Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/046286
Kind Code:
A1
Abstract:
The present invention addresses the problem of periodic disturbances occurring in current, etc., due to offset error and gain error of a current sensor which is used in a control device. In the present invention, a voltage command value is generated by a current control unit from a current command value and a current detection value given by a current sensor. The generated voltage command value is inputted into a plant model unit and a virtual current value is computed. The virtual current value is inputted into a periodic disturbance observer via a coordinate transform unit and a correction value is computed. The correction value is superpositioned upon the detected current value via a coordinate inverse transform unit, correcting the detected current value from the current sensor.
Inventors:
YAMAGUCHI TAKASHI (JP)
TADANO YUGO (JP)
TADANO YUGO (JP)
Application Number:
PCT/JP2014/075351
Publication Date:
April 02, 2015
Filing Date:
September 25, 2014
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
G05B13/02; H02P21/00; H02P21/05; H02P21/13; H02P21/22; H02P23/04; H02P23/07; H02P23/12; H02P27/04
Foreign References:
| JP3813637B2 | 2006-08-23 | |||
| JP2013183558A | 2013-09-12 | |||
| JP2002252991A | 2002-09-06 | |||
| JPH04299085A | 1992-10-22 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
Hiromichi Kobayashi (JP)
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