Title:
LOAD CURRENT DISTRIBUTION ADJUSTING DEVICE FOR STORAGE BATTERY POWER CONVERSION DEVICE, LOAD CURRENT DISTRIBUTION ADJUSTING METHOD, AND LOAD CURRENT DISTRIBUTION ADJUSTING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/203699
Kind Code:
A1
Abstract:
This load current distribution adjusting device for a storage battery power conversion device comprises: a cross current calculation unit for calculating the cross current of a relevant power conversion device on the basis of an average current of the output currents of a plurality of storage battery power conversion devices performing an autonomous parallel operation and the output current of the relevant power conversion device; a first correction amount calculation unit for calculating a first correction amount of a voltage command value on the basis of the cross current calculated by the cross current calculation unit and the output voltage of the relevant power conversion device; a gain calculation unit for calculating a weighted gain of the relevant power conversion device on the basis of an average voltage of the respective DC voltages of the plurality of storage battery power conversion devices and the DC voltage of the relevant power conversion device; a second correction amount calculation unit for calculating a second correction amount of the voltage command value on the basis of the first correction amount calculated by the first correction amount calculation unit and the weighted gain calculated by the gain calculation unit; and an output current control unit for controlling the output current of the relevant power conversion device on the basis of a predetermined voltage command value and the second correction amount calculated by the second correction amount calculation unit.
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Inventors:
LI HAIQING (JP)
Application Number:
PCT/JP2022/018335
Publication Date:
October 26, 2023
Filing Date:
April 20, 2022
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELECTRIC INDUSTRIAL SYSTEMS CORP (JP)
International Classes:
H02J7/00; H02J3/46; H02J7/02; H02J7/34; H02J9/06
Foreign References:
| JP2015082954A | 2015-04-27 | |||
| JP2008160960A | 2008-07-10 | |||
| JP2014036472A | 2014-02-24 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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