Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published November 2017 | metadata_only
Journal Article

Optimal Placement of Energy Storage in Distribution Networks


We study the problem of optimal placement and capacity of energy storage devices in a distribution network to minimize total energy loss. A continuous tree with linearized DistFlow model is developed to model the distribution network. We analyze structural properties of the optimal solution when all loads have the same shape. We prove that it is optimal to place storage devices near the leaves of the network away from the substation, and that the scaled storage capacity monotonically increases towards the leaves. Moreover, under optimal storage placement, the locational marginal value of storage is equalized wherever nonzero storage is deployed and increases from the substation towards any leaf node over places where there is zero storage deployment. We illustrate through simulations that these structural properties are robust in that they hold approximately when some of our modeling assumptions are relaxed.

Additional Information

© 2017 IEEE. Manuscript received November 1, 2016; revised March 11, 2017; accepted May 19, 2017. Date of publication June 5, 2017; date of current version October 19, 2017. This work was supported in part by the NSF under Grant CCF 1637598, Grant ECCS 1619352, and Grant CNS 1545096, in part by the ARPA-E under Grant DE-AR0000699, and in part by the DTRA under Grant HDTRA 1-15-1-0003. Paper no. TSG-01522-2016. (Corresponding author: Yujie Tang.)

Additional details

August 19, 2023
August 19, 2023