The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 14, 2025

Filed:

May. 27, 2022
Applicant:

Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Zhiwu Xu, Shanghai, CN;

Yongbing Gao, Shanghai, CN;

Niantao Jiang, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/48 (2007.01); H02J 3/38 (2006.01); H02M 1/32 (2007.01); H02S 40/32 (2014.01);
U.S. Cl.
CPC ...
H02M 7/48 (2013.01); H02J 3/381 (2013.01); H02M 1/32 (2013.01); H02S 40/32 (2014.12); H02J 2300/24 (2020.01);
Abstract

A method and an apparatus for detecting a short circuit of an inverter, and an inverter are provided. A voltage of a common bus is increased when a plurality of boost circuits in the inverter are all in a non-working state, and after circuit parameters of input sides of all the plurality of boost circuits are detected, a boost circuit in which a diode is short-circuited in the plurality of boost circuits is further determined based on the circuit parameters of the input sides of the boost circuits. According to the method and the apparatus for detecting a short circuit of an inverter, and the inverter, circuit complexity of the inverter can be reduced, and circuit complexity of a photovoltaic power generation system including the inverter is reduced.


Find Patent Forward Citations

Loading…