Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 61, Issue 3, Pages 1528-1538Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2013.2259781
Keywords
Harmonic rejection; linear matrix inequality (LMI); multiple resonant controllers; sinusoidal reference tracking; uninterruptible power supply (UPS)
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Funding
- Brazilian National Council for Research (CNPq) [303842/2011-3, 302136/2011-8, 306210/2009-6]
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This paper deals with the synthesis problem of multiple resonant controllers for uninterruptible-power-supply systems in a robust control framework. The controller parameters aiming the tracking of sinusoidal reference signals (with zero steady-state error) and the rejection of harmonic components of the output voltage (when supplying energy to time-varying nonlinear loads) are determined by means of a convex optimization problem subject to a set of linear-matrix-inequality constraints. Results from a 5.0-kVA experimental setup are considered to illustrate and validate the proposed approach.
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