In wind turbine with induction generator system, I keep getting NAN EM torque. How to fix this?
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I am trying to simulate an induction generator-based wind turbine system connected to an infinite bus through 2 transmission lines. I am using double squirrel cage generator and the input is the speed in perunit. I compute the speed using a small block for the swing equation Tem-Tm=Jdw/dt (and Wm=Wg) but for now I am fizing it to 1.09. The EM torque from the generator gives me NAN no matter what I change. Does anyone know how to fix this issue?
Peter O on 16 Mar 2022
So you're generating, fixing the rotor speed of the machine to 1.09 per unit and supplying the machine from an infinite 3-phase bus (leaving just torque and currents as unknowns), but the output you're getting back is NaN? What are the parameters of the machine? To confirm, the infinite bus is running at 1.0 PU, with its frequency set to 1.0?