Renewable Energy

Comparison, Pros & Cons

  • The DC grid provides a direct interface for renewable energy integration.
  • Replacing the inverter with a DC/DC converter for PV panels coupling to the DC microgrid is accompanied by an increase in conversion efficiency.
  • A reduced need of components needed for PV and wind energy integration contributes to cutting costs for the overall system.
  • The single control objective of the converters is the DC grid voltage regulation instead of voltage, frequency regulation and phase synchronisation in the AC grid which adds to the simplicity of the control and feedback design.
  • Enables low conversion losses therefore higher energy efficiency is achieved.
  • The system’s overall design complexity is fairly reduced.
  • Cable cost is approximately cut down by about two-fifths compared to AC grid.