I am getting an error "initial conditions not valid" in DigSilent. I defined my own PID and first order exciter for a synchronous generator. When I run calculate initial conditions I am getting the above error. I am wondering how one can fix this.
In have included the following initial conditions in the under Excitation system block diagram definition/Equations.
inc(x) = 0
inc(x1)= 0
inc(x2)= 0
-where x, x1 and x3 are state variables for the integrator, derivative and exciter blocks respectively.
Presume that your system is in steady state (steady state -> some signals are equal to zero). Then try to solve the equations of your transfer functions considering the input and outputsignals as variables. Your initial conditions should depend on these input or output variables (e.g. uerrs) .
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