Title:
POWER CONVERSION DEVICE, CONTROL METHOD, AND POWER SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/196007
Kind Code:
A1
Abstract:
This power conversion device comprises: an inverter circuit that converts DC power supplied to a DC terminal to AC power and supplies the AC power to an AC machine, and that converts regenerative power produced by the AC machine to DC power and supplying the DC power to the DC terminal; a dynamic brake circuit that brakes the AC machine by short circuiting, by a first resistance, the AC terminal connected to the AC machine of the inverter circuit; a regenerative brake circuit that brakes the AC machine by short circuiting, by a second resistance, the DC terminal of the inverter circuit; and a control unit. When braking is applied to the AC machine by the dynamic brake circuit, braking is further applied to the AC machine by the regenerative brake circuit if a predetermined first condition is satisfied.
Inventors:
DAI XINHUI (JP)
Application Number:
PCT/JP2021/047110
Publication Date:
September 22, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H02P3/22; H02P23/20; H02P27/06
Foreign References:
| JP2021016224A | 2021-02-12 | |||
| JP2009164422A | 2009-07-23 | |||
| JP2012196143A | 2012-10-11 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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