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:
Feb. 18, 2025
Filed:
May. 21, 2021
Applicant:
Sungrow Power Supply Co., Ltd., Hefei, CN;
Inventors:
Assignee:
Sungrow Power Supply Co., Ltd., Hefei, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2007.01); H02M 1/08 (2006.01); H02M 3/335 (2006.01); H02M 7/217 (2006.01); H02M 7/483 (2007.01); H02M 7/49 (2007.01);
U.S. Cl.
CPC ...
H02M 1/007 (2021.05); H02M 1/0074 (2021.05); H02M 1/081 (2013.01); H02M 3/33576 (2013.01); H02M 7/217 (2013.01); H02M 7/483 (2013.01); H02M 7/49 (2013.01);
Abstract
A cascaded power electronic transformer and a method for controlling the same are provided. The method includes: calculating electrical angles θand θof an stransformer and a compensation electrical angle θof a jtransformer; adding the compensation electrical angle θto the electrical angle θof the jtransformer, to obtain a compensated electrical angle θof the jtransformer; and calculating a square wave of a bridge arm voltage of each of the m primary converters and the r secondary converters of the stransformer based on the electrical angle θand the electrical angle θof the stransformer after compensation.