Abstract
In this article, a novel damping control scheme for V/I droop-controlled direct current (dc) microgrids is proposed to attenuate the oscillatory components in the power and current. At first, the model of the dc microgrid is introduced providing stability analysis. Then, the damping controller is designed using the interconnection and damping assignment passivity-based control (IDA-PBC) methodology. In addition, the gain selection technique for the IDA-PBC is developed. The proposed control scheme ensures that the oscillations of the output power and current are effectively attenuated. The validity of the proposed control algorithm has been verified by the results from both hardware-in-the-loop simulation and proto-type experiments.
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