Patent ID: 11258267

Abstract:
A method and apparatus is disclosed relating to smart Microgrids or off-grid solar systems with grid power integration supported by AC assisted off-grid power inverters that can (1) intelligently and selectively pull power from one or multiple DC sources including solar panels, wind generators, and batteries based on certain criteria; (2) invert DC power to AC power as generated AC power; (3) intelligently pull power from a connected AC source including grid AC, a gas generator, or a wind generator as input AC power; (4) combine the generated AC power with the input AC power; (5) supply the combined AC power, or the generated AC power, or the input AC power to an off-grid circuit to power various types of AC loads; (6) send no power to the connected AC source; (7) maximize DC power production; (8) minimize the consumption of input AC power; and (9) achieve good system performance under DC and AC power variations and load changes.