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.
Patent No.:
Date of Patent:
Jul. 09, 2019
Filed:
Dec. 27, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
Fangcheng Liu, Shanghai, CN;
Kai Xin, Shanghai, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present disclosure relates to the field of inverters, and to a method for detecting grid connection stability of an inverter and an inverter. The method includes: detecting a line voltage and a current of the alternating current port to obtain a first group of line voltage values and a first group of current values; detecting the line voltage and the current of the alternating current port to obtain a second group of line voltage values and a second group of current values; obtaining an equivalent impedance matrix of the power grid according to the first group of line voltage values, the first group of current values, the second group of line voltage values, and the second group of current values; and determining, by the inverter according to an equivalent admittance matrix and the equivalent impedance matrix, whether a stability requirement of the inverter is met.