Smart Renewable Power Generation System With Grid and DC Source Flexibility

摘要

A method and apparatus is disclosed relating to smart renewable power generation systems with grid and DC source flexibility 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; (3) supply the AC power to the electric grid or to an off-grid electric circuit to power AC loads; (4) supply DC power through one or multiple DC output ports to power DC loads; and (5) charge batteries. Various types of on-grid, off-grid, and on/off-grid DC flexible power inverters are described to demonstrate the innovation for delivering flexible, cost-effective, and user-friendly power generation systems to harvest any form of renewable energy available and convert it to usable electricity.

主权项

1. An on/off-grid DC source flexible power inverter, comprising:
a) multiple DC input ports constructed and arranged to be connected to multiple DC sources including at least one photovoltaic solar panel, at least one wind generator, or at least one battery, or any combination thereof; b) an on-grid AC output port constructed and arranged to be connected to an electric grid; c) an off-grid AC output port constructed and arranged to be connected to an off-grid AC circuit; and d) a DC-AC inverter constructed and arranged to receive DC power from one or multiple DC input ports based on pre-defined DC source selection criteria, invert the DC power to AC power, and supply AC power through said on-grid AC output port to the electric grid in on-grid mode when grid is on, or supply AC power through said off-grid AC output port to power AC loads in the off-grid AC circuit in off-grid mode when grid is down.