Title:
POWER CONVERSION DEVICE AND AUTO-TUNING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2017070118
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power conversion device which implements auto-tuning of mutual inductance M taking magnetic saturation into account and automatic setting relating to a command value of an excitation current and stably realizes a high torque even in an extremely low-speed range during vector control operation.SOLUTION: An auto-tuning method of a power conversion device for driving a dielectric motor includes the steps of: during an aut-tuning mode, changing a voltage command value over several stages by changing a ratio of an output voltage/output frequency of a dielectric motor 1 by a V/F control part 5 that outputs the voltage command value of the dielectric motor 1; detecting an excitation current that changes over several stages, by a current detector 3; and calculating reactive power based on the voltage command value, a current detection value and a speed command value and estimating mutual inductance of the dielectric motor that changes over several stages, from the reactive power by a mutual inductance calculation part 7.SELECTED DRAWING: Figure 1
Inventors:
TOBARI KAZUAKI
IBORI SATOSHI
TOMITA HIROYUKI
NAKAMURA ATSUHIKO
KONUMA YUSAKU
SUGIMOTO TAKUYA
IWAJI YOSHITAKA
KAMIYA AKINORI
IBORI SATOSHI
TOMITA HIROYUKI
NAKAMURA ATSUHIKO
KONUMA YUSAKU
SUGIMOTO TAKUYA
IWAJI YOSHITAKA
KAMIYA AKINORI
Application Number:
JP2015194622A
Publication Date:
April 06, 2017
Filing Date:
September 30, 2015
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
H02P21/00; H02P27/04
Domestic Patent References:
| JP2013138604A | 2013-07-11 | |||
| JP2013138548A | 2013-07-11 | |||
| JPH11151000A | 1999-06-02 | |||
| JP2004173496A | 2004-06-17 |
Foreign References:
| US20120098477A1 | 2012-04-26 | |||
| CN102393507A | 2012-03-28 |
Attorney, Agent or Firm:
Aoritsu patent business corporation