Examinando por Materia "INDUCTORES ELECTRICOS"

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  • Artículo de Publicación Periódica
    Control system to balance internal currents of a multilevel current-source inverter
    (2018-03) Cossutta, Pablo; Aguirre, Miguel Pablo; Angélico Engelhardt, Mathias; Valla, María Inés
    "Multilevel current-source inverters have proved to be a high-performance option for industrial applications due to reliability, fault-tolerant capabilities, quasi soft switching, and the use of lower filter capacitor values. One of its major challenges is to balance the internal currents that feed each module. Imbalances could be caused by manufacturing deviations of the reactive components, temperature drift or aging, nonlinear loads, and modulation errors, among others. Using the well-known phase-shift carrier sinusoidal pulse width modulation, a slight change in the amplitude of the carrier signals produces a variation in the average value of the internal currents. In this paper, we introduce a control strategy to balance the current of the inductors and its implementation in a prototype. Simulation and experimental results at different operating conditions show a robust behavior of the control system along with a low distortion in the output voltages and currents of the converter."
  • Ponencia en Congreso
    Multilevel current source inverter to improve power quality in a distribution network
    (2010-07) Aguirre, Miguel Pablo; Calviño, Laura; Corasaniti, V. Fabián; Valla, María Inés
    "This paper deals with the problem of reactive power and harmonics in a standard medium voltage (MV) distribution network. It presents the design of a shunt active filter implemented with a multilevel current source inverter (MCSI) connected to the medium voltage level of a power distribution system. The proposed MCSI is made by identical modules where all inductors carry the same amount of current. The current balance is achieved by a Phase-Shifted Carrier SPWM proper implementation. The performance of proposed active filter is thoroughly simulated with Matlab Simulink. It shows very good behavior in steady state and transient conditions."