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:
Aug. 27, 2024
Filed:
Jun. 15, 2022
Abb Schweiz Ag, Baden, CH;
ABB Schweiz AG, Baden, CH;
Abstract
A converter system includes a rectifier, a DC link stage and an inverter connected in series. A control unit includes a slow reference frame angle determination unit that generates a slow reference frame angle θrepresenting an angle that is slowly following a grid phase deviation, and a fast Phase Locked Loop generating a fast reference frame angle θrepresenting an angle that is fast following a grid phase deviation. The control unit uses the slow reference frame angle θand the fast reference frame angle θto control the rectifier output current, and the fast reference frame angle θto control the inverter output voltage and to synchronize the inverter output voltage with the grid voltage.