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:
Oct. 08, 2024
Filed:
Feb. 28, 2020
Abb Schweiz Ag, Baden, CH;
Xing Huang, Beijing, CN;
Hailian Xie, Beijing, CN;
Guangming Pei, Beijing, CN;
Hua Wei, Beijing, CN;
Min Li, Beijing, CN;
ABB SCHWEIZ AG, Baden, CH;
Abstract
Embodiments of present disclosure relate to an apparatus and a method for controlling a delta-connected cascaded multilevel converter. The apparatus () for controlling a delta-connected cascaded multilevel converter () comprises: a converter controller () configured to: receive current signals indicating phase currents flowing through respective phase arms of the converter (); determine a harmonic current signal indicating a circulating current of the converter () from the current signals; and generate, based on the determined harmonic current signal and a reference current signal, a harmonic voltage signal to cause an amplitude of the circulating current flowing through the phase arms of the converter () to be a predetermined amplitude.