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Title: Output voltage quality evaluation of stand-alone four-leg inverters using linear and non-linear controllers
Author: Luís, Ricardo
Silva, José Fernando
Quadrado, José Carlos
Keywords: Stand-alone four-leg inverter
Non-linear voltage vector modulator
Voltage waveform quality
Issue Date: Apr-2017
Publisher: MDPI
Citation: LUÍS, Ricardo; SILVA, José Fernando; QUADRADO, José Carlos - Output voltage quality evaluation of stand-alone four-leg inverters using linear and non-linear controllers. Energies. ISSN 1996-1073. Vol. 10, N.º 4, (2017), pp. 1-20
Abstract: This paper presents the design and experimental voltage quality evaluation of controllers for the output voltages of 3-phase four-leg voltage source inverters. These inverters are needed in stand-alone power systems to supply linear and non-linear, balanced or unbalanced loads with constant RMS value voltages at fixed frequency. Comparisons include closed loop outer voltage controllers based on predictive, sliding mode and decoupled proportional-integral controllers in dqo synchronous space, fitted with an inner hysteretic current loop vector controller in alpha beta gamma space. The 3-phase four-leg VSI output voltages waveform quality is analysed under unbalanced and non-linear loads.
Peer review: yes
DOI: 10.3390/en10040504
ISSN: 1996-1073
Publisher Version: file:///C:/Users/utilizador2/Downloads/energies-10-00504.pdf
Appears in Collections:ISEL - Eng. Electrotécn. - Artigos

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