電動機制御装置およびこれを備えた空気調和装置

Japanese Patent JP7378594

B2

This electric motor control device includes: an electric power conversion device that supplies alternating current voltage corresponding to a voltage instruction value to an electric motor; an electric current detecting device that detects an electric current flowing at the electric motor; and a control device that outputs, to the electric power conversion device, the voltage instruction value calculated in accordance with a speed instruction value and information of the electric current detected by the electric current detecting device. The control device includes: rotations estimating means that calculate estimated rotations of the electric motor using an electric current detection value that is the electric current detected by the electric current detecting device; electric current estimating means that estimate the electric current flowing at the electric motor using the voltage instruction value, the estimated rotations, and a parameter of the electric motor; and compensation amount calculating means that calculate a compensation amount for compensating for voltage error that is an error between output voltage of the electric power conversion device and the voltage instruction value, on the basis of an electric current difference that is a value obtained by subtracting the electric current detection value from an electric current estimation value that is an electric current estimated by the electric current estimating means.

JPH09149698	CONTROLLER FOR INDUCTION MOTOR
JP5620526	Motor control device
JP4815806	AC rotating machine control device

Toshinori Asai
Kazunori Sakanobe
Akihiro Tsumura

JP2022516523A

November 13, 2023

April 21, 2020

Click for automatic bibliography generation  

Mitsubishi Electric Corporation

H02P21/24

JP2012228083A

Patent Attorney Corporation Kisa Patent and Trademark Office

Previous Patent: Battery module and battery pack containing it

Next Patent: Fibrillated fiber and its manufacturing method