Digital Control Of A Three-phase Ups

Autor: C. H. F. Felix, P. F. Seixas, P. C. Cortizo
Jazyk: English<br />Portuguese
Rok vydání: 2007
Předmět:
Zdroj: Eletrônica de Potência, Vol 12, Iss 3 (2007)
Druh dokumentu: article
ISSN: 1414-8862
1984-557X
DOI: 10.18618/REP.2007.3.189196
Popis: This paper presents a design methodology for the digital controllers of a three-phase UPS (Uninterruptible Power Supply). Upon a state-feedback control topology, a systematic method for pole placement and determination of controller gains was developed. In order to attest the efficiency of the adopted control scheme, experimental tests were carried out on a 4kVA three-phase on-line UPS, resulting in unity power factor operation of the controlled rectifier and low harmonic distortion of inverter output voltage, even under heavy non-linear loads.
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