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:
May. 30, 2017
Filed:
Dec. 19, 2011
Fabienne Chataignere, Ludvika, SE;
Lars Döfnäs, Ludvika, SE;
Rolf Ottersten, Ludvika, SE;
Patrik Sandquist, Örebro, SE;
Roland Siljeström, Skultuna, SE;
Erika Siljeström, Skultuna, SE;
Fabienne Chataignere, Ludvika, SE;
Lars Döfnäs, Ludvika, SE;
Rolf Ottersten, Ludvika, SE;
Patrik Sandquist, Örebro, SE;
Roland Siljeström, Skultuna, SE;
ABB SCHWEIZ AG, Baden, CH;
Abstract
A voltage source converter includes a black start control unit and cells, where each cell includes a first switch between a first end of a cell capacitor and a first cell terminal, a second switch between a second end of the cell capacitor and the first cell terminal, where a second cell terminal is provided via the first or the second end of the cell capacitor, a first power supply unit and a second power supply unit, where the black start control unit is configured to perform, after the initial application of a DC voltage to a cell terminal of a cell and the subsequent initial charging of the chargeable power supply unit of one of the switches, charging of an uncharged power supply unit of the other switch through repeatedly turning on and off the switch with initially charged power supply unit.