Saturable reactor design and characteristic simulation

For the needs of suppression of the current changing rate of the high voltage direct current transmission (HVDC) converter valve, a saturable reactor is designed by using the analytical approach combined with the magnetic field approach. The 3-D finite element method is involved to get the inductance-current (L-I) characteristic curve. This paper sets up an experimental circuit and gets the current response curve, and then establishes the mathematical model of the experimental circuit. By comparing the experimental and simulation results, we found good agreement between the two. This proved that the reactor design is accurate and reliable.