Title:
POWER CONVERSION DEVICE AND POWER CONVERSION METHOD
Document Type and Number:
Japanese Patent JP2022041115
Kind Code:
A
Abstract:
To provide a power conversion device effective for achieving both a degree of freedom of control by a matrix converter circuit and suppression of heat generation of a switching element in the matrix converter circuit.SOLUTION: A power conversion device 1 comprises a matrix converter circuit 10 that performs bidirectional power conversion between primary side power and secondary side power, a first mode control unit 114 that causes a secondary side frequency of the matrix converter circuit 10 to follow a command frequency, a second mode control unit 115 that maintains a difference between a secondary side phase and a primary side phase of the matrix converter circuit 10 at an odd multiple of 60°±30°, and a mode switching unit 116 that switches the control modes of the matrix converter circuit 10 based on a difference between the command frequency and the primary side frequency of the matrix converter circuit 10 and a predetermined threshold value.SELECTED DRAWING: Figure 1
Inventors:
KARAKAMA HIROTAKA
UCHINO TAKAHIRO
INOKI TAKAO
TANAKA MASAKI
UCHINO TAKAHIRO
INOKI TAKAO
TANAKA MASAKI
Application Number:
JP2020146154A
Publication Date:
March 11, 2022
Filing Date:
August 31, 2020
Export Citation:
Assignee:
YASKAWA ELECTRIC CORP
International Classes:
H02M5/293
Domestic Patent References:
| JP2015146688A | 2015-08-13 | |||
| JP2015082949A | 2015-04-27 | |||
| JP2004336848A | 2004-11-25 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yasunori Ishizaka
Shigeki Matsuo
Yasunori Ishizaka
Shigeki Matsuo
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