Exact linearization of systems with transport delay (R2007a)

Hi everybody,

I'm fairly new to Matlab. I'd like to know, if there is a possibility to linearize a Simulink model so that the internal transport delay blocks are not Pade-approximated but exact.

In Simulink I have modeled a PT1 system with output-delay together with a PFC control algorithm and now I want to check the robustness of my control loop using the Lyapunov stability theorem in Matlab.

I have read about the function "linearize" which is able to do this, but it seems my Matlab version is too old and doesn't include that function. Is it possible to get the desired linearized model with the exact delay representation using another function or combination of those?

Thank you in advance.

Sascha

Answer 1

[Arnaud Miege]

The ability to generated linearizes model with exact time-delay representations was added in R2007b, see the Release Notes for Simulink Control Design. You will need to upgrade if you want to do this.

HTH,

Arnaud