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Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/070295
Kind Code:
A1
Abstract:
This power conversion device comprises a power conversion circuit, and a power conversion control circuit. This power conversion control circuit: calculates a positive phase current command signal based on a positive phase voltage of a three-phase AC output voltage and a positive phase current of a three-phase AC output current; by doing dq conversion of each of the measured value of the three-phase AC output voltage and the measured value of the three-phase AC output current, calculates a first axis reverse phase voltage value which is a d axis component of a reverse phase voltage, a second axis reverse phase voltage value which is a q axis component of the reverse phase voltage, a first axis reverse phase current value which is the d axis component of a reverse phase current, and a second axis reverse phase current value which is the q axis component of the reverse phase current; calculates a first axis reverse phase current command value which is a d axis component command in the reverse phase current based on the second axis reverse phase voltage value, and also calculates a second axis reverse phase current command value which is a q axis component command in the reverse phase current based on the first axis reverse phase voltage value; calculates a reverse phase current command signal based on the first axis reverse phase current command value, the second axis reverse phase current command value, the first axis reverse phase current value, and the second axis reverse phase current value; and generates a switching control signal based on the positive phase current command signal and the reverse phase current command signal.

Inventors:
BANI SHAMSEH MOHAMMAD (JP)
FUKASAWA ISSEI (JP)
Application Number:
PCT/JP2019/039874
Publication Date:
April 15, 2021
Filing Date:
October 09, 2019
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02M7/48
Foreign References:
JPH07200084A1995-08-04
JP2007259567A2007-10-04
JP2011188665A2011-09-22
JP2011217464A2011-10-27
US20190245458A12019-08-08
Other References:
See also references of EP 3836331A4
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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