Loading patent…
AssigneeMitsubishi Electric Corporation
InventorsMasahiko ORII, Tatsuya MORI, Hiroko IKEDA, Toshihiro MATSUNAGA, Kenji IKEDA, Kenta KUBO
Estimating the term…
In an electric motor control device which controls rotation of an AC electric motor having two sets of three-phase windings and provided with a resolver having two systems by calculating voltage command values on dq axes, dq conversion of currents of first three-phase windings is performed using a first angle calculated from output of the first system of the resolver, and dq conversion of currents of second three-phase windings is performed using a second angle calculated from output of the second system of the resolver. With both d-axis current command values set at the same value, respective voltage command values on dq axes are calculated and respectively converted into voltage command values for voltage application to the first three-phase windings, using the first angle, and converted into voltage command values for voltage application to the second three-phase windings, using the second angle.
An electric motor control device configured to control rotation of an AC electric motor having first three-phase windings and second three-phase windings and provided with a resolver in which a plurality of teeth provided to a stator are wound with a first excitation winding and a first output winding as a first system and a second excitation winding and a second output winding as a second system such that a number of the teeth wound with the windings in the first system and a number of the teeth wound with the windings in the second system are equal to each other, the electric motor control device comprising:
An electric motor control device configured to control rotation of an AC electric motor having first three-phase windings and second three-phase windings and provided with a resolver in which a plurality of teeth provided to a stator are wound with a first excitation winding and a first output winding as a first system and a second excitation winding and a second output winding as a second system such that a number of the teeth wound with the windings in the first system and a number of the teeth wound with the windings in the second system are equal to each other, the electric motor control device comprising:
An electric motor control device configured to control rotation of an AC electric motor having first three-phase windings and second three-phase windings and provided with a resolver in which a plurality of teeth provided to a stator are wound with a first excitation winding and a first output winding as a first system and a second excitation winding and a second output winding as a second system such that a number of the teeth wound with the windings in the first system and a number of the teeth wound with the windings in the second system are equal to each other, the electric motor control device comprising:
Dependencies are inferred from the claim text.