What is the significance of solver methods of simulink in actual hardware experiments?

Hello everyone,

What is the relationship between the solver methods of Simulink (Runge-Kutta, Dormand-Prince, ode23t, etc.) and actual hardware?

Thank you.

[Shivani Dixit]

Hi Rahul,

I understand that you have a query regarding the relationship between Simulink Solver methods and hardware systems.

Different solver methods are available for various physical simulations. For example, if the model is stiff and can be reduced to an ODE, ode15s is the solver selected. For more information, refer to the following documentation:

Setting Up Solvers for Physical Models - MATLAB & Simulink (mathworks.com)

Also, let me know the meaning of "actual hardware" as presented in the query to help you support better.

[Rahul Subrahmanian]

Hi Shivani,

Consider I am simulating a buck converter in Simulink, and I have selected the ode23t solver. After verifying the simulation result, I need to build the hardware for the same buck converter. So where does this solver that we are selecting in simulation come into play while doing the hardware model? Please let me know if you need further clarification.

[Shivani Dixit]

Hi Rahul,

I understand that you are using ode23t solver for simulating Buck Convertor model in Simulink.

In general, ode solvers are hardware independent. They are well-documented algorithms that operate completely on the software side. You can select the solver according to the best preferred mix of speed and accuracy for your Buck Convertor model.

To get more information for ode23t and other related solvers you can refer to the below documentation:

Variable Step Solvers in Simulink - MATLAB & Simulink (mathworks.com)