CPC H02P 21/10 (2013.01) [H02P 21/18 (2016.02); H02P 21/22 (2016.02); H02P 29/027 (2013.01); H02P 2207/055 (2013.01)] | 14 Claims |
8. A motor control system adapted to be coupled to a power supply and a motor having a stator with at least two coils, the motor control system comprising:
a modulator coupled to the power supply, wherein the modulator controls application of power from the power supply to the at least two coils;
a field-oriented control having a reference iq input, a reference id input and coil current feedback inputs configured to receive current signals from at least two current sensors detecting current through the at least two coils, the field-oriented control configured to provide control signals to the modulator; and
a reference id controller having:
a reference idc input configured to receive a reference idc signal;
an idc input configured to receive a supply current measure; and
a reference id output coupled to the reference id input and configured to provide a reference id signal, wherein the reference id controller is configured to pass the reference idc signal as the reference id signal when the supply measure current indicates that power is not flowing from the motor to the power supply, and configured to provide a difference between the reference idc signal and the supply measure current as the reference id signal when the supply current measure indicates that power is flowing from the motor to the power supply.
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