Design of An Adaptive Droop Control System for DC Microgrids Considering the Intermittent Behavior of DGs

Articles in Press

Document Type : Research Paper

Authors

Shahid Chamran University of Ahvaz

Abstract

To overcome the weaknesses of classic droop control, in this paper, an adaptive droop control system is presented for DC microgrids. In this method, the DC microgrid is equipped with a centralized control unit which includes an adaptive droop control algorithm for modifying the drop control coefficients and sending them to the de-centralized control units of the DGs converters. The droop coefficients are calculated based on the proposed process to not only satisfy the load-generation balance in the study microgrid but also minimize the grid losses, voltage deviations, and differences in DGs' loading. The method, moreover, covers the effects of cable resistances on the accuracy of the droop control and can be implemented in multi-terminal microgrids. To provide a more accurate evaluation than simulation-based tests, the proposed method was tested on a hardware-in-the-loop (HIL) structure in which the proposed algorithm is implemented on a microprocessor and connected to the simulated study system.

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Main Subjects

Journal of Modeling in Engineering

Articles in Press, Accepted Manuscript
Available Online from 14 September 2025

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History

  • Receive Date: 15 May 2024
  • Revise Date: 30 April 2025
  • Accept Date: 17 May 2025

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