A Droop Control Design Method in DC Microgrids

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CIRED 2018 Ljubljana WS - 0225 - 21111.pdf (340.15 KB)

Paper number

0225

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Conference name

CIRED 2018 Ljubljana Workshop

Conference date

7 - 8 June 2018

Conference location

Ljubljana, Slovenia

Peer-reviewed

Yes

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Convener

Authors

Lee, Gi-Young, Hanyang University, The Republic Of Korea
Ko, Byoung-Sun, Hanyang University, The Republic Of Korea
Kim, Rae-Young, Hanyang University, The Republic Of Korea
Kim, Seok-Woong, KEPCO Research Institute, The Republic Of Korea
Cho, Jintae, KEPCO Research Institute, The Republic Of Korea
Kim, Juyong, KEPCO Research Institute, The Republic Of Korea

Abstract

The analysis and design of the droop control applied to the bi-directional distributed generator in the dc microgrid are presented. The effects of line resistance on power sharing and voltage regulation performance are analysed. In order to interpret the complicated line configuration, the voltage sensitivity analysis based on the power flow analysis is derived. Based on this analysis, a droop control design method is proposed to improve the droop control performance. The design method is implemented through an PSCAD/EMTDC simulation. In a simulation model of dc microgrid, three bidirectional distributed generators, three loads, and one non-dispatchable distributed generators are connected to the 5-bus network model, and the improved performance are verified.

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Keywords

Publisher

AIM

Date

2018-06-07

Published in

CIRED 2018 Ljubljana Workshop on Microgrids and Local Energy Communities

Permanent link to this record

https://www.cired-repository.org/handle/20.500.12455/1241
http://dx.doi.org/10.34890/394

ISSN

2032-9628

ISBN

978-2-9602415-1-8