US 9,812,949 B2
Poly-phase inverter with independent phase control
Andrew Stephen Hintz, Avon, IN (US)
Assigned to Indy Power Systems LLC, Carmel, IN (US)
Filed by Andrew Stephen Hintz, Avon, IN (US)
Filed on Oct. 10, 2013, as Appl. No. 14/50,959.
Prior Publication US 2015/0103574 A1, Apr. 16, 2015
Int. Cl. H02M 1/42 (2007.01); H02J 3/28 (2006.01); H02J 3/18 (2006.01); H02M 7/5387 (2007.01); H02M 7/797 (2006.01); H02J 3/26 (2006.01); H02J 3/38 (2006.01); H02J 7/34 (2006.01); H02J 7/35 (2006.01); H02M 3/04 (2006.01); H02M 1/00 (2006.01)
CPC H02M 1/42 (2013.01) [H02J 3/18 (2013.01); H02J 3/26 (2013.01); H02J 3/28 (2013.01); H02J 3/382 (2013.01); H02J 7/345 (2013.01); H02J 7/35 (2013.01); H02M 7/53875 (2013.01); H02M 7/797 (2013.01); H02M 3/04 (2013.01); H02M 2001/007 (2013.01); Y02B 70/12 (2013.01); Y02E 40/30 (2013.01); Y02E 40/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bi-directional poly-phase DC/AC inverter comprising:
an AC side configured to receive input AC power from an AC source and configured to source output AC power to an AC load, each of the input and output AC power comprising a plurality of AC phases, each AC phase of the plurality of AC phases including a current waveform having a current amplitude and a current phase angle and a voltage waveform having a voltage amplitude and a voltage phase angle;
a DC side configured to receive input DC power and configured to source output DC power;
wherein when the output AC power is greater than the input AC power, the input DC power from the DC side is supplied through the bi-directional poly-phase DC/AC inverter to provide additional AC power to the AC load; and when the input AC power is greater than the output AC power, excess power is provided through the bi-directional poly-phase DC/AC inverter to the DC side as the output DC power; and
wherein for each AC phase of the plurality of AC phases, the current amplitude of the current waveform is controlled independently of the current amplitude of the current waveform in the other AC phases of the plurality of AC phases, and for each AC phase of the plurality of AC phases, the difference between the current and voltage phase angles is controlled independently of the difference between the current and voltage phase angles in the other AC phases of the plurality of AC phases.