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:
Dec. 23, 2025
Filed:
May. 23, 2023
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Arijit Banerjee, Urbana, IL (US);
Debranjan Mukherjee, Champaign, IL (US);
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Abstract
A generator-rectifier system and grid interface includes an active rectifier that accepts an input from an ac port of a multi-port permanent magnet synchronous generator. Passive rectifiers are connected to the others of the plurality of ac ports. Connections provide outputs of the active and passive rectifiers. A first converter operates at a fixed duty ratio driven by the outputs to interface with a dc grid or at a low grid frequency switching waveform to create a grid frequency ac output to interface with an ac grid. A second converter is connected the output of the active rectifier, and is controlled at a variable duty ratio to interface with the dc grid or an above-grid frequency switching waveform to create an above-grid frequency ac waveform to interface with an ac grid. Connections provide a serial stack of outputs of the first and second converters.