METHOD AND APPARATUS FOR REACTIVE POWER CAPABLE INVERTERS

摘要

A system, method, and apparatus for converting DC input power to AC output power, including a DC-AC inverter employing: a first feedback loop for determining a maximum power point (MPP) and operating the DC-AC inverter proximate the MPP. A second feedback loop for determining a difference between a first power measurement and a second power measurement, producing an error signal indicative of the difference, and coupling the error signal to the first feedback loop to adjust at least one operating parameter of the DC-AC inverter to drive toward the MPP, where the first power measurement and the second power measurement are each determined based on a phase shift between an AC output voltage from the DC-AC inverter and an AC output current from the DC-AC inverter.

主权项

1. An apparatus for converting DC input power to AC output power, comprising:
a DC-AC inverter employing:
a first feedback loop for determining a maximum power point (MPP) and operating the DC-AC inverter proximate the MPP; and a second feedback loop for determining a difference between a first power measurement and a second power measurement, producing an error signal indicative of the difference, and coupling the error signal to the first feedback loop to adjust at least one operating parameter of the DC-AC inverter to drive toward the MPP, wherein the first power measurement and the second power measurement are each determined based on a phase shift between an AC output voltage from the DC-AC inverter and an AC output current from the DC-AC inverter.