Invention Grant
- Patent Title: Synchronous motor control device for controlling synchronous motor to carry out power regenerative operation and stop synchronous motor at the time of power failure
- Patent Title (中): 同步电动机控制装置，用于控制同步电动机，在停电时进行再生动作停止同步电动机
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Application No.: US13780671Application Date: 2013-02-28
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Publication No.: US08716965B2Publication Date: 2014-05-06
- Inventor: Yasusuke Iwashita , Hajime Ogawa
- Applicant: Fanuc Corporation
- Applicant Address: JP Yamanashi
- Assignee: Fanuc Corporation
- Current Assignee: Fanuc Corporation
- Current Assignee Address: JP Yamanashi
- Agency: Lowe Hauptman & Ham, LLP
- Priority: JP2012-092269 20120413
- Main IPC: H02P21/00
- IPC: H02P21/00
Abstract:
A second q-axis current command value, which is set by a q-axis current command value setting unit when an alternating-current power source fails at the time of driving of a synchronous motor, and a second d-axis current command value, which is set by a d-axis current command value setting unit when the alternating-current power source fails at the time of the driving of the synchronous motor, are set so that an absolute value of power per unit time of the synchronous motor is equal to loss per unit time of the synchronous motor.
Public/Granted literature
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