Title:
直流電動機の制御装置
Document Type and Number:
Japanese Patent JP6397734
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a DC motor control device capable of performing stable sensorless control for the DC motor without making the motor a special structure and without using a special power supply.SOLUTION: A DC motor control device comprises: a power control unit 15 which controls current flowing through an armature coil on the basis of control voltage v*; a current detection unit 16 which detects a current detection value i; voltage command output units 11 and 12 which output a voltage command r corresponding to a speed command ω*; an adaptive model unit 18 which calculates an estimation value i^ of current using the adaptive model of the DC motor on the basis of the voltage command r; a speed estimation unit 19 which calculates an estimation value ω^ of a rotational speed so that the difference (i*-i) between the current detection value i detected by the current detection unit and the estimation value i^ of current calculated by the adaptive model unit asymptotically becomes 0; and a control voltage output unit 13 which calculates control voltage v* on the basis of the voltage command r and the estimation value ω^ of the rotational speed calculated by the speed estimation unit and outputs the calculated voltage to the power control unit.SELECTED DRAWING: Figure 1
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Inventors:
Masaki Ohara
Application Number:
JP2014231941A
Publication Date:
September 26, 2018
Filing Date:
November 14, 2014
Export Citation:
Assignee:
Takenaka Manufacturing Co., Ltd.
International Classes:
H02P7/06; H02P21/18
Domestic Patent References:
| JP2012023937A |
Foreign References:
| WO2014049694A1 |
Attorney, Agent or Firm:
Yukio Kubo
Yasuhiro Sakata
Yasuhiro Sakata