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Title: Influences of Power Electronics Converters on Current-Voltage behaviors during faults in DGUs-Part II: Photovoltaic Systems
Authors: Saleh, S.A.
Aljankawey, Abdualah
Alsayid, Basim
Abu-Khaizaran, Muhammad
Keywords: Photovoltaic systems, power electronic converters, point-of-common-coupling, distributed generation units, power system faults, and protection systems.
Issue Date: Oct-2014
Publisher: IEEE IAS conference proceedings
Abstract: Photovoltaic (PV) systems have become a popular type of distributed generation units (DGUs) for small and medium levels of renewable energy generation. When grid-connected, these DGUs are designed and operated to deliver electric power to their host grid through power electronic converters (PECs). The nonlinear and switched natures, along with the control actions, of these PECs can influence the voltage-current behaviors during faults in grid-connected PV systems. This paper experimentally investigates the voltage-current behaviors during faults occurring in grid-connected PV systems. Results of these investigation show that voltages and currents at the point-of-common-coupling (PCC) experience changes in their magnitudes and harmonic distortions due to faults occurring on both sides of PCC. These results can be incorporated in the improvement of the accuracy and reliability of protective devices used for grid-connected PV systems.
Appears in Collections:Engineering and Technology Faculty

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