Assessment of Impact of Modeling Simplifications for a Medium Voltage DC Shipboard Power System

Dorca Lee, James Langston, Svetlana Poroseva, Diomar Infante, Michael Steurer, Thomas Baldwin
2010 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 18th AIAA/ASME/AHS Adaptive Structures Conference 12th   unpublished
In the paper, the response surface modeling approach is applied to study the effectiveness of different grounding schemes implemented for mitigation of single-line-to-ground faults in a simulation of a notional Medium Voltage DC shipboard power system. Multivariate adaptive regression splines (MARS) models are used for preliminary exploration of the functional relationships between the input parameters and response variables. Using the constructed MARS models, Sobol' total sensitivity indices
more » ... re computed for the models to study possible differences in the sensitivities of the response variables for the different grounding schemes. For final analyses, and for response surface models for which the MARS models show significant prediction error, Gaussian process models are used to account for prediction variance. Nomenclature V mid = Zero potential at the midpoint between two high-impedance elements V n = Voltage at the generator neutral point V dc = DC bus line-to-line voltage 1
doi:10.2514/6.2010-3013 fatcat:brmav7xnpnegrpb5nlabpflk3a