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DC microgrids have gained attention due to their flexibility, reliability, and energy efficiency. In this paper, a supercapacitor and a battery storage system are integrated with a DC microgrid to provide a backup power supply during grid outage and to regulate the voltage and frequency of the microgrid. A control strategy is developed to manage the power flow between the supercapacitor and the microgrid. The proposed control strategy uses a DC-DC converter to regulate the charging and discharging of the supercapacitor, and a bidirectional inverter to control the power flow between the supercapacitor and the microgrid. Simulation results show that the proposed control strategy can maintain the voltage and frequency of the microgrid within the acceptable limits and provide a fast response to grid disturbances.

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Control of Supercapacitor-Based Energy Storage System of DC Microgrid Using PI Controller

  • 会议论文

  • 发表日期：

    2025年

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  • Mullapati Dharani,
  • Sathans

摘要

DC microgrids have gained attention due to their flexibility, reliability, and energy efficiency. In this paper, a supercapacitor and a battery storage system are integrated with a DC microgrid to provide a backup power supply during grid outage and to regulate the voltage and frequency of the microgrid. A control strategy is developed to manage the power flow between the supercapacitor and the microgrid. The proposed control strategy uses a DC-DC converter to regulate the charging and discharging of the supercapacitor, and a bidirectional inverter to control the power flow between the supercapacitor and the microgrid. Simulation results show that the proposed control strategy can maintain the voltage and frequency of the microgrid within the acceptable limits and provide a fast response to grid disturbances.