Search results for: Hamid Ouadi
article
Asian Journal of Control > 22 > 3 > 1147 - 1162
The increasing penetration of power electronics in electrical equipment entails a significant impact on the deterioration of power supply quality. In this paper, the problem of power quality is addressed for distorted three‐phase four‐wire power grids supplying non‐linear unbalanced loads. A unified power quality conditioner (UPQC) is considered to ensure satisfactory electrical energy quality. To...
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This paper deals with the problem of the constant-power operating envelope at high speed in the wind energy conversion systems. The considered aero-generator involves a hybrid excitation synchronous generator (HESG). To operate at constant-power, it is recommended to use a feedback flux-weakening control, the hybrid excitation circuit is compatible with the extended-speed-range constant-power operation,...
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The increasing use of nonlinear loads entails serious electrical energy quality problems in power grids. In this regards, the Three-level shunt active power filter (SAPF) is proposed. The considered SAPF is constituted by an AC/DC Three-level NPC inverter. This latter is connected to the point of common coupling (PCC) through a high order filter instead of conventional filter L. Indeed, a new model...
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The problem of interfacing a Photovoltaic Generator (PVG) with an electrical three phase grid is addressed in the presence of nonlinear loads. The connection of the PVG to the power grid is done in two stages with both a DC/DC converter and DC/AC multilevel inverter. This latter is based on a Neutral Point Converter (NPC) operating simultaneously as an interfacing system and as a shunt active power...
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This paper deals with the problem of interfacing a wind turbine generator with an electrical three phase grid in the presence of nonlinear loads. Wind systems are generally connected to the grid through an AC/DC inverter in the generator side, followed by a DC/AC converter in the grid side. In this work, the considered DC/AC converter is based on multilevel neutral point clamped topology, and will...
