I try to simulate the dynamic behavior of the short circuit of a synchronous machine, starting from no load.
A well-known method is to make an electric circuit in the electric machine and make a short circuit at the terminals. I made such a circuit by means of the Circuits and Dynamics Solver.
The idea is to start with a very large resistance (no-load condition) which is made very low at the moment of the short circuit.
I tried to change the resistance of a component by
Code: Select all
Component 1 ! aPlus
Master Bodies (1) = Integer 4 ! aPlus
Coil Type = String Stranded
Number of Turns = Real 2
Resistance = Variable time
Real
0.00000 10.0
0.03626 10.0
0.03627 0.01
1.00000 0.01
End
End
ERROR:: ListGetConstReal: Constant cannot depend on variables: Resistance
A trick that worked was to change the Electric Conductivity of the Material of the corresponding Body as a function of time. However in my case that would mean that I would have to make such a change in my material library. That is a quite dirty trick (for me).
Does anyone have a better idea to make a change in an electric circuit?
With kind regards,
Martin Hoeijmakers