MOTOR CONTROL DEVICE AND MACHINERY

WIPO Patent Application WO/2023/238329

A1

This motor control device comprises: a first motor (2) and a second motor (3) mounted on a frame (1); a second controller (13) that determines a second deviation suppression signal, which is for driving the second motor (3), such that a difference between a signal based on a second position command for designating the position of a needle (3b) of the second motor (3) and a second motor position signal indicative of the relative position between the needle (3b) and a stator (3a) of the second motor (3) decreases; a frame state estimator (15) that determines, on the basis of a reference drive force signal which represents a force for driving a needle (2b) of the first motor (2), a frame model position which is an estimation value for the absolute position of the frame (1) which elastically deforms by reaction force resulting from driving of the needle (2b) of the first motor (2); a correction amount determiner (16A) that determines a displacement correction signal on the basis of the frame model position; and a calculator (17) that determines a corrected motor drive signal for driving the second motor (3) on the basis of the displacement correction signal and the second deviation suppression signal.

JPH0667265	INDUSTRIAL APPLICABILITY: Drive method of brushless motor
JP2002148886	IMAGE FORMING DEVICE, ITS CONTROL METHOD AND STORAGE MEDIUM
JP3694614	AIR CONDITIONER AND BRUSHLESS MOTOR CONTROLLER

OKUMURA SHINJI (JP)
SEKIGUCHI HIROYUKI (JP)
UENO SHO (JP)

PCT/JP2022/023297

December 14, 2023

June 09, 2022

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MITSUBISHI ELECTRIC CORP (JP)

H02P6/04; H02P5/00

WO2021176617A1	2021-09-10
WO2016125804A1	2016-08-11

JP6786024B1	2020-11-18
JP2012052666A	2012-03-15
JP2010041734A	2010-02-18

TAKAMURA, Jun (JP)

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