distributed generation voltage synchronization when the state changes from islanding to grid connected
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abstract
abstract: in this paper a control scheme for grid-connected operation mode and the island state of distributed generation is presented. in normal conditions, every inverter dg system in micro-grids to supply a preset power, normally operate in a constant current control mode. when micro-grids removed from the network, dg inverter of each system must recognize the island and change position to voltage control mode. in this situation micro-grids supply the fixed voltage to local load. in this paper, a synchronization algorithm is provided for reconnection to the network. the results of the simulation dg, network controllers, and the islanding is provided in matlab simulink.
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تحقیقات نوین در برقجلد ۲، شماره ۱، صفحات ۵۱-۵۸
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