公开(公告)号：US20240195207A1

公开(公告)日：2024-06-13

申请号：US18587553

申请日：2024-02-26

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Qing BIAN ,  Wenbin CHEN

IPC: H02J7/35 ,  H02J3/32 ,  H02J3/38 ,  H02J7/00

CPC classification number: H02J7/35 ,  H02J3/32 ,  H02J3/381 ,  H02J7/0024 ,  H02J2207/20 ,  H02J2300/24

Abstract: Examples of a flipped conversion circuit and a photovoltaic power generation system are described. In one example, a flipped conversion circuit includes a plurality of connection ends, a half-bridge switch unit, an output capacitor unit, a resonant unit, a series diode unit, an energy storage switch unit, an input unit, an output unit, and a controller. The energy storage switch unit includes at least one switch device and a first diode, and the at least one switch device is connected to the first diode in series. The controller is configured to convert, by controlling the switch device in the half-bridge switch unit and the switch device in the energy storage switch unit to be turned on or turned off, a first voltage that is input by the input unit into a second voltage, so that the output unit outputs the second voltage.

公开(公告)号：US20240113556A1

公开(公告)日：2024-04-04

申请号：US18527619

申请日：2023-12-04

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Wenbin CHEN ,  Qing BIAN

IPC: H02J13/00 ,  H02J5/00

CPC classification number: H02J13/00002 ,  H02J5/00 ,  H02J13/00007

Abstract: A power system includes N power modules and at least two adjustment units that are one-to-one coupled to the N power modules. Each adjustment unit is connected to a controller, and each power module is configured to perform power conversion. The adjustment unit is configured to: obtain a current working status of the corresponding power module, generate a status signal and a phase frequency signal, and send the status signal and the phase frequency signal to the controller. The controller generates an output power signal based on the status signal and the phase frequency signal. The adjustment unit is further configured to: obtain the output power signal, and adjust an output power of the corresponding power module based on the output power signal, where N is a positive integer greater than or equal to 2.