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Patent Searching and Data


Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/208701
Kind Code:
A1
Abstract:
In order to obtain a motor control device which allows a filter to be easily adjusted to maximize a speed control band thereof, the device comprises: an oscillation instruction unit (103) which outputs an oscillation instruction signal; a filter unit (107) which performs filtering processing involving frequency characteristics defined by filter parameters; a forced oscillation unit (105) which, during an oscillation period in which the oscillation instruction signal is on, constructs a control loop for the oscillation period in conjunction with the filter unit (107), a current control unit (108), a motor (1), and a speed calculation unit (101), and which oscillates the control loop for the oscillation period; an amplitude evaluation unit (109) which, when the control loop for the oscillation period is oscillated, acquires, as an evaluation value, the ratio between the amplitude of an input signal to the forced oscillation unit (105) and the amplitude of an output signal therefrom; and a filter adjustment unit (110) which, by comparing multiple evaluation values obtained by setting multiple candidates for the filter parameters one by one in the filter unit (107), selects a filter parameter resulting in a smaller evaluation value, and which sets the selected filter parameter in the filter unit (107).

Inventors:
KIMURA, Masaya (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
IKEDA, Hidetoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SHINOHARA, Nobuhiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/016753
Publication Date:
December 07, 2017
Filing Date:
April 27, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P23/04; G05B11/36; H02P29/00
Foreign References:
JP2009104439A2009-05-14
JP2006288124A2006-10-19
JP2008312339A2008-12-25
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
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