Abstract
Nowadays, the majority of electronic equipment behaves as nonlinear loads, introducing power quality problems into the power grid, namely, current harmonics and low power factor. These problems contribute to reduce the efficiency of the power grid and can cause malfunctioning of se
Highlights
The increasing use of the power converters contributes to the deterioration of the voltage and current waveforms of the power grid, which causes higher costs due to the incorrect functioning of the equipment connected to the power grid [1][2]
As presented in [8], in [9] and in [10], the functionalities of shunt active power filter (SAPF) can be incorporated in electric vehicle battery chargers, representing a relevant contribution for the future smart grids, where the electric vehicle can act as a dynamic controllable load in the power grid
The main contributions of this paper are: (a) A novel topology for a SAPF based on a current-source power converter with reduced dc-link; (b) A SAPF constituted by RB-Insulated Gate Bipolar Transistors (IGBTs) in the main power electronics converter; (c) An experimental validation of the proposed SAPF
Summary
The increasing use of the power converters contributes to the deterioration of the voltage and current waveforms of the power grid, which causes higher costs due to the incorrect functioning of the equipment connected to the power grid [1][2]. The dc-ac power converter is composed of semiconductors totally controlled such as Metal Oxide Semiconductor Field Effect Transistors (MOSFETs), Insulated Gate Bipolar Transistors (IGBTs), or Reverse Blocking-IGBTs (RB-IGBTs) These devices, in comparison with gate turn-off thyristors and bipolar junction transistors, can operate with higher switching frequencies, requiring smaller output passive filters, translating into more efficient, compact and cheaper solutions. An alternative to this method consists in replace the IGBTs with the diodes in series by RB-IGBTs, where the use of diodes becomes unnecessary [15][16] This type of SAPF has easy short-circuit protection, an excellent current control capability and high efficiency with low power loads over voltage-source SAPF [17]. The main contributions of this paper are: (a) A novel topology for a SAPF based on a current-source power converter with reduced dc-link; (b) A SAPF constituted by RB-IGBTs in the main power electronics converter; (c) An experimental validation of the proposed SAPF
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