Title:
POWER CONVERSION DEVICE
Document Type and Number:
Japanese Patent JP2022098727
Kind Code:
A
Abstract:
To provide a power conversion device in which an induction motor is operated with high precision even when a motor actual value is deviated from a motor control setting value during regeneration or operation with a weak field.SOLUTION: A power conversion device includes: a power converter that outputs a voltage for making an output frequency variable to an induction motor; and a control unit that outputs a voltage command to the power converter. The control unit calculates a current control output of a d-axis which is a magnetic flux axis, computes the current control output of the d-axis, and outputs a voltage command of a q-axis so as to cause the computed output to follow zero.SELECTED DRAWING: Figure 1
Inventors:
TOBARI KAZUAKI
KONUMA YUSAKU
SUGIMOTO TAKUYA
WATANABE HIROSHI
TOKASHIKI MUTSUO
KONUMA YUSAKU
SUGIMOTO TAKUYA
WATANABE HIROSHI
TOKASHIKI MUTSUO
Application Number:
JP2020212295A
Publication Date:
July 04, 2022
Filing Date:
December 22, 2020
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
H02P21/26; H02P25/028
Attorney, Agent or Firm:
Aoritsu patent business corporation