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Impact of Virtual Synchronous Machines on Low-Frequency Oscillations in Power Systems

Mufatu Olatunji Baruwa, Meghdad Fazeli Orcid Logo

IEEE Transactions on Power Systems, Volume: 36, Issue: 3, Pages: 1934 - 1946

Swansea University Authors: Mufatu Olatunji Baruwa, Meghdad Fazeli Orcid Logo

Abstract

The low-frequency oscillations (LFOs) inherent inpower systems will be impacted by the increasing penetrationof renewable energy sources (RESs). This paper investigates theimpact of virtual synchronous machine (VSM) based RESs on theLFOs in power systems. A detailed two-machine test-bed has beendeve...

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Published in: IEEE Transactions on Power Systems
ISSN: 0885-8950 1558-0679
Published: Institute of Electrical and Electronics Engineers (IEEE) 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa55336
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Abstract: The low-frequency oscillations (LFOs) inherent inpower systems will be impacted by the increasing penetrationof renewable energy sources (RESs). This paper investigates theimpact of virtual synchronous machine (VSM) based RESs on theLFOs in power systems. A detailed two-machine test-bed has beendeveloped to analyze the LFOs which exists when VSMs replacesynchronous generators. The characteristics of the LFO modesand the dominant states have been comprehensively analyzed.Furthermore, this study analyzes the LFO modes which existsin an all-VSM grid. The role of the power system stabilizers inthe all-VSM grid has been comprehensively evaluated. The IEEEbenchmark two-area four-machine system has been employed tocorroborate the results of the small-signal analysis and observethe transient performance. The analysis in this paper have beenperformed in MATLAB/SIMULINK environment.
College: Faculty of Science and Engineering
Issue: 3
Start Page: 1934
End Page: 1946