Title:
ELECTRIC MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/080294
Kind Code:
A1
Abstract:
This control device comprises: a target speed derivation unit that derives a target speed ωr of an electric motor, within an available output range of the electric motor, in accordance with a required value; a command value conversion unit 85 that executes a conversion process for converting a d-axis voltage command value Vdc and a q-axis voltage command value Vqc into a U-phase command voltage VU*, a V-phase command voltage VV*, and a W-phase command voltage VW*; and a rotational position correction unit 81 that corrects, on the basis of the target speed ωr, a deviation amount of a rotational position caused by a time difference between a timing at which the conversion process is executed and a timing at which an inverter operates on the basis of the command values VU*, VV*, VW* derived by the conversion process. The command value conversion unit 85 executes the conversion process using a rotational position θe(n+1) corrected by the rotational position correction unit 81.
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Inventors:
KANEKO SHOSUKE (JP)
Application Number:
PCT/JP2023/036839
Publication Date:
April 18, 2024
Filing Date:
October 11, 2023
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
H02P21/05
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