Optimal placement of energy storage in the grid
This paper studies the problem of optimally placing large-scale energy storage in power grids with both conventional and wind generation. The solution technique for this infinite horizon problem assumes cyclic demand and generation profiles using a semidefinite relaxation of AC optimal power flow. Changes in storage allocation in the network are studied as a function of total storage budget and transmission line-flow constraints. These questions are investigated using an IEEE benchmark system with various generation portfolios.
© 2012 IEEE. This work was partially funded by Southern California Edison, the NSF (CNS 0911041), ARPA-E (DE-AR0000226) and the National Science Council of Taiwan, R.O.C. (NSC 101-3113-P-008-001). The authors gratefully acknowledge G. Rodriguez, C. Clarke, and P. DeMartini for their helpful suggestions.