Ajmi]

I would like to know about it too.

[Sam Chak]

Hi @Nohayla Ajmi, do you have the mathematical model of your MIMO system?

[Nohayla Ajmi]

hello @Sam Chak, No there is no mathematical or physical model of the system I would like to model it using measurement data. I have been able to build predictive models using muti-inputs and I would like to make a control law ( Otherwise if this is not possible I would like to at least know and prove if the system is controlable/observable or not)

[Sam Chak]

@Nohayla Ajmi, thanks for your reply. If your ultimate goal is to a design a control law, perhaps you can try to estimate the model using some techniques in the System Identification Toolbox.

[bahouli hakima]

@Abdulhamid Jalab did you know how to implement the nn predictive controller with MIMO system, please if yes let me know how..

Answer 1

[Manikanta Aditya]

Hi Abdulhamid,

Looks like you are trying to realize a NN predictive controller for a system with more than one manipulated value for a project. Then you are a error and also you would like if there is a way to implement the NN predictive controller for MIMO or MISO systems.

Regarding the error ‘The input and output arrays mut be row (1*N) or column (N*1) variables’, the issue seems to be with the dimensions of the input and output arrays. When working with matrices or arrays, you need to ensure that the dimensions match the expected format. You might need to transpose your array to match the expected format.

Model Predictive Control (MPC) is a method that can be used for controlling systems. MPC uses a model of the system to predict future behavior and optimize the process over a defined time period.

Please refer to the following reference to know more about

• MIMO using Model Predictive Control: https://eng.libretexts.org/Bookshelves/Industrial_and_Systems_Engineering/Chemical_Process_Dynamics_and_Controls_%28Woolf%29/12%3A_Multiple_Input_Multiple_Output_%28MIMO%29_Control/12.03%3A_MIMO_using_model_predictive_control

Hope it helps!