Title:
POWER CONVESION DEVICE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/074716
Kind Code:
A1
Abstract:
Provided is a power conversion device control device capable of preventing inrush current from flowing through a power converter with a simple configuration. In this power conversion device, a power converter connected to a DC power supply, a filter, and a switch connected to an AC power supply are connected in series in this order. The power conversion device comprises: a calculation unit for calculating, from the value of AC current flowing between the power converter and the filter and the impedance of the filter, an estimated value of AC power output by the power converter; and a control unit for controlling the operation of the power converter so that the difference between a power target value and the estimated value falls in a preset allowable range, said power target value being calculated on the basis of the value of AC current flowing between the filter and the switch and the value of AC voltage flowing between the switch and the AC power supply in a state in which the switch is open, and for closing the switch when the difference between the estimated value and the target value falls in the preset allowable range.
Inventors:
TSURUMA YOSHINORI (JP)
YAMABE KENTA (JP)
YAMABE KENTA (JP)
Application Number:
PCT/JP2020/037759
Publication Date:
April 14, 2022
Filing Date:
October 05, 2020
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02M7/48
Foreign References:
| JP2010226871A | 2010-10-07 | |||
| JPH09261969A | 1997-10-03 | |||
| JP2020068552A | 2020-04-30 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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