A fully autonomous power management strategy for DC microgrid bus voltages

Author

Xunwei Yu ; Huang, A. ; Burgos, Rolando ; Jun Li ; Yu Du

Author_Institution

Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA

fYear

2013

fDate

17-21 March 2013

Firstpage

2876

Lastpage

2881

Abstract

A typical DC microgrid is investigated in this paper. Two unidirectional DC/DC converters for photovoltaic (PV), and two bidirectional DC/DC converters for batteries are included in the proposed DC microgrid system embodying multiple renewable energy sources and energy storage devices. In order to manage the system operation, a fully autonomous power management strategy, namely adaptive DC bus voltage signal, is proposed. In the proposed control algorithm, the DC microgrid system can operate in islanding mode, DC source-connection mode, featuring seamless transitions between these two modes. Experimental results verify that the proposed power management strategy can be applied to a DC microgrid stably and achieve good performance.

Keywords

maximum power point trackers; photovoltaic power systems; PV modules and strings; current-voltage characteristic; low complexity system; maximum power point; photovoltaic modules and strings; real-time determination;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE

Conference_Location

Long Beach, CA

ISSN

1048-2334

Print_ISBN

978-1-4673-4354-1

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2013.6520706

Filename

6520706