Simulink variables initializtion problem

https://www.mathworks.com/examples/simpower/mw/sps_product-power_PVarray_250kW-250-kw-grid-connected-pv-array

According to this example, all initial variables are defines in power_PVarray_250kW_param.m. It seems that this m files is called at starting simulation. But when I make new simulink file, and even copyed all contents in power_PVarray_250kW.slx, but it doesn't worked.

There are error messages, "Error evaluating parameter 'NominalPower' in 'aaa/120 kV // 25 kV 47 MVA'"

My question is

1. How can I define initial values in simulink using m file 2. Is any options or method to eliminate error messages?

Thanks.

Answer 1

[Hyunsoo Park]

I found answer;

Menu File -> Model Properties -> Callbacks. In the "PreLoadFcn", you can use a load command. Variables are still stored in MATLAB workspace.

Answer 2

[Ben Rancici]

Are you sure that 'NominalPower' is well defined in 'power_PVarray_250kW_param.m'? If so, have you launched this .m file before running the Simulink?

[Hyunsoo Park]

In case of demonstration file, there is no need to launch m file. I want to automatically launch m file, when simulation starts