公开(公告)号：US20250141345A1

公开(公告)日：2025-05-01

申请号：US19009701

申请日：2025-01-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yao Chang ,  Jianrui Xue

IPC: H02M1/32 ,  B60L8/00 ,  G01K7/01 ,  H02M7/00 ,  H02M7/5387

Abstract: A power module includes a first power semiconductor chip, a first temperature sensor, a first diode chip, and a first circuit board. The first power semiconductor chip includes a first output electrode. The first temperature sensor is located inside the first power semiconductor chip, a first cathode of the first temperature sensor is electrically connected to the first output electrode. The first diode chip is electrically connected to the first power semiconductor chip, and a voltage is generated between the first output electrode and the first cathode when the first diode chip generates a reverse recovery current. The first circuit board is configured to obtain a first voltage difference between the first output electrode and the first cathode, to obtain a temperature of the first diode chip. The power module in this application can accurately and quickly detect temperatures of the first power semiconductor chip and the first diode chip.

公开(公告)号：US12021390B2

公开(公告)日：2024-06-25

申请号：US18145830

申请日：2022-12-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Min Liu ,  Shuchao Wang ,  Yao Chang ,  Song Wan

IPC: H02J3/46

CPC classification number: H02J3/466 ,  H02J2300/26

Abstract: This application discloses a photovoltaic station and a power coordination method for a photovoltaic station. Sample inverters are disposed in arrays requiring power adjustment in the photovoltaic station. Real-time active power of sample inverters in each array is obtained. Then, an available active capacity and an available reactive capacity of the array and available active capacities and available reactive capacities of all the arrays requiring power adjustment are obtained based on the real-time active power of the sample inverters. Finally, active power and reactive power of the photovoltaic station are separately allocated to the N arrays based on the available active capacities and the available reactive capacities respectively corresponding to the N arrays. Because the sample inverters come from the arrays requiring power adjustment, differences between inverters and differences between the arrays can be fully exploited, and the available active capacities of the arrays can be more accurately obtained by using the sample inverters. Therefore, a more accurate available power capacity of the photovoltaic station is obtained by using relatively accurate available active capacities.

公开(公告)号：US20230208147A1

公开(公告)日：2023-06-29

申请号：US18145830

申请日：2022-12-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Min Liu ,  Shuchao Wang ,  Yao Chang ,  Song Wan

IPC: H02J3/46

CPC classification number: H02J3/466 ,  H02J2300/26

Abstract: This application discloses a photovoltaic station and a power coordination method for a photovoltaic station. Sample inverters are disposed in arrays requiring power adjustment in the photovoltaic station. Real-time active power of sample inverters in each array is obtained. Then, an available active capacity and an available reactive capacity of the array and available active capacities and available reactive capacities of all the arrays requiring power adjustment are obtained based on the real-time active power of the sample inverters. Finally, active power and reactive power of the photovoltaic station are separately allocated to the N arrays based on the available active capacities and the available reactive capacities respectively corresponding to the N arrays. Because the sample inverters come from the arrays requiring power adjustment, differences between inverters and differences between the arrays can be fully exploited, and the available active capacities of the arrays can be more accurately obtained by using the sample inverters. Therefore, a more accurate available power capacity of the photovoltaic station is obtained by using relatively accurate available active capacities.