How can I create a variable inductance in a SimPowerSystems 5.5 (R2011b) model with a Phasor solver?

I'm trying to introduce a variable inductance in series with a transmission line. I have a two-area model that uses a phasor solution. I'm trying to incorporate the variable inductor model found in one of the examples. The problem is the inductor model was built for continous solution rather than phasor solution.

I've tried several alterations, but I do not fully understand the incompatabilities between the two solution types and how to fix the issue in order to get the variable inductance to work.

Answer 1

[MathWorks Support Team]

The "power_variableinductor" demo (>> power_VariableInductor) shows how a variable inductance inductor can be created with the "Continuous" solver. This example implements a subsystem that reads a voltage across its terminals, calculates the current for this voltage according to Faraday's Law with a variable inductance, and then outputs the correct voltage.

A similar approach is used for the Phasor solver. In this case, the equation relating voltage to current is "V = I*j*omega*L" where omega is the frequency of the current/voltage (the same as set for the Phasor solver) and L is the inductance. Similar to the continuous case, you can use this equation to calculate a complex current and then set the current to the answer. The attached model does just this.