Grid fault Control Scheme for Peak Current Reduction in Photovoltaic Inverters during Voltage Sag
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 8
Abstract
In this paper presents a control scheme for grid interactive photovoltaic inverters to minimize peak current during unbalanced voltage sag. Power quality of a photovoltaic (PV) inverter deteriorates due to the presence of grid faults with voltage sag. In grid connected PV important feature is the ride-through capability, which allows the device to remain connected to the grid during different types of grid disturbances and avoid the need to disconnect. But during the voltage sag, the source should operate with increasing converter currents to maintain the injection of the generated power in the system. This abnormal operation may result in undesired system disconnections due to overcurrent during voltage sag. In this paper discuss a control scheme provide, controller for a PV three-phase inverter that ensures minimum peakvalues in the grid- injected currents during voltage sag
Authors and Affiliations
Jinu John , Alan. M. George
Keywords
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- EP ID EP88814
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