August 9, 2011
ECE Ph.D. student Sanja Cvijic won second prize for Best Paper and Presentation at the North American Power Symposium (NAPS2011) in Boston earlier this month. The paper, co-authored with thesis advisor and ECE and EPP Professor Marija Ilic, is entitled "On Limits to Graph - Theoretic Approaches in Electric Power Systems," and concerns fundamental differences between transportation and electric circuit networks that make it difficult to directly draw on the rich literature in operations research. The paper proposes a sequence of unique transformations that map a physical meshed network into a non-physical, tree-structured network. Optimization is accomplished using well-established methods for transportation networks in this nonphysical network, and the results are uniquely mapped back to the physical network.
The method outlined in the paper stems from the diakoptics method originated by Gabriel Kron and further developed by Harvey Happ for applications to electric power system decomposition. Cvijic's paper demystifies the complexity of these methods and introduces mappings that can be automated for systematic optimization.
Cvijic is spending her second summer with IBM, and was selected as an IBM Fellow for the 2011-2012 academic year.
Ph.D. student Sanja Cvijic won second prize for Best Paper and Presentation at the North American Power Symposium in Boston earlier this month.