PERMANENT MAGNET SYNCHRONIZATION MOTOR VECTOR CONTROL DEVICE

WIPO Patent Application WO/2008/038338

A1

Provided is a vector control device for a permanent magnet synchronization motor driven by an inverter. The vector control device includes: a current instruction generation unit (10) for generating a d-axis current instruction id* and q-axis current instruction iq* from a given torque instruction T*; and a current control unit (20) operating so that the motor current coincides with the current instruction. The current instruction generation unit includes: a d-axis basic current instruction generation unit (11) for generating a first d-axis basic current instruction id1* by using the torque instruction; a limiter unit (12) for inputting the current instruction id1* and outputting a value limited to below zero as a second d-axis basic current instruction id2*; a d-axis current instruction correction unit (14) for outputting the current instruction id2* corrected in accordance with the d-axis current instruction correction value dV as a d-axis current instruction id*; and a q-axis current instruction generation unit (15) for generating a q-axis current instruction iq* from the d-axis current instruction id*. It is possible to generate the d-axis current instruction id* and the q-axis current instruction iq* capable of realizing the maximum torque control by using a simple operation expression.

KITANAKA, Hidetoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 1008310, JP)

JP2006/319034

April 03, 2008

September 26, 2006

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Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 1008310, JP)

H02P21/00; H02P27/04

OIWA, Masuo et al. (14-1, Minamitsukaguchi-cho 2-chomeAmagasaki-sh, Hyogo 12, 6610012, JP)

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