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The technical objectives of this project were to perform shipboard power system performance metric refinements, early-stage assessment computational tool investigation, and the application of these to NGIPS alternative architectures and technologies. Progress towards metric-based optimization approaches to early-stage design exploration is described. The establishment of a notional medium-voltage dc system for use in system studies is discussed. The development of early-stage modeling techniques is described. The results of studies focused on the energy storage sizing and location are included. Finally, an approach for early-stage modeling of power system protection schemes is included.

In early-stage design exploration, it has been found that electrical dynamics do not significantly affect the dependability of an integrated engineering plant. Therefore, it has been found useful to neglect these electrical dynamics and focus on mechanical, thermal, and fluidic dynamics in assessing system performance. Previous methods of accomplishing this goal involve the use of linear programming to describe the behavior of the electrical system. Herein, two significant shortcomings of the existing linear programming methods are identified, and a method of representing the electrical system that addresses these shortcomings is proposed. The proposed method is demonstrated in several system studies., See also ADA581781. Presented at IEEE Electric Ship Technologies Symposium (IEEE ESTS 2013) Held in Arlington, Virginia on April 22-24, 2013. U.S. Government or Federal Purpose Rights License.