CONTROL DEVICE FOR AC ROTARY MACHINE

WIPO Patent Application WO/2014/171009

A1

This control device for an AC rotary machine is provided with the following: an AC-rotary-machine control means that uses AC-rotary-machine position information to create a voltage-command vector so as to make a detected-current vector equal to a current-command vector; a voltage application means that applies a voltage to the AC rotary machine on the basis of the aforementioned voltage-command vector; a secondary-magnetic-flux-vector calculation means that calculates a secondary-magnetic-flux vector for the AC rotary machine; and an adaptive observation means that determines and outputs an estimated rotational position and an estimated speed in accordance with the abovementioned voltage-command vector, the abovementioned detected-current vector, and the aforementioned secondary-magnetic-flux vector. Via a switchable gain, the adaptive observation means can switch between using and not using the secondary-magnetic-flux vector, and the adaptive observation means has a compensation means that compensates for fluctuations that occur in the estimated speed when said switchable gain is switched.

JPH0785676	INDUSTRIAL APPLICABILITY: Control device for induction motor
JP5693652	Synchronous machine control device

KAWAHARA KUNIHIRO (JP)
ITO MASATO (JP)
TERASHIMA SATORU (JP)

PCT/JP2013/061635

October 23, 2014

April 19, 2013

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MITSUBISHI ELECTRIC CORP (JP)

H02P27/04; H02P21/00; H02P21/13; H02P21/14; H02P21/18; H02P21/22; H02P21/24; H02P23/12; H02P23/14; H02P23/16

WO2010109528A1	2010-09-30
WO2002091558A1	2002-11-14

JP2012023862A

2012-02-02

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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