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sexta-feira, 20 de junho de 2014
A Comparative Analysis of Multiloop Voltage Regulation Strategies for Single and Three-Phase UPS Systems Poh Chiang Loh, Michael John Newman,
Abstract—Most of the many reported control algorithms for uninterruptible power supplies (UPSs) use either filter inductor or filter capacitor currents as feedback variables to regulate the output voltage. This paper explores the fundamental performance issues associated with the use of these quantities as feedback variables, with a view to determining their contribution to the transient system response and output harmonic compensation in any particular situation. A proportional plus resonant (P+resonant) compensator is then added into the outer voltage regulation loop to achieve zero steady error, to develop a high performance UPS control algorithm, which is applicable to both single-phase and three-phase systems. Theory, simulation, and experimental results are presented in the paper.
FULL PAPER
https://www.mediafire.com/?vjjvhvmmpfmarsa
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