SYSTEMS AND METHODS FOR UNINTERRUPTIBLE POWER SUPPLY CONTROL

摘要

Systems and methods are provided for distributing power to a load (340) by controlling an uninterruptible power supply (300) that has an inverter (315) and a filter (320), where the filter has an inductor (325) and a capacitor (330). The systems and methods apply a pulse width modulation control signal to the inverter, sample inverter inductor current (IL) and compare the inductor current to a reference current. A duty cycle of the pulse width modulation control signal is adjusted to drive the inductor current at a second sampling time to a value substantially equal to a reference current at a first sampling time. The systems and methods can filter harmonic distortion from output signals and control uninterruptible power supply output.