Adjustable electric reactor used for controlling electric energy quality

The invention relates to an adjustable electric reactor used for controlling electric energy quality. An electric reactor iron core is formed by clamping one I-shaped iron core between two E-shaped iron cores with opposite openings, wherein an adjusting winding and a reactance winding are wound on middle iron columns of the two E-shaped iron cores respectively; a pair of permanent magnets with opposite magnetizing directions are embedded on the I-shaped iron core; and the two permanent magnets are located between the two pairs of opposite openings of the E-shaped iron cores respectively. By changing current in the adjusting winding, the magnetic conductivity of the iron cores is changed, so that the reactance value is changed. The adjustable electric reactor is simple in structure, low in construction cost and convenience for utilization and can be used for controlling the electric energy quality.