Title :
A novel unity power factor low-EMI uninterruptible power supply
Author :
De Rooij, Michael Andrew ; Ferreira, Jan A. ; Van Wyk, Jacobus Daniel
Author_Institution :
Energy Lab., Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
This paper investigates a novel uninterruptible power supply (UPS) configuration that features low EMI and draws unity power factor without the addition of a preregulator. A 100 Hz pulsating bus is used in contrast to a smoothed DC bus. The compound converter structure exhibits high efficiency. A 3.3 kW single-phase experimental converter is evaluated
Keywords :
electromagnetic interference; power convertors; power factor; switching circuits; uninterruptible power supplies; 100 Hz; 3.3 kW; UPS; compound converter structure; high efficiency; low-EMI; preregulator; pulsating bus; single-phase converter; smoothed DC bus; switching converter; uninterruptible power supply; unity power factor; DC-DC power converters; Electromagnetic interference; Filters; Galvanizing; Pulse transformers; Pulse width modulation inverters; Reactive power; Topology; Uninterruptible power systems; Zero current switching;
Journal_Title :
Industry Applications, IEEE Transactions on
