Title:
DUAL POWER SWITCHING SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/037152
Kind Code:
A1
Abstract:
The present invention provides a dual power switching system and a control method therefor. The dual power switching system comprises a first static transfer switch, a second static transfer switch, an inductive device, and a controller. The first static transfer switch is electrically coupled to a main power supply, and the second static transfer switch is electrically coupled to a standby power supply. When the controller detects that the main power supply is abnormal, the controller calculates a magnetic flux difference between a predicted magnetic flux and the current residual magnetic flux of the inductive device, and when the controller determines that the magnetic flux difference is less than or equal to a magnetic flux deviation value, the controller then determines whether the output power satisfies a forced commutation condition. When the controller determines that the forced commutation condition is satisfied, the controller turns on the second static transfer switch and forcibly turns off the first static transfer switch.
Inventors:
LIAO JEN-CHUAN (CN)
CHAN CHIEN-CHIH (CN)
SIE JIA-CHENG (CN)
CHAN CHIEN-CHIH (CN)
SIE JIA-CHENG (CN)
Application Number:
PCT/CN2023/099543
Publication Date:
February 22, 2024
Filing Date:
June 09, 2023
Export Citation:
Assignee:
DELTA ELECTRONICS INC (CN)
International Classes:
H02J9/06
Foreign References:
| US5808378A | 1998-09-15 | |||
| CN109787347A | 2019-05-21 | |||
| CN102820699A | 2012-12-12 | |||
| CN112803462A | 2021-05-14 | |||
| CN103812308A | 2014-05-21 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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