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Method and system for a gas tube-based current source high voltage direct current transmission system

United States Patent

August 29, 2017
View the Complete Patent at the US Patent & Trademark Office
A high-voltage direct-current (HVDC) transmission system includes an alternating current (AC) electrical source and a power converter channel that includes an AC-DC converter electrically coupled to the electrical source and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and the DC-AC inverter each include a plurality of legs that includes at least one switching device. The power converter channel further includes a commutating circuit communicatively coupled to one or more switching devices. The commutating circuit is configured to "switch on" one of the switching devices during a first portion of a cycle of the H-bridge switching circuits and "switch off" the switching device during a second portion of the cycle of the first and second H-bridge switching circuits.
She; Xu (Clifton Park, NY), Chokhawala; Rahul Shantilal (Niskayuna, NY), Bray; James William (Niskayuna, NY), Sommerer; Timothy John (Ballston Spa, NY), Zhou; Rui (Niskayuna, NY), Zhang; Di (Niskayuna, NY)
General Electric Company (Niskayuna, NY)
14/ 824,657
August 12, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under contract number DE-AR0000298 awarded by the Department of Energy (DOE). The Government may have certain rights in this invention.