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:
May. 09, 2023
Filed:
Nov. 21, 2019
Zhuzhou Crrc Times Electric Co., Ltd., Hunan, CN;
Kean Liu, Hunan, CN;
Jing Shang, Hunan, CN;
Minggao Zeng, Hunan, CN;
Qingliang Zhao, Hunan, CN;
Shaolong Xu, Hunan, CN;
Liangjie Liu, Hunan, CN;
Weiwei Gan, Hunan, CN;
Wei Guo, Hunan, CN;
Fang Yuan, Hunan, CN;
Chaoyong Lin, Hunan, CN;
Xuebiao Peng, Hunan, CN;
Jinwei Mo, Hunan, CN;
Gengliang He, Hunan, CN;
Lifen Yang, Hunan, CN;
Leilei Ding, Hunan, CN;
Bingzhang Li, Hunan, CN;
Qiao He, Hunan, CN;
Chao Du, Hunan, CN;
Hao Li, Hunan, CN;
ZHUZHOU CRRC TIMES ELECTRIC CO., LTD., Hunan, CN;
Abstract
Provided are a method and system for controlling a voltage. The method includes: acquiring a current output voltage of an inverter; calculating a current voltage error of the current output voltage relative to a given output voltage; inputting the current voltage error into a fuzzy controller to determine a target output voltage of the inverter; determining an amplitude adjustment command based on a difference between an amplitude of the target output voltage and an amplitude of the current output voltage; determining a phase adjustment command based on a difference between a phase of the target output voltage and a phase of the current output voltage; and adjusting an amplitude and a phase of an output voltage of the inverter according to the amplitude adjustment command and the phase adjustment command respectively, to maintain the output voltage of the inverter within a preset range.