Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/061452
Kind Code:
A1
Abstract:
A motor control device that feedback controls the state quantity of a motor or mechanical load and comprises: a first notch filter arranged inside a feedback control system and capable of changing a frequency component to be removed; a first notch control unit that changes a first notch frequency being a center frequency of the first notch filter; a change rate calculation unit that sequentially calculates a notch frequency change rate indicating the amount of change in the first notch frequency per unit time; and a change rate monitoring unit that outputs a signal indicating that the notch frequency change rate has reached a value outside a first prescribed range, if the notch frequency change rate has reached a value outside the first prescribed range.
Inventors:
FUJIWARA HIROSHI
TAZAWA TORU
SAEGUSA FUMITAKE
TAZAWA TORU
SAEGUSA FUMITAKE
Application Number:
PCT/JP2017/027421
Publication Date:
April 05, 2018
Filing Date:
July 28, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02P29/00
Foreign References:
JP2013089089A | 2013-05-13 | |||
JP2012023834A | 2012-02-02 | |||
JP2009296746A | 2009-12-17 | |||
JP2015216709A | 2015-12-03 | |||
US6867642B1 | 2005-03-15 |
Other References:
See also references of EP 3522367A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
Download PDF: