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公开(公告)号：US12126214B2
公开(公告)日：2024-10-22
申请号：US17931536
申请日：2022-09-12
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chuntao Zhang
IPC: H02J9/06
CPC classification number: H02J9/062 , H02J2207/20
Abstract: This application provides an uninterruptible power system and a driving method for an uninterruptible power system, and relates to the field of power conversion technologies, to resolve output interruption of the uninterruptible power system. The uninterruptible power system includes a first power input end, a second power input end, a load end, and a bypass, where the bypass includes a first bidirectional switch, and the first bidirectional switch is connected to the first power input end and the load end, and is configured to control connection or disconnection between the first power input end and the load end; and at least one main circuit, where each main circuit includes a bus and an inverter output unit. An input end of the bus is connected to the second power input end, and an output end of the bus is connected to the inverter output unit.
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公开(公告)号：US20240223004A1
公开(公告)日：2024-07-04
申请号：US18400056
申请日：2023-12-29
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong Huang , Chuntao Zhang
IPC: H02J9/06
Abstract: An uninterruptible power supply includes a first power input, a second power input, a load end, a bypass, a main circuit, and a controller. The bypass includes a bidirectional switch, and the main circuit includes a rectifier circuit and an inverter circuit. The controller is configured to control a voltage that is output by the inverter circuit to be greater than a voltage that is input to the bypass, so that when currents are input to the bypass and the inverter circuit separately, a current that is output by the inverter circuit is transmitted to the load end. In response to a fault at the load end, the voltage that is output by the inverter circuit suddenly drops below the voltage that is input to the bypass, and a current that is output by the bypass is transmitted to the load end.
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3.发明公开公开(公告)号：US20230187966A1
公开(公告)日：2023-06-15
申请号：US18158910
申请日：2023-01-24
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhou Shu , Chuntao Zhang
CPC classification number: H02J9/061 , H02J7/0013 , H02J7/0063 , H02J7/0048 , H02J7/00032 , H02J7/00712 , H02J9/062
Abstract: This application discloses a non-current equalization UPS apparatus, a current distribution method, and a parallel UPS system. The current distribution method may be applied to any UPS apparatus in a parallel UPS system. A current proportion of a first current output by the any UPS apparatus in a total output current of the parallel UPS system is positively related to a capacity proportion of an available battery capacity of a battery string correspondingly connected to the any UPS apparatus in a total available battery capacity of the parallel UPS system. Therefore, a system backup time of the parallel UPS system can be prolonged, and resource utilization of a battery string with a large available battery capacity can be improved.
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公开(公告)号：US20250007290A1
公开(公告)日：2025-01-02
申请号：US18758575
申请日：2024-06-28
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Liang Wang , Chuntao Zhang
Abstract: A power supply system includes a bypass branch, at least two energy storage branches, and a controller. An input of the bypass branch is configured to connect to a power supply, and an output of the bypass branch is configured to supply power to a load. An output of each energy storage branch is configured to connect the load to the output of the bypass branch. Each energy storage branch includes an energy storage unit and a bidirectional inverter unit, and the bidirectional inverter unit is configured to, when the energy storage branch operates in a charging mode, convert an alternating current provided by the bypass branch into a direct current and output the direct current to the energy storage unit. The bidirectional inverter unit is also configured to, when the energy storage branch operates in a discharging mode, convert a direct current provided by the energy storage unit into an alternating current.
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公开(公告)号：US20230179013A1
公开(公告)日：2023-06-08
申请号：US18161336
申请日：2023-01-30
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chuntao Zhang
CPC classification number: H02J9/062 , H02M5/4585
Abstract: This application provides an uninterruptible power supply. An input end of the uninterruptible power supply is connected to a power supply by using a first on-off control module. A controller of the uninterruptible power supply is configured to: after receiving a first control signal sent by the first on-off control module, control a current in a circuit connecting the uninterruptible power supply and the first on-off control module to be zero. An output end of the uninterruptible power supply is connected to a load by using a second on-off control module. A controller of the uninterruptible power supply is configured to: after receiving a second control signal sent by the second on-off control module, control the uninterruptible power supply to be turned off.
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Patent Agency Ranking
公开(公告)号：US20230006466A1
公开(公告)日：2023-01-05
申请号：US17931536
申请日：2022-09-12
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chuntao Zhang
IPC: H02J9/06
Abstract: This application provides an uninterruptible power system and a driving method for an uninterruptible power system, and relates to the field of power conversion technologies, to resolve output interruption of the uninterruptible power system. The uninterruptible power system includes a first power input end, a second power input end, a load end, and a bypass, where the bypass includes a first bidirectional switch, and the first bidirectional switch is connected to the first power input end and the load end, and is configured to control connection or disconnection between the first power input end and the load end; and at least one main circuit, where each main circuit includes a bus and an inverter output unit. An input end of the bus is connected to the second power input end, and an output end of the bus is connected to the inverter output unit.
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公开(公告)号：US12224620B2
公开(公告)日：2025-02-11
申请号：US17570662
申请日：2022-01-07
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Inventor： Chuntao Zhang
Abstract: Embodiments of this application provide a power supply circuit, including a first power conversion module, a plurality of battery banks, a first bus, and a second bus. A first wiring terminal of the first power conversion module is connected to the battery bank, a second wiring terminal of the first power conversion module is connected to the first bus and the second bus, and the first power conversion module is configured to: perform direct current to direct current (DC/DC) conversion on a current output by a corresponding battery bank, and output currents to the first bus and the second bus. In this application, a quantity of battery banks are set to be less than a quantity of inverters in a UPS system, so that costs are reduced.
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公开(公告)号：US12126212B2
公开(公告)日：2024-10-22
申请号：US17562638
申请日：2021-12-27
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Inventor： Chuntao Zhang
Abstract: A working method of a modular uninterruptible power supply (UPS) includes: obtaining working parameters of the modular UPS, where the working parameters include an input voltage parameter, a load parameter, and a battery parameter; and adjusting a working mode of a power module in the modular UPS according to at least one of the working parameters of the modular UPS, so that not all power modules are in a same working mode, where the modular UPS includes K working modules, and 2≤K.
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公开(公告)号：US12255492B2
公开(公告)日：2025-03-18
申请号：US17902600
申请日：2022-09-02
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chuntao Zhang
Abstract: This application provides a power supply system. The power supply system includes first switch module, an UPS, and a plurality of power consumption branches. An input end of the first switch module is connected to a plurality of power supply apparatuses. An output end of the first switch module is connected to an input end of the UPS. The first switch module is switched between the plurality of power supply apparatuses to supply power to the UPS. An output end of the UPS is connected to each power consumption branch. The UPS is configured to receive electric energy and input a first voltage to each power consumption branch. Each power consumption branch includes a first transformer module and at least one power consumption load. The first transformer module is configured to convert the first voltage into a second voltage, and then provide the second voltage to the power consumption load.
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公开(公告)号：US12184117B2
公开(公告)日：2024-12-31
申请号：US18161336
申请日：2023-01-30
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chuntao Zhang
Abstract: This application provides an uninterruptible power supply. An input end of the uninterruptible power supply is connected to a power supply by using a first on-off control module. A controller of the uninterruptible power supply is configured to: after receiving a first control signal sent by the first on-off control module, control a current in a circuit connecting the uninterruptible power supply and the first on-off control module to be zero. An output end of the uninterruptible power supply is connected to a load by using a second on-off control module. A controller of the uninterruptible power supply is configured to: after receiving a second control signal sent by the second on-off control module, control the uninterruptible power supply to be turned off.
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