A novel UPS using high-frequency switch-mode rectifier and high-frequency PWM inverter

13 January 2003

conference paper
conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 53-57 vol.1
https://doi.org/10.1109/pesc.1989.48472

Abstract

An uninterruptible power supply (UPS) resorting to high-frequency switch-mode rectifier (SMR) techniques and high-frequency pulse-width-modulated inverter techniques has been developed. The input current of UPS is controlled to maintain a sinusoidal waveform by SMR, and the output voltage waveform distortion is suppressed to a low level by instantaneous voltage control. This UPS is suitable for a protector of computer-applied equipment.

Keywords

UNINTERRUPTIBLE POWER SYSTEMS
RECTIFIERS
PULSE WIDTH MODULATION INVERTERS
CIRCUITS
SWITCHES
VOLTAGE
BATTERIES
POWER SUPPLIES
POWER SYSTEM HARMONICS
FREQUENCY

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