US 12,136,889 B2
Power system, data center, and charging device
Zhou Shu, Dongguan (CN); Xiaofei Zhang, Shenzhen (CN); and Peng Shuai, Shenzhen (CN)
Assigned to Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 15, 2023, as Appl. No. 18/184,091.
Application 18/184,091 is a continuation of application No. PCT/CN2020/115824, filed on Sep. 17, 2020.
Prior Publication US 2023/0216305 A1, Jul. 6, 2023
Int. Cl. H02M 7/23 (2006.01); B60L 53/12 (2019.01); H02J 1/00 (2006.01); H02J 1/10 (2006.01); H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02J 50/10 (2016.01); H02M 3/00 (2006.01); H02M 3/158 (2006.01)
CPC H02M 7/23 (2013.01) [B60L 53/12 (2019.02); H02J 1/001 (2020.01); H02J 1/102 (2013.01); H02J 7/00032 (2020.01); H02J 7/02 (2013.01); H02J 50/10 (2016.02); H02M 3/01 (2021.05); H02M 3/1584 (2013.01); H02J 2207/20 (2020.01); H02J 2310/48 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A power system, configured to externally connect to a three-phase alternating current power supply, the power system comprising:
a centralized controller; and
three power modules, each phase of the alternating current power supply is connected to one power module, and an input end of each power module is connected to one phase of the alternating current power supply;
each power module comprises a low voltage controller and at least two power units, and each power unit comprises a unit controller and a power conversion circuit;
the centralized controller is connected to each low voltage controller by using a bus; and
the centralized controller is configured to sends a control signal to each unit controller by using each low voltage controller, to control the unit controller and/or the power conversion circuit.