An Economic Analysis of Potential Cost Savings from the Use of Low Voltage DC (LVDC) Distribution Network

  • Hur, Don ;
  • Baldick, Ross
  • Received : 2013.10.19
  • Accepted : 2013.11.29
  • Published : 2014.05.01


The proposed technical work attempts to compare the two key technologies of power distribution, i.e. direct current (DC) and alternating current (AC) in a fiscal manner. The DC versus AC debate has been around since the earliest days of electric power. Here, at least four types of a low voltage DC (LVDC) distribution are examined as an alternative to the existing medium voltage AC (MVAC) distribution with an economic assessment technique for a project investment. Besides, the sensitivity analysis will be incorporated in the overall economic analysis model to cover uncertainties of the input data. A detailed feasibility study indicates that many of the common benefits claimed for an LVDC distribution will continue to grow more profoundly as it is foreseen to arise with the increased integration of renewable energy sources and the proliferation of energy storage associated with the enhanced utilization of uninterruptible power supply (UPS) systems.


Cost minimization;Discounted Cash Flow (DCF);Low voltage DC (LVDC) distribution;Medium voltage AC (MVAC) distribution;Net present value (NPV);Sensitivity analysis


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