Method for controlling a wind turbine generator having a rotor with plural magnets and a first stator winding and a second stator winding, electrically separated from the first stator winding, the rotor being adapted to rotate, around a rotation axis perpendicular to a radial direction, relative to the stator windings, the method comprising in order to reduce a load acting on a mechanical bearing supporting the running rotor (103, 104): allowing flow of a first electric current through the first stator winding, thereby generating a first radial force having a first magnitude and acting between the first stator winding and the rotor; allowing flow of a second electric current through the second stator winding, thereby generating a second radial force having a second magnitude and acting between the second stator winding and the rotor, wherein the first magnitude is different from the second magnitude resulting in a net generator generated radial force generated by the first stator winding and the second stator winding acting at the rotor, wherein the first stator winding is connected to a first converter controlling the first electric current, the first converter receiving a first current command, wherein the second stator winding is connected to a second converter controlling the second electric current, the second converter receiving a second current command different from the first current command, wherein the first current command is obtained as a sum of a first preliminary current reference (Idref1, Iqref1) and a first supplementary current (Idcc1, Iqcc1) both having components in the d-axis and the q-axis, wherein the second current command is obtained as a sum of a second preliminary current reference (Idref2, Iqref2) and a second supplementary current (Idcc2, Iqcc2) both having components in the d-axis and the q-axis, wherein the first supplementary current and the second supplementary current are based on at least one input signal, the at least one input signal comprising: a net generator generated radial force counteracting a gravitational force generated torque generated by a gravitational weight of a hub and rotor blades and a rotational position (Θm) of the rotor and a rotational speed (ωm) of the rotor, wherein the first preliminary current reference equals the second preliminary current reference, wherein the first supplementary current is different from the second supplementary current, wherein the first stator winding and the second stator winding are circumferentially adjacent to each other and form together a complete circumference, wherein the first stator winding is vertically arranged higher than the second stator winding. allowing flow of a first electric current through the first stator winding, thereby generating a first radial force having a first magnitude and acting between the first stator winding and the rotor; allowing flow of a second electric current through the second stator winding, thereby generating a second radial force having a second magnitude and acting between the second stator winding and the rotor, wherein the first magnitude is different from the second magnitude resulting in a net generator generated radial force generated by the first stator winding and the second stator winding acting at the rotor, wherein the first stator winding is connected to a first converter controlling the first electric current, the first converter receiving a first current command, wherein the second stator winding is connected to a second converter controlling the second electric current, the second converter receiving a second current command different from the first current command, wherein the first current command is obtained as a sum of a first preliminary current reference (Idref1, Iqref1) and a first supplementary current (Idcc1, Iqcc1) both having components in the d-axis and the q-axis, wherein the second current command is obtained as a sum of a second preliminary current reference (Idref2, Iqref2) and a second supplementary current (Idcc2, Iqcc2) both having components in the d-axis and the q-axis, wherein the first supplementary current and the second supplementary current are based on at least one input signal, the at least one input signal comprising: a net generator generated radial force counteracting a gravitational force generated torque generated by a gravitational weight of a hub and rotor blades and a rotational position (Θm) of the rotor and a rotational speed (ωm) of the rotor, wherein the first preliminary current reference equals the second preliminary current reference, wherein the first supplementary current is different from the second supplementary current, a net generator generated radial force counteracting a gravitational force generated torque generated by a gravitational weight of a hub and rotor blades and a rotational position (Θm) of the rotor and a rotational speed (ωm) of the rotor, wherein the first stator winding and the second stator winding are circumferentially adjacent to each other and form together a complete circumference, wherein the first stator winding is vertically arranged higher than the second stator winding.