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Title:
INVERTER CONTROL DEVICE AND ELECTRIC MOTOR DRIVING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/043501
Kind Code:
A1
Abstract:
This inverter control device according to one embodiment provides an electric motor driving system and an inverter control device that can achieve stable activation, the inverter control device comprising: a current detector 3 that detects a current response value outputted from an inverter 1; an activation-case control unit 4 including a rotation phase angle estimation unit 45 that calculates, on the basis of the current response value, a value θest0 corresponding to the rotation phase angle of an electric motor 2, in a stationary coordinate system, and a rotation speed estimation unit 46 that calculates, when the inverter 1 is activated, an initial rotation speed estimation value ωest0 of the electric motor 2 using an estimated rotation phase angle θest1; and a normal-case control unit 5 that calculates an estimated rotation phase angle θest of the electric motor 2 in a rotary coordinate system, using the initial rotation speed estimation value ωest0 as the initial value.

Inventors:
TANIGUCHI, Shun (1-1 Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
YASUI, Kazuya (1-1 Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
SHIGETA, Tomoaki (1-1 Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
Application Number:
JP2017/031001
Publication Date:
March 08, 2018
Filing Date:
August 29, 2017
Export Citation:
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Assignee:
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION (72-34, Horikawa-cho Saiwai-ku, Kawasaki-sh, Kanagawa 85, 〒2128585, JP)
TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION (580 Horikawa-cho, Saiwai-ku Kawasaki-sh, Kanagawa 13, 〒2120013, JP)
International Classes:
H02P6/18; H02M7/48; H02P27/06
Foreign References:
JP2009112081A2009-05-21
JP2004187396A2004-07-02
JP2003299381A2003-10-17
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (11th Floor Celestine Shiba Mitsui Bldg., 3-23-1 Shiba, Minato-k, Tokyo 14, 〒1050014, JP)
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