Patent ID: 8730702
Filing Date: 2014-05-20
Classification: H02M,Y02B,Y02E

Abstract:
1. A DC current source to AC current source power converter apparatus for supplying power to a three-phase AC electrical grid comprising; a DC current source and a means for selectively coupling said DC current source to the three-phase AC electrical grid for a portion of an AC electrical grid cycle synchronized with electrical grid phase voltages and signs for a fixed period on each phase and wherein said means excludes an energy storage capacitor located either directly across the DC current source or effectively across the DC current source, with respect to altering the DC current source impedance as seen by the power converter apparatus and further comprising an inductor in series with said DC current source and a semiconductor switching matrix wherein said semiconductor switching matrix comprises a means for selectively coupling said DC current source directly across two phases of the three-phase AC electrical grid, synchronized with three-phase AC electrical grid phase voltages and signs and wherein said semiconductor switching matrix further comprises a means for regulating current into the remaining third phase of the three-phase AC electrical grid.