MOTOR CONTROL DEVICE AND METHOD

Japanese Patent JP2005354779

A

To efficiently drive a motor by minimizing the total loss of the motor.

This motor control device drives the motor 2 by generating a d-axis current and a q-axis current that correspond to torque commands T*, and comprises a rotational speed detection means 1 that detects the number of revolutions of the motor 2, on the basis of all the loss of the motor 2 classified as below a conversion table 8a that regulates in advance the torque commands T*, the d-axis current id and the q-axis current iq for minimizing the total loss with respect to the number N of revolutions of the motor. There is established an expression: the total loss=iron loss (fundamental wave iron loss (I, θ, N)+harmonic iron loss (I, θ, N)+carrier iron loss (I, θ, N))+copper loss (I)+mechanical loss (N). Here, I is a motor current, θ is a current phase, and N is the number of revolutions of the motor.

JPH03117394	RELUCTANCE TYPE MOTOR JUXTAPOSED WITH A PLURALITY OF ARMATURES
JP2001178184	INVERTER DEICE AND ELECTRIC WASHING MACHINE INCORPORATING THE SAME

NAKAMURA MITSUGI
SAKURAI TAKAO
TOYAMA KOJI
HIROE TAKAHARU
FUJIWARA KENJI
KATO YOSHIKI

JP2004171079A

December 22, 2005

June 09, 2004

Click for automatic bibliography generation  

MITSUBISHI HEAVY IND LTD

H02P6/08; H02P6/06; H02P6/17; H02P21/00; H02P23/07; H02P27/04; H02P27/08; (IPC1-7): H02P21/00; H02P6/08

Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo

Previous Patent: INVERTER DEVICE AND INPUT FUNCTION CONFIRMATION METHOD

Next Patent: CONTROL DEVICE OF POWER CONVERTER