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. 15, 2020
Filed:
May. 03, 2016
Vestas Wind Systems A/s, Aarhus N, DK;
Philip Carne Kjær, Aarhus, DK;
VESTAS WIND SYSTEMS A/S, Aarhus N, DK;
Abstract
A wind turbine power generation system comprising a rotor shaft coupled to an electrical generator which generates a power output at a first AC voltage level; a converter system that converts the power output of the generator at the first AC voltage level to a converter power output at a second AC voltage level; a transformer that converts the converter system power output at the second AC voltage level to a generation system power output at a third AC voltage level; wherein the converter system comprises a machine-side converter, a line-side converter and a DC-link. The machine-side converter is a line-commutated rectifier, and the transformer is an online tap changer transformer. In another aspect, the invention resides in a wind power plant comprising at least one wind power generation system electrically coupled to a substation for onward transmission to a grid. The substation includes a point of common connection to which the one or more power generation systems electrically connected, and a transformer, wherein the transformer is an online tap changer transformer.