Abstract:
This study presents a novel adaptive droop control (ADC) strategy for power-sharing in a multi-terminal high-voltage
DC grid while maintaining a desirable DC voltage level. The ADC scheme can share the power without burdening any power
converters during one or more converter outages and huge power imbalance situations. To improve the effectiveness of the
power sharing and DC voltage deviation control, the ADC is also implemented for wind farm converters. This is achieved
through a derated mode operation of wind farms. The performance and effectiveness of the proposed control approach are
evaluated in several case studies based on the specific type of converter outage under the various outage scenarios. The
proposed method is validated on a five-terminal CIGRE B4 DC grid test system
