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Control Strategies and Stabilization Techniques for DC/DC Converters Application in DC MGs: Challenges, Opportunities, and Prospects—A Review

Published version
Peer-reviewed

Repository DOI


Change log

Authors

Lestas, I 
Gunawardane, K 

Abstract

jats:pDC microgrids (DC MGs) offer advantages such as efficiency, control, cost, reliability, and size compared to AC MGs. However, they often operate with numerous constant power loads (CPLs), exhibiting a negative incremental impedance characteristic that can lead to instability. This instability weakens stability boundaries and reduces system damping, especially when dealing with pulsed power loads (PPLs) on electric aircraft, ships, and cars. Linear controllers may not ensure stability across various operations, causing voltage dips and potential system instability. To secure DC/DC converter functionality and comply with impedance specifications, it is crucial to consider minor loop gain in control strategies and stabilization techniques. Employing diverse methods to decrease minor loop gain in DC/DC converters is essential. A comprehensive evaluation, including strengths, weaknesses, opportunities, and threats (SWOT) analysis, is conducted to assess control strategies, stabilization techniques, and stability standards for different DC/DC converters, identifying SWOT.</jats:p>

Description

Peer reviewed: True


Acknowledgements: The authors would like to acknowledge the MBIE SSIF ATP project entitled ‘Architecture of the Future Low-Carbon, Resilient, Electrical Power System’ for their financial support.


Publication status: Published

Keywords

40 Engineering, 4008 Electrical Engineering, 4009 Electronics, Sensors and Digital Hardware, 7 Affordable and Clean Energy

Journal Title

Energies

Conference Name

Journal ISSN

1996-1073
1996-1073

Volume Title

17

Publisher

MDPI AG
Sponsorship
New Zealand Ministry of Business, Innovation and Enterprise (MBIE) SSIF ATF (AUT-R12216.01)