Publication Detail

Stochastic Sensitivity Methods and Application to the Shipboard Power System

Pradya Prempraneerach, Franz Hover, Michael Triantafyllou
12 pp.
MITSG 07-15J
$5.50 DOM / $7.50 INT

In large-scale dynamic systems, including power systems, sensitivity analysis can provide a powerful tool in ranking the importance of random input channels and quantifying their interactions. In this work, we propose new methods for stochastic sensitivity analysis and compare them against the Morris method for stationary and time-dependent problems. We then apply the most efficient of these methods (a combination of Quasi-Monte Carlo and Morris methods) to a subsystem of an all-electric ship model with multi-rate dynamics, consisting of an AC power distribution with an open-loop propulsion system. In a startup transient, we identify the most important parameters in the short-time regime, where the electrical components dominate, and in the long-term regime where the mechanical components dominate.

type: Journal, book, proceeding reprints

Parent Project

Project No.: 2008-ESRDC-01-LEV
Title: Electric Ship Research and Development Consortium (ESRDC)

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