Abstract
In this paper a novel Adaptive Droop Control (ADC) strategy is implemented for Grid Side Voltage Source Converters (GS-VSC) of Multi-terminal HVDC (MTDC) grids. The proposed method regulated the dc voltage by sharing appropriate power between the converter stations. During any converter outage or power imbalances, the proposed ADC ensures that the rest of converters are not burdened or operated beyond the converter ratings. The proposed ADC operate effectively without any communication between the converters. The evaluation of proposed control ADC is done by creating contingencies like converter outage, fault on the AC and DC side of the grid. The proposed method shows improved performance as compared with the conventional Voltage Droop Control (VDC). The CIGRE B4 working group DC grid benchmark test system is used to show the outperform of proposed ADC scheme in comparison with conventional VDC.
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