Title:
APPARATUS AND METHOD FOR CONTROLLING INVERTER-DRIVEN SENSORLESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/043399
Kind Code:
A1
Abstract:
The present specification relates to an apparatus and method for controlling an inverter-driven sensorless motor. A method for controlling an inverter-driven sensorless motor according to one embodiment of the present specification comprises the steps of: outputting an angular speed command value on the basis of a torque error; generating current command values of d-axis and q-axis components on the basis of a speed command value and an angular speed estimation value; generating a pulse width modulation (PWM) signal for starting a rotor, the PWM signal being generated on the basis of the current command values of the d-axis and q-axis components and the d-axis and q-axis component current values flowing through a motor; and driving the motor by generating a drive signal on the basis of the PWM signal. The step of outputting an angular speed command value may comprise the steps of: estimating a torque value on the basis of an input power estimation value of the motor and the angular speed estimation value; generating a torque error on the basis of a torque command value and a torque estimation value; and adjusting the angular speed command value on the basis of the torque error.
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Inventors:
KANG JEONGGU (KR)
Application Number:
PCT/KR2022/017366
Publication Date:
February 29, 2024
Filing Date:
November 07, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02P21/24; H02P6/18; H02P27/08
Foreign References:
| KR20210000152A | 2021-01-04 | |||
| US20220181995A1 | 2022-06-09 | |||
| KR102189823B1 | 2020-12-11 | |||
| KR20110072143A | 2011-06-29 | |||
| JP2020039227A | 2020-03-12 |
Attorney, Agent or Firm:
ROYAL PATENT & LAW OFFICE (KR)
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