Abstract
A method of controlling an apparatus including a motor, includes: determining a duty ratio of an inverter control signal to change on and off states of a plurality of switches included in an inverter of the apparatus at a time of terminating square wave control; determining a phase voltage of the motor based on the inverter control signal; and setting an initial voltage command to initiate sinusoidal wave control based on the phase voltage of the motor and a position of a rotor of the motor, wherein a phase voltage of the motor based on the initial voltage command corresponds to a phase voltage of the motor based on the duty ratio.
Full Text
What is claimed is:
A method of controlling an apparatus including a motor, includes: determining a duty ratio of an inverter control signal to change on and off states of a plurality of switches included in an inverter of the apparatus at a time of terminating square wave control; determining a phase voltage of the motor based on the inverter control signal; and setting an initial voltage command to initiate sinusoidal wave control based on the phase voltage of the motor and a position of a rotor of the motor, wherein a phase voltage of the motor based on the initial voltage command corresponds to a phase voltage of the motor based on the duty ratio.
Timeline
Filed
03/05/2026Published
07/09/2026Granted
Not AvailableIPC Codes(3)
H02P 27/12:pulsing by guiding the flux vector, current vector or voltage vector on a circle or a closed curve, e.g. for direct torque control
H02P 21/18:Estimation of position or speed
H02P 21/22:Current control, e.g. using a current control loop