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System and method for single-phase, single-stage grid-interactive inverter

United States Patent

9,124,136
September 1, 2015
View the Complete Patent at the US Patent & Trademark Office
The present invention provides for the integration of distributed renewable energy sources/storages utilizing a cascaded DC-AC inverter, thereby eliminating the need for a DC-DC converter. The ability to segment the energy sources and energy storages improves the maintenance capability and system reliability of the distributed generation system, as well as achieve wide range reactive power compensation. In the absence of a DC-DC converter, single stage energy conversion can be achieved to enhance energy conversion efficiency.
Liu; Liming (Tallahassee, FL), Li; Hui (Tallahassee, FL)
The Florida State University Research Foundation, Inc. (Tallahassee, FL)
13/ 493,528
June 11, 2012
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under DE-FC26-07NT43221 awarded by the Department of Energy. The Government has certain rights in the invention.