Title

Modeling Closed-Loop Input and Output Impedances of DC-DC Power Converters Operating inside DC Distribution Systems

Abstract

This paper derives closed-loop input and output impedances of a number of dc-dc power electronic converters when operating in a dc distribution network. The derived impedances can be used for stability analysis and control design for dc distribution networks. In this paper, first the small-signal model of a power converter operating in a dc power system is introduced and the open-loop transfer functions are derived. Next, the closed-loop model of the converter is assembled based on the open-loop model and the type of the control scheme. Then, the closed-loop impedances are derived from the resulting closed-loop model. Finally, the derived impedances are verified using an experimental prototype converter.

Meeting Name

29th Annual IEEE Applied Power Electronics Conference and Exposition (2014: Mar. 16-20, Fort Worth, TX)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Transfer Functions; Mathematical Model; Stability Analysis; Power System Stability; Impedance; Voltage Control; Load Modeling; Closed Loop Systems; DC-DC Power Convertors; Distribution Networks; Electric Impedance

International Standard Book Number (ISBN)

9781479923250

International Standard Serial Number (ISSN)

1048-2334

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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