Invention Grant
- Patent Title: Motor drive apparatus including power storage device
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Application No.: US16856035Application Date: 2020-04-23
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Publication No.: US11496074B2Publication Date: 2022-11-08
- Inventor: Shougo Shinoda , Satoshi Ikai
- Applicant: FANUC CORPORATION
- Applicant Address: JP Yamanashi
- Assignee: FANUC CORPORATION
- Current Assignee: FANUC CORPORATION
- Current Assignee Address: JP Yamanashi
- Agency: Hauptman Ham, LLP
- Priority: JPJP2019-084324 20190425,JPJP2020-069213 20200407
- Main IPC: H02P3/14
- IPC: H02P3/14 ; H02P5/74 ; H02J7/34 ; H02J3/32 ; H02J3/30

Abstract:
A motor drive apparatus includes a converter; an inverter for drive; a power storage device configured to supply DC power to a direct current link or to store DC power from the direct current link; a power consumption estimation unit configured to acquire a power consumption estimation value which is an estimation value of a total power consumption at a time point later, by a predetermined time, than a value at a present time point, the total power consumption being obtained as a sum of an output of the servomotor for drive, a winding loss in the servomotor for drive, a loss in the converter and a loss in the inverter for drive; and a power storage device control unit configured to control power supply and power storage of the power storage device in accordance with the power consumption estimation value.
Public/Granted literature
- US20200343836A1 MOTOR DRIVE APPARATUS INCLUDING POWER STORAGE DEVICE Public/Granted day:2020-10-29
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