• Determining the Sufficiency of Standard Protective Relaying for Islanding Prevention in Grid-Connected PV Systems 

      Begović, Miroslav; Ropp, M. E.; Rohatgi, Ajeet; Pregelj, Aleksandar (Georgia Institute of Technology, 1998-07)
      Recently there has been a resurgence of concern about islanding of grid-connected photovoltaic (PV) systems. This condition occurs when the PV system continues to energize a section of the grid after that section has been ...
    • Estimation of PV System Reliability Parameters 

      Pregelj, Aleksandar; Begović, Miroslav; Rohatgi, Ajeet; Ristow, Alan (Georgia Institute of Technology, 2001-10)
      In evaluating the payback time and energy price per kWh generated by a renewable energy system, the system is usually assumed to work without interruptions over its entire life. Renewable energy systems are fairly reliable, ...
    • Impact of Inverter Configuration on PV System Reliability and Energy Production 

      Pregelj, Aleksandar; Begović, Miroslav; Rohatgi, Ajeet (Georgia Institute of Technology, 2002-05)
      The loss of potential revenues due to PV system failures should be taken into consideration when the system’s life cycle cost predictions are calculated. We demonstrate a procedure for quantifying the effects of inverter ...
    • Modeling the Effects of Uncertainty and Reliability on the Cost of Energy from PV Systems 

      Ristow, Alan; Begović, Miroslav; Rohatgi, Ajeet (Georgia Institute of Technology, 2005-06)
      The cost of energy produced by a photovoltaic system is dependent upon the amount of energy produced by the system and the amortized cost of the system's components. Existing simulation tools either use crude estimators ...