Manel Jebali-Ben Ghorbal

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The penetration of the distributed power generation systems (DPGSs) based on renewable sources (PV, WT) is strongly dependent on the quality of the power injected to the utility grid. However, the grid impedance variation, mainly caused by grid faults somewhere in the electric network, can degrade the power quality and even damage some sensitive loads(More)
This paper presents a fast passive islanding detection method based on virtual phase-shift between the real voltage seen at the point of common coupling and its created image in a Microgrid. The proposed algorithm consists of extracting the positive and negative sequences of the voltage at this point using a second order generalized integrator in two-way;(More)
This paper focuses on a hybrid islanding detection algorithm for parallel-inverters-based microgrids. The proposed algorithm is implemented on the unit ensuring the control of the intelligent bypass switch connecting or disconnecting the microgrid from the utility. This method employs a grid impedance estimation technique that uses resonance excitation once(More)
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