MULTI-PORT INVERTER/CONVERTER SYSTEM FOR DYNAMIC MICRO-GRID APPLICATIONS

摘要

The present invention provides a novel electrical power system for micro-grid and distributed generation systems. The invention provides a common, singular Alternating Current (AC) electrical port for multiple Direct Current (DC) generation sources, DC loads and DC electrical energy storage sources. The invention balances the flow of energy through said storage, load and generation sources to provide a constant voltage and frequency to a micro-grid or a regulated real and reactive power component to an electric utility grid. A centralized controller is capable of commanding bi-directional current flow on each DC port in order to maintain an optimum State of Charge such that the storage medium can service both the utility grid and a micro-grid and dynamically transfer between the two operational modes.