Title:
POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2021/199312
Kind Code:
A1
Abstract:
In this power converter: a first three-phase AC voltage generated by an inverter (1) and an AC filter (2) is divided by first to third voltage dividers (21 to 23) to generate a second three-phase AC voltage; and a third three-phase AC voltage, which is the line voltage of the second three-phase AC voltage, and a neutral voltage (VN) of the first three-phase AC voltage are detected. A DC component originating from errors (E1 to E3) in the voltage division ratio of the first to third voltage dividers of the third three-phase AC voltage is derived on the basis of the detection results and the content stored in a storage unit (15). The resultant DC component is removed from the third three-phase AC voltage to generate a fourth three-phase AC voltage, and an inverter is controlled so that the DC component of the fourth three-phase AC voltage is eliminated.
Inventors:
HAYASHI YOUSUKE (JP)
Application Number:
PCT/JP2020/014887
Publication Date:
October 07, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELECTRIC INDUSTRIAL SYSTEMS CORP (JP)
International Classes:
H02M7/48
Foreign References:
| JP2019154181A | 2019-09-12 | |||
| JP2018207785A | 2018-12-27 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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