Title

Dynamic Analysis Of Three-Port Dc/Dc Converter For Space Applications

Abstract

This paper presents the control structure for a novel three-port converter topology. This topology has the advantage of low switch count, high power density, high efficiency, so it is a valuable choice for space applications. The three port converter for space application interfaces one solar panel input port, one bi-directional battery port and an isolated output port. Lithium-Ion battery charge control simulation is implemented. Maximum Power Point Tracking (MPPT) is adopted to maximize the solar energy input. Two of the three ports can be simultaneously regulated. However, the two control loops have interactions with each other due to the integrated power trains of the three ports. Therefore, implementing the closed loop control requires careful analysis of their dynamic behaviors. In this paper, the dynamic behavior of the converter during different operational modes is fully characterized and studied. Small signal models are derived based on state space equations, and experimental results verify the converter control structure. © 2009 IEEE.

Publication Date

6-1-2009

Publication Title

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Number of Pages

28-34

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/APEC.2009.4802628

Socpus ID

65949104302 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/65949104302

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