Keating & Bennett
Motor control apparatus, motor system, motor control method, and integrated circuit device
A motor control apparatus includes a first circuit that determines a d-axis 0th-order current and a q-axis 0th-order current, a second circuit that determines a d-axis 6th-order harmonic current and a q-axis 6th-order harmonic current according to a position of the rotor, and a third circuit that determines, respectively, a value obtained by superposing the d-axis 6th-order harmonic current on the d-axis 0th-order current and a value obtained by superposing the q-axis 6th-order harmonic current on the q-axis 0th-order current as a d-axis current command value and a q-axis current command value. An amplitude id6 and a phase θd6 of the d-axis 6th-order harmonic current and an amplitude iq6 and a phase θq6 of the q-axis 6th-order harmonic current have values that decrease an electrical angle 6th-order radial force as compared with a case in which both of the amplitude id6 and the amplitude iq6 are zero and decrease an electrical angle 8th-order radial force as compared with a case in which the amplitudes id6 and iq6 and the phases θd6 and θq6 are values that minimize the electrical angle 6th-order radial force.
NIDEC CORPORATION
H H H H
H02P H02P H02P H02P
inventional inventional inventional additional
Masanori Tomoya Tomonari
Watahiki Ueda Mori