DIFFERENTIAL GEOMETRY BASED DC/AC INVERTERS

Abstract: a dc/ac inverter and microinverter architectures using the dc/ac inverter are disclosed. the dc/ac inverter is based on a differential geometry control scheme to balance and optimize the flying capacitor voltages across the flying capacitors used in the inverter's power circuit. based on changing inverter and overall system conditions, including capacitor voltages, grid voltages, grid current, and dc bus voltages, desired fields are generated. these fields are used to balance capacitor voltages such that capacitor voltage values converge, over time, to an optimal solution.

Inventor(s): Majid Pahlevaninezhad, Praveen Jain

CPC Classification: H02M7/4837 (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers ; dynamo-electric converters ; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters ))

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