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Implementation of Active Anti-Islanding Methods Protection Devices for Grid Connected Photovoltaic Systems

Mohammed Laour, Achour Mahrane, Fethi Akel, and Douadi Bendib
Solar Development Equipment Unit (UDES/EPST CDER), /EPST-Renewable Energies Development Centre (CDER), National Road N°11, BP386, Bou-Ismail, 42415, Tipaza, Algeria
Abstract—Single-phase grid tied inverter is one among types of inverters widely used in photovoltaic generation systems due to the advantages they offer, in the absence of the grid, islanding situations occur. This paper describes model and simulation of such inverter in operation as distributed generation in electrical power system under islanding phenomena. In this configuration, it is imperative that the inverter automatically disconnects from the grid without remaining any residual voltage that can be dangerous for the plants and stakeholders. It is important to detect the islanding situation. For this purpose several techniques are used. We present in this article the implementation of the method called Slide-Mode frequency Shift (SMS) in the control of a single phase photovoltaic inverter, for which we provide a description of our SIMULINK implementations and their evaluations performed on the basis of comparison with Active Frequency Drift (AFD) method. Simulation results show that the developed algorithm detects the islanding phenomenon in the time approaching that required by the IEC and IEEE standards that secures the PV system connected to the grid.

Index Terms—PV systems, electrical grid, islanding detection methods, single phase PV inverter, distributed generation systems

Cite: Mohammed Laour, Achour Mahrane, Fethi Akel, and Douadi Bendib, "Implementation of Active Anti-Islanding Methods Protection Devices for Grid Connected Photovoltaic Systems," International Journal of Electrical Energy, Vol. 2, No. 2, pp. 89-93, June 2014. doi: 10.12720/ijoee.2.2.89-93
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