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:
Oct. 14, 2014
Filed:
Jun. 15, 2009
David Trainer, Alvaston, GB;
Colin Davidson, Walton, GB;
Ruchira Withanage, Stafford, GB;
Adrian Keitley, Stafford, GB;
Robert Whitehouse, Stafford, GB;
David Trainer, Alvaston, GB;
Colin Davidson, Walton, GB;
Ruchira Withanage, Stafford, GB;
Adrian Keitley, Stafford, GB;
Robert Whitehouse, Stafford, GB;
Alstom Technology Ltd, Baden, CH;
Abstract
A DC voltage source converter for use in high voltage DC power transmission comprising at least one chain-link converter connected between first and second DC terminals. The or each chain-link converter includes a chain of modules connected in series and each module including at least one pair of semiconductor switches connected in parallel with an energy storage device. The or each chain-link converter is operable when DC networks are connected to the first and second DC terminals to control switching of the modules to selectively charge or discharge the energy storage device of one or more of the modules, as required, to offset any difference in the DC voltage levels of the DC networks.