US 12,169,428 B2
Power supply apparatus, power supply system, and data center
Zhuyong Huang, Dongguan (CN); Xiaofei Zhang, Dongguan (CN); and Zhengdong Jiang, Dongguan (CN)
Assigned to Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on May 3, 2022, as Appl. No. 17/735,608.
Application 17/735,608 is a continuation of application No. PCT/CN2020/130165, filed on Nov. 19, 2020.
Claims priority of application No. 202010125643.4 (CN), filed on Feb. 27, 2020.
Prior Publication US 2022/0269325 A1, Aug. 25, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/26 (2006.01); H02M 3/155 (2006.01); H02M 7/217 (2006.01); H02J 1/10 (2006.01); H02J 7/02 (2016.01); H02J 9/06 (2006.01)
CPC G06F 1/26 (2013.01) [H02M 3/155 (2013.01); H02M 7/217 (2013.01); H02J 1/10 (2013.01); H02J 7/02 (2013.01); H02J 9/061 (2013.01); H02J 2310/16 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A power supply system, comprising a first power supply apparatus, a second power supply apparatus, and a bus tie switch unit, wherein
the first power supply apparatus comprises:
a first solid-state transformer, configured to convert a first alternating current into a first direct current;
a first direct current/direct current converter, coupled to the first solid-state transformer, and configured to convert the first direct current into a second direct current;
a first energy storage component, coupled to the first direct current/direct current converter, and configured to perform energy storage on the second direct current;
a first switch unit, coupled to the first direct current/direct current converter and a second direct current/direct current converter; and
the second direct current/direct current converter configured to convert the second direct current into a third direct current, wherein the third direct current supplies power to a load; and
the second power supply apparatus comprises:
a second solid-state transformer, configured to convert a second alternating current into a fourth direct current;
a third direct current/direct current converter, coupled to the second solid-state transformer, and configured to convert the fourth direct current into a fifth direct current;
a second energy storage component, coupled to the third direct current/direct current converter, and configured to perform energy storage on the fifth direct current;
a second switch unit, coupled to the third direct current/direct current converter and a fourth direct current/direct current converter; and
the fourth direct current/direct current converter configured to convert the fifth direct current into a sixth direct current, wherein the sixth direct current supplies power to the load; wherein
two terminals of the bus tie switch unit are respectively coupled to the first switch unit and the second switch unit.