Stability Analysis of Islanded Microgrid Based on Constant Power Load

Yinghui Li*, Zhiwen Zhong, Xingbiao Rong, Peng Huang, Xiaohuan Wang, Zhe Zhang

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    In the context of energy crisis and environmental pollution, microgrid technology is developing rapidly. Various micro-sources and load mixtures coexist in the microgrid, and their interaction will lead to the instability of the microgrid. Taking the study of constant power load as the starting point, the impedance model of inverter and constant power load is established. The stability of the microgrid with constant power load in the island mode is analyzed from the impedance level. The mechanism of constant power load causing low-frequency oscillation of microgrid is revealed. Finally, simulation and experiments verify the correctness of the proposed theory.

    Original languageEnglish
    Title of host publicationProceedings of 4th International Conference on Smart Power and Internet Energy Systems
    PublisherIEEE
    Publication date2022
    Pages1380-1385
    ISBN (Electronic)9781665489577
    DOIs
    Publication statusPublished - 2022
    Event4th International Conference on Smart Power and Internet Energy Systems - Beijing, China
    Duration: 9 Dec 202212 Dec 2022

    Conference

    Conference4th International Conference on Smart Power and Internet Energy Systems
    Country/TerritoryChina
    CityBeijing
    Period09/12/202212/12/2022

    Keywords

    • Impedance modeling
    • Low-frequency oscillation (LFO)
    • Microgrid islanded operation
    • Stability

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