Stability Enhancement Method for DC Microgrids with Constant Power Loads using Variable Inductor

Bhanu Babaiahgari, Yeonho Jeong, Jae Do Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

DC microgrid systems are often prone to stability issues due to the negative incremental resistance exhibited by constant power loads (CPLs). In order to estimate the overall stability of the system with CPLs, a simplified small-signal model is derived and solved using Lyapunov's stability criterion. Considering the impact of converter inductance on system stability, a variable inductor-based stabilizer is proposed in order to enhance the stability margin of DC microgrids and guarantee stable operation. The proposed method is validated by a laboratory-scale experimental setup, and the results verify the effectiveness of the proposed method.

Original languageEnglish (US)
Title of host publicationAPEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2236-2240
Number of pages5
ISBN (Electronic)9781728148298
DOIs
StatePublished - Mar 2020
Event35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, United States
Duration: Mar 15 2020Mar 19 2020

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2020-March

Conference

Conference35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
Country/TerritoryUnited States
CityNew Orleans
Period3/15/203/19/20

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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