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METHOD AND SYSTEM FOR A GAS TUBE-BASED CURRENT SOURCE HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM

United States Patent Application

*** PATENT GRANTED ***
20170047857
9,748,857
A1
View the Complete Application 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)
14/ 824,657
August 12, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0001] 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.