Avoid over voltages and unbalance voltage sags in grid connected PV plants using fuzzy based individual phase current control
Keywords:
GCPPP, Fuzzy Based Individual Phase Current Control, PV Plants, Transmission Framework Administrators, FSPLLAbstract
Free present control of each period of a three-phase voltage-source inverter under unbalanced voltage sags is proposed to viably meet grid code prerequisites for framework associated photovoltaic power plants (GCPPPs). Under current grid codes, GCPPPs should booster network voltages by infusing reactive current during voltage lists. Such infusion must not permit the network voltages of the non-defective phases to surpass 110% of their nominal esteem. Be that as it may, grid over-voltages can happen in the non-defective phases, particularly if the currents infused into the grid by the GCPPP are adjusted. In light of another necessity of the European Network of Transmission Framework Operators distributed in 2012, a transmission framework administrator is permitted to present a prerequisite for uneven current infusion. In this letter, this grid code is tended to by controlling individual phases and infusing unbalanced currents into the grid during voltage droops.
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