Abstract

Power electronics based zonal DC power distribution systems are being considered for sea and undersea vehicles. the stability of the DC power electronics-based power distribution systems is a significant design consideration because of the potential for negative impedance induced instabilities. in this paper, dynamic properties and control of a buck converter feeding a downstream DC-DC converter are studied. the controller in this system combines an instantaneous current feedback loop using hysteresis with a proportional-integral algorithm to regulate the output voltage of the converter. based on a large-signal averaged model of the converter, the stability-in-large around the operation point is presented. the complete analysis is carried out considering a buck DC-DC converter operating with a constant power load. Simulations and experimental results are provided to verify the analysis.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Buck converter; Constant power loads; Control; DC-DC converters; Modeling and analysis; Sea and undersea vehicles

International Standard Serial Number (ISSN)

0197-2618

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

01 Dec 2004

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