公开(公告)号：US20240250534A1

公开(公告)日：2024-07-25

申请号：US18625478

申请日：2024-04-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Fei XU ,  Xinyu YU ,  Kai XIN ,  Shuchao WANG

IPC: H02J3/16 ,  H02J3/46 ,  H02M7/44

CPC classification number: H02J3/16 ,  H02J3/46 ,  H02M7/44

Abstract: A power supply system and a grid connection control method. The power supply system includes a power supply, an inverter, a transformer, a power station collection module, and an inverter collection control circuit. The inverter collection control circuit is configured to obtain an amplitude value and a frequency of an output voltage of the inverter, obtain an inverter power adjustment signal based on the amplitude value and the frequency of the output voltage, and control, based on the power station power adjustment signal and the inverter power adjustment signal, the inverter to output a target output power. Additionally, an output power of the inverter may be adjusted by using the power station collection module and the inverter collection control circuit. A structure is simple, and a control method is simple. This improves control precision and adjustment efficiency, reduces control time, and reduces control costs.

公开(公告)号：US20230411961A1

公开(公告)日：2023-12-21

申请号：US18240449

申请日：2023-08-31

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Shuchao WANG ,  Yanbai SHEN ,  Yanzhong ZHANG

IPC: H02J3/00 ,  H02J3/14

CPC classification number: H02J3/003 ,  H02J3/14

Abstract: This application discloses a method for implementing a fast power response and a power plant. The method is applied to a power plant-end power control apparatus, and includes determining a whole-plant reactive power target value and/or a whole-plant active power target value of the power plant. The method also includes determining, based on the whole-plant reactive power target value and/or the whole-plant active power target value, a second power control instruction readable to each photovoltaic inverter or power conversion system in the power plant. The method further includes delivering, through a subarray controller or a subarray communication device over an Ethernet network and/or a field bus network, the second power control instruction to each photovoltaic inverter or power conversion system indicated by address identifier information carried in the second power control instruction, so that each photovoltaic inverter or power conversion system makes a fast power response based on the second power control instruction.

公开(公告)号：US20220368134A1

公开(公告)日：2022-11-17

申请号：US17743593

申请日：2022-05-13

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chang HEI ,  Zhipeng WU ,  Shuchao WANG

IPC: H02J3/32 ,  H02J3/38 ,  G06Q10/06 ,  G05B19/042

Abstract: An example energy storage system and a related method are disclosed. In the energy storage system, a controller obtains information about user equipment, and then controls a converter and a battery group based on the information about the user equipment, to supply electric energy to an electric device or receive electric energy from a power sourcing device. In this way, the energy storage system can provide reasonable power scheduling, thereby improving utilization of the energy storage system.