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US 2022/0190768 A1Published application
Apparatus for controlling motor and method for controlling motor
AssigneeLG Electronics Inc.
InventorsHa Min Song, Ki Wook Lee, Kwang Sik Kim
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Abstract
Disclosed is a motor control apparatus and a motor control method to estimate a stator resistance of a motor for sensorless control of the motor.
Claims20
A motor control apparatus comprising:
- an inverter configured to convert direct current (DC) power into alternating current (AC) power, and to output the AC power to a motor;
- and
- a controller configured to control the inverter in relation to driving the motor,
- wherein the controller is configured to:
- control the inverter to apply a first input voltage for estimating resistance of a stator of the motor before applying a second input voltage for estimating a position of a rotor of the motor, in response to a start-up of the driving of the motor, and
- control the driving of the motor based on the estimated resistance of the stator according to a result of applying the first input voltage.
3 more elements
A method of controlling an inverter for driving a motor, the method comprising:
- controlling the inverter to apply a first input voltage for estimating resistance of a stator of the motor before applying a second input voltage for estimating a position of a rotor of the motor, in response to a start-up of driving of the motor;
- and
- controlling the driving of the motor based on the estimated resistance of the stator according to a result of applying the first input voltage.
Dependencies are inferred from the claim text.