  Continuously Variable Series Reactor (CVSR) can regulate its reactance on the
ac side using the nonlinear ferromagnetic core, shared by an ac and a dc
winding for applications like power flow control, oscillation damping, load
balancing and others. In order to use a CVSR in the power grid, it is essential
to know its operating characteristics. The Gyrator-Capacitor approach has been
applied to model the magnetic circuit coupled with the electrical circuit. In
the paper, we investigate the CVSR behavior in terms of induced voltages across
the dc winding, flux densities (B) through the core legs, and power exchange
between the ac controlled and the dc control circuit.
