Method and apparatus for distributed power generation

Apparatus for generating AC power, comprising:na DC/AC inversion stage capable of generating at least two of a single-phase output power, a two-phase output power, and a three-phase output power; anda conversion control module, coupled to the DC/AC inversion stage, for driving the DC/AC inversion stage to selectively generate a number of phases of output power from the at least two of the single-phase output power, the two-phase output power, and the three-phase output power based on an input power to the DC/AC inversion stage, wherein the conversion control module (i) drives the DC/AC inversion stage to generate the single-phase output power when the input power is less than a first threshold, (ii) drives the DC/AC inversion stage to generate the two-phase output power when the input power is between the first threshold and a second threshold, and (iii) drives the DC/AC inversion stage to generate the three-phase output power when the input power exceeds the second threshold, and wherein the conversion control module drives the DC/AC inversion stage to operate in burst mode when the input power satisfies a burst mode threshold.

A method for generating AC power, comprising:ndetermining an input power to a DC/AC inversion stage, wherein the DC/AC inversion stage is capable of generating at least two of a single-phase output power, a two-phase output power, and a three-phase output power;driving the DC/AC inversion stage to selectively generate a number of phases of output power from the at least two of the single-phase output power, the two-phase output power, and the three-phase output power based on the input power, wherein driving the DC/AC inversion stage comprises (i) comparing the input power to at least one of a first or a second threshold, (ii) driving the DC/AC inversion stage to generate the single-phase output power when the input power is less than the first threshold, (iii) driving the DC/AC inversion stage to generate the two-phase output power when the input power is between the first and the second threshold, and (iv) driving the DC/AC inversion stage to generate the three-phase output power when the input power exceeds the second threshold;determining whether the input power satisfies a burst mode threshold; anddriving the DC/AC inversion stage to operate in burst mode when the input power satisfies the burst mode threshold.

A system for generating AC power, comprising:na branch circuit, comprising:a plurality of photovoltaic (PV) modules; anda plurality of inverters, coupled to the plurality of PV modules in a one-to-one correspondence, wherein each inverter of the plurality of inverters comprises (i) a DC/AC inversion stage capable of generating at least two of a single-phase output power, a two-phase output power, and a three-phase output power, and (ii) a conversion control module, coupled to the DC/AC inversion stage, for driving the DC/AC inversion stage to selectively generate a number of phases of output power from the at least two of the single-phase output power, the two-phase output power, and the three-phase output power based on an input power to the DC/AC inversion stage, wherein the conversion control module (i) drives the DC/AC inversion stage to generate the single-phase output power when the input power is less than a first threshold, (ii) drives the DC/AC inversion stage to generate the two-phase output power when the input power is between the first and a second threshold, and (iii) drives the DC/AC inversion stage to generate the three-phase output power when the input power exceeds the second threshold, and wherein the conversion control module drives the DC/AC inversion stage to operate in burst mode when the input power satisfies a burst mode threshold.