A Novel Decentralized Adaptive Droop Control Technique for DC Microgrids Based on Integrated Load Condition Processing

A novel decentralized adaptive droop control method for DC Microgrids to enhance the current sharing performance and provide superior DC Bus voltage regulation is proposed in this paper. The proposed algorithm provides a two-fold contribution beyond the existing state of the art methods. First, it introduces a complete decentralized bus voltage control method based on local measurements without relying on any communication link. Second, it adaptively changes the droop coefficient value, unlike the conventional constant droop parameters, by considering the system loading condition based on maximum-minimum load data requiring no droop coefficient optimization, central controller or nonlinear droop equations. Simulation and experimental results are provided as a proof of concept of the proposed method.