Robust Sliding Mode Control of A Three-Phase Grid-Forming Inverter in Non-Ideal Grid Conditions and Isolated Mode of Operation

Sara Yazdani, Mehdi Ferdowsi, Masoud Davari, Pourya Shamsi

Research output: Contribution to book or proceedingConference articlepeer-review

2 Scopus citations

Abstract

Grid forming inverters controlled as a virtual synchronous generator can improve the dynamic response of autonomous microgrids. However, the capability of operating in weak grid conditions and isolated mode of operation along with maintaining the voltage at the point of common coupling embodies multiple nonlinear dynamics which can be tackled by a control structure as a discontinuous state function known as sliding mode control. In this paper, a swing equation-based control architecture augmented with a nonlinear sliding mode control has been adopted to design a robust control for a three-phase grid-forming inverter. The proposed control structure can furnish non-oscillatory power to the load during unbalanced grid conditions. This system can operate in isolated mode and sustain the nonlinearities, which can arise due to changes in plant parameters. The performance of the proposed controller is verified through Hardware-in-the-Loop cosimulation results, which confirms the enhanced robustness of such a system.

Original languageEnglish
Title of host publicationAPEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3087-3091
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
Period03/15/2003/19/20

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