Artículos de revistas
Digital Predictive Current Control of a Three-Phase Four-Leg Inverter
Fuente: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS Volumen: 60 Número: 11 Páginas: 4903-4912 DOI: 10.1109/TIE.2012.2219837
Rivera, M (autor para petición de copias) Univ Talca, Dept Ind Technol, Curico 3341717, ChileWhile the classical control techniques for three-phase two-level four-leg inverters are based on pulsewidth modulation or 3-D space vector modulation, this paper presents a simple digital current control strategy without the modulation stage. The proposed controller uses the discrete nature of the four-leg inverter and filter to generate the switching states. Using a predictive cost function, the optimal switching state to be applied in the next sampling interval is selected. The proposed controller offers excellent reference tracking with less current harmonic distortion for balanced and unbalanced loading conditions. The feasibility of the proposed strategy is verified by digital implementation on a dSPACE DS1104-based rapid prototype platform.
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