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US 2015/0311846 A1Published application
Primary magnetic flux control method
AssigneeDaikin Industries, Ltd.
InventorsTakeshi ARAKI, Naoto KOBAYASHI, Nobuki KITANO
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Abstract
A primary magnetic flux command value is changed in accordance with a torque of a rotary electric motor to control a current phase of an armature current with respect to a q axis that advances by π/2 with respect to a d axis in phase with a field flux to be a desired phase in accordance with the torque.
Claims15
A primary magnetic flux control method comprising:
- setting a primary magnetic flux command value, which is a command value of a primary magnetic flux, on a rotary electric motor including an armature having an armature winding, and a rotor which is a field rotating relatively to said armature;
- and
- controlling said primary magnetic flux in accordance with said primary magnetic flux command value, said primary magnetic flux being a synthesis of a field flux that said field generates and a magnetic flux of an armature reaction generated by an armature current flowing in said armature, and
- changing said primary magnetic flux command value in accordance with a torque of said rotary electric motor to control a current phase of said armature current with respect to a q axis that advances by π/2 with respect to a d axis in phase with said field flux to be a desired phase in accordance with said torque.
1 more element
Dependencies are inferred from the claim text.