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公开(公告)号：US20220413018A1
公开(公告)日：2022-12-29
申请号：US17850459
申请日：2022-06-27
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong HUANG , Xiaofei ZHANG , Peng SHUAI
Abstract: This application provides a voltage sampler and a solid-state transformer. The voltage sampler includes a conductive housing, at least one sampling board located inside the housing, and a conducting layer. Each sampling board includes at least two resistors and a voltage input end. The resistors in the sampling board are electrically connected in sequence in the direction from a first end to a second end. The resistor at the first end is electrically connected to the voltage input end. The resistor at the second end is electrically connected to the housing, and the housing is electrically connected to a fixed potential end. The conducting layer is disposed between the at least one sampling board and the housing in the voltage sampler. The conducting layer is electrically connected to a resistor in the sampling board.
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Patent Agency Ranking
公开(公告)号：US20220392692A1
公开(公告)日：2022-12-08
申请号：US17830908
申请日：2022-06-02
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong HUANG , Xiaofei ZHANG , Xiaoqing HU , Zelong ZHANG , Peng SHUAI
Abstract: This application provides a dry-type transformer and a winding method thereof. The dry-type transformer includes a magnetic core, a first coil, a second coil, and a shielding component. The first coil is disposed around the exterior of the magnetic core, and the second coil is disposed around the exterior of the first coil. In a direction from the iron core to the second coil, the shielding component includes a first conducting layer, a second conducting layer, a third conducting layer, and a fourth conducting layer that are sequentially disposed at intervals, the first coil is disposed between the magnetic core and the first conducting layer, and the second coil is disposed between the second conducting layer and the third conducting layer.
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3.发明申请公开(公告)号：US20220181964A1
公开(公告)日：2022-06-09
申请号：US17544690
申请日：2021-12-07
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong HUANG , Xiaofei ZHANG , Peng SHUAI , Peiguo LIU
Abstract: Embodiments of this application provide a power conversion circuit. The power conversion circuit includes at least one first power conversion unit connected in series to a first phase line, at least one second power conversion unit connected in series to a second phase line, at least one third power conversion unit connected in series to a third phase line, a plurality of first start circuits connected in series to the first phase line, and a plurality of second start circuits connected in series to the second phase line. Each first start circuit includes a first relay and a first resistor that are connected in parallel, and first relays in all the first start circuits are sequentially closed after the power conversion circuit is powered on, to start the power conversion circuit. Each second start circuit includes a second relay and a second resistor that are connected in parallel.
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公开(公告)号：US20220416671A1
公开(公告)日：2022-12-29
申请号：US17899611
申请日：2022-08-31
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong Huang , Xiaofei ZHANG , Peng SHUAI
Abstract: This application discloses a power electronic transformer wherein each phase includes a plurality of power conversion modules. Each power conversion module includes a rectifier AC/DC circuit, a direct current bus capacitor, and a direct current-direct current DC/DC circuit. In each power conversion module, an output end of the AC/DC circuit is connected to an input end of the DC/DC circuit; the direct current bus capacitor is connected in parallel to the output end of the AC/DC circuit; and input ends of all the AC/DC circuits are connected in series, and output ends of all the DC/DC circuits are connected in parallel. The power electronic transformer includes a relatively small quantity of power conversion modules, thereby reducing occupied space and costs.
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公开(公告)号：US20230396145A1
公开(公告)日：2023-12-07
申请号：US18451914
申请日：2023-08-18
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Peng SHUAI , Zhuyong HUANG , Xiaofei ZHANG
CPC classification number: H02M1/0074 , H02M5/12
Abstract: A solid-state transformer, a power supply device, and a data center, related to the field of power technologies, to resolve problems of low power density and high manufacturing costs of the solid-state transformer. The solid-state transformer includes a housing and M power conversion units. The M power conversion units include a first power conversion circuit, a high-frequency transformer, and a second power conversion circuit, and the first power conversion circuit is coupled to the second power conversion circuit by using the high-frequency transformer. The housing has an insulation base and a conductive enclosure, the conductive enclosure is sleeved on an outer surface of the insulation base. The insulation base has an accommodating cavity, and in the M power conversion units, at least first power conversion circuits are disposed in the accommodating cavity at intervals, where M is an integer greater than 1.
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公开(公告)号：US20230216305A1
公开(公告)日：2023-07-06
申请号：US18184091
申请日：2023-03-15
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhou SHU , Xiaofei ZHANG , Peng SHUAI
CPC classification number: H02J3/38 , B60L53/12 , B60L53/62 , H02J50/10 , H02M3/01 , H02M7/219 , H02J2207/20
Abstract: The original Abstract is canceled in favor of the new Abstract presented on the following page.
A power system, related to the field of electronic power. The power system includes a centralized controller and three power modules. Each phase of an 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 includes a low voltage controller and at least two power units. Each power unit includes a unit controller. The centralized controller is connected to each low voltage controller by using a bus. The centralized controller sends a control signal to each unit controller by using each low voltage controller, to control the unit controller and/or a power conversion circuit. The power system can implement hot swap of the power module and improve on-site operation reliability.
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