Controller for rotary electric machine

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12184206
APP PUB NO 20220166356A1
SERIAL NO

17598429

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Abstract

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To provide a controller for rotary electric machine which can suppress the increase in the switching frequency by the voltage for estimation while reducing the estimation delay of the magnetic pole position (the rotational angle). A controller for rotary electric machine turns on and off switching devices which the inverter has and applies voltage to the winding, based on a comparison result between the voltage command and the carrier wave; generates the voltage command for estimation of a preliminarily set one period on a stationary coordinate system fixed to the winding; generates the carrier wave of the same one period as the one period of the voltage command for estimation; extracts the frequency component of the one period of the voltage command for estimation from the current detection value; and estimates a rotational angle based on the frequency component.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATIONCHIYODA-KU TOKYO 100-8310

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kezobo, Isao Tokyo, JP 50 526
Kitagawa, Jun Tokyo, JP 35 285
Kubo, Kenta Tokyo, JP 72 447
Mori, Tatsuya Tokyo, JP 169 677
Sawada, Seiji Tokyo, JP 57 1310

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