Patent ID: 9461556
Filing Date: 2016-10-04
CPC Classification: H02J,H02M

Claim Text:
1. A multi-mode, regenerative AC-DC-AC inverter power system, comprising: a first inverter bridge with controllable switches configurable for coupling to line inputs from a 3-phase AC power source; a bi-phase matrix (BP-Mtx) containing an upper pair of reverse current oriented, series-connected first set of controllable BP-Mtx switches, a lower pair of reverse current oriented, series-connected second set of controllable BP-Mtx switches, wherein inputs to the first and second sets of controllable BP-Mtx switches are coupled to inputs of the first inverter bridge, and outputs of the first and second sets of the controllable BP-Mtx switches are coupled to inputs to a third set of reverse current oriented, series-connected controllable BP-Mtx switches bridging the first and second sets of BP-Mtx switches, wherein outputs of the first, second and third BP-Mtx switches are from junctions of each BP-Mtx switch pair; a chargeable DC power supply coupled to a center point of the third set of controllable BP-Mtx switches; a DC-bus coupled to outputs of the first inverter bridge; and a second inverter bridge with controllable switches, inputs thereof coupled to an opposite end of the DC-bus from the first inverter bridge, and outputs thereof configurable for coupling to a load, wherein switches of at least the first inverter bridge, second inverter bridge, and BP-Mtx are controllable to charge the DC power supply from at least one of excess voltage from the line inputs and DC-bus, and to provide compensating energy from the DC power supply for load or line input perturbations.