Invention Grant
- Patent Title: Position control device
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Application No.: US16441542Application Date: 2019-06-14
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Publication No.: US10784803B2Publication Date: 2020-09-22
- Inventor: Satoshi Eguchi
- Applicant: OKUMA Corporation
- Applicant Address: JP Niwa-Gun, Aichi
- Assignee: OKUMA CORPORATION
- Current Assignee: OKUMA CORPORATION
- Current Assignee Address: JP Niwa-Gun, Aichi
- Agency: Cantor Colburn LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@72b67f6a
- Main IPC: H02P21/00
- IPC: H02P21/00 ; H02P21/12 ; H02P21/22 ; H02P21/09 ; H02P27/12 ; G05B19/19

Abstract:
A position control device includes a subtracter for subtracting a q-axis current detection value iq from a q-axis current command value iq* to output a q-axis current error Δiq, an adder for adding a q-axis current compensation amount iqc* for compensating for response timing of q-axis current to the q-axis current error Δiq, a q-axis current controller for amplifying an output of the adder by I-P control to calculate a q-axis voltage error Δvq and calculating a q-axis voltage command value vq* on the basis of the q-axis voltage error Δvq, and a second adder for adding a q-axis voltage feedforward amount vqf corresponding to a time derivative value s·iq of the q-axis current to the q-axis voltage command value vq* to calculate a final q-axis voltage command value.
Public/Granted literature
- US20190393817A1 POSITION CONTROL DEVICE Public/Granted day:2019-12-26
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