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Project: T144700 #50/124
 

Distributed generation (DG) presents a number of challenges to distribution system planning and operations because the dispersed connection of generation sources to the distribution system disrupt the traditional paradigm in which the substation is the sole source of power and short-circuit capacity. Furthermore, much of the DG presently being installed is renewable, and thus inherently variable, adding further complexities to distribution system integration. At the same time, DG, in particular solar Photovoltaic (PV) due to its recent popularity and large-scale deployment in many distribution systems, offers opportunities for utilities that, if leveraged, can help optimize grid performance. Many of these challenges and opportunities have been analyzed extensively in previous research studies. However, extracting the actionable items from the wealth of information available from these studies is an entirely different challenge that utilities are currently facing. Furthermore, a critical evaluation of the findings from previous research is advisable to determine the accuracy of the study results and practicability of the recommendations. The objectives of this project are to (1) report on previous DG-related research studies, (2) extract useful conclusions from these studies and discuss their limitations, and (3) perform a gap analysis to highlight DG-caused problems and opportunities that have not yet been addressed in previous studies, or that have been addressed but not in sufficient detail.

Keywords:

Distributed Generation, Photovoltaic, Distribution Systems, Gap Analysis