MULTIPLE INPUT THREE-PHASE INVERTER WITH INDEPENDENT MPPT AND HIGH EFFICIENCY

摘要

Systems, methods, and devices relating to power converters. A power conditioning system uses multiple DC/DC power converter blocks. The output of each of the converter blocks is received by an energy storage and combiner block. The output of the combiner block is then received by a DC/AC inverter. The various components of the power conditioning system are controlled by a central controller. The power semiconductors within each DC/DC converter are controlled by a subsystem of the central controller and MPPT is also provided by the central controller. Also provided for are a novel three-phase DC/AC inverter topology with reduced output ripple and a control scheme for controlling the power semiconductors in the DC/AC inverter.

主权项

1. A system for converting power from at least one DC power source for transmission to an AC power grid, the system comprising:
at least one DC/DC converter block, each DC/DC converter block being for receiving DC power from one of said at least one DC power source and for producing a power output; an energy storage and combiner block for receiving said power output of said at least one DC/DC converter block; a DC/AC inverter block for receiving a power output of said energy storage and combiner block, said DC/AC inverter block producing an AC power output for transmission to said AC power grid; a controller block for controlling each of said at least one DC/DC converter blocks, said energy storage and combiner block, and said DC/AC inverter block;wherein
said controller block receives power and voltage characteristics of each of said at least one DC power source; said controller block receives power and voltage characteristics of said AC power output of said DC/AC inverter block; said controller block receives voltage characteristics of said power output of said energy storage and combiner block; said controller block provides control gate pulses for each of said at least one DC/DC converter blocks and for said DC/AC inverter block.