Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/066994
Kind Code:
A1
Abstract:
This motor control device 10 comprises: a current acquisition unit 12 that acquires a limited current ILdc that can flow from a battery 200 to a brushless motor 100; a voltage acquisition unit 11 that acquires a power supply voltage Vdc applied from the battery 200 to the brushless motor 100; and a command current determination unit 13 that determines a d-axis command current Id* and a q-axis command current Iq*. The command current determination unit 13 determines the d-axis command current Id* and the q-axis command current Iq* on the basis of a power limiting circle that is current characteristics of the d-axis and the q-axis based on an inner product of a voltage vector and a current vector, and a voltage limiting circle that is the d-axis and the q-axis current characteristics based on the scalar product of the power supply voltage Vdc and an angular velocity of the brushless motor 100.
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Inventors:
TAKAHASHI ATSUSHI (JP)
Application Number:
PCT/JP2019/037232
Publication Date:
April 02, 2020
Filing Date:
September 24, 2019
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
H02P21/26; H02P25/026
Domestic Patent References:
| WO2013108356A1 | 2013-07-25 | |||
| WO2018043536A1 | 2018-03-08 |
Foreign References:
| JP2009046005A | 2009-03-05 | |||
| US20170233926A1 | 2017-08-17 |
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