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Low Frequency Oscillations Induced by Virtual Synchronous Controlled DFIG-Based Wind Turbines

Published: 21 April 2022 Publication History

Abstract

The decline of system inertia caused by the integration of wind turbines (WTs) greatly threatens the frequency stability of power system. Virtual synchronous controlled (VSynC) wind turbines are thought to be one of the solutions of this problem because they can provide inertia to power system. Existing literature focuses on the impact of VSynC WTs on conventional synchronous generators (SGs), but the electromechanical oscillation caused by VSynC DFIG-Based WTs are rarely studied. In this paper, low frequency oscillation induced by VSynC DFIG-Based WTs is confirmed to exist. Then, a linearized model of VSynC DFIG-Based WTs is derived. The impact mechanism of operation areas and control parameters on low frequency oscillations is studied through the open-loop transfer function of a simple system with VSynC DFIG-based WT integrated. Finally, the analysis results are verified through time-domain simulation.

References

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Joyce Lee, Feng Zhao. 2021. Global Wind Report 2021. https://gwec.net/global-wind-report-2021/
[2]
W. He, X. Yuan, J. Hu. 2017. Inertia provision and estimation of PLL-based DFIG wind turbines. IEEE Trans on Power Systems. IEEE 32, 1 (January 2017), 510-521. https://doi.org/ 10.1109/TPWRS.2016.2556721
[3]
H. Beck and R. Hesse. 2007. Virtual synchronous machine. 2007 9th International Conference on Electrical Power Quality and Utilisation. IEEE, Barcelona, Spain, 1-6. https://doi.org/10.1109/EPQU.2007.4424220
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S. Wang, J. Hu, X. Yuan. 2015. Virtual Synchronous Control for Grid-Connected DFIG-Based Wind Turbines. IEEE Journal of Emerging and Selected Topics in Power Electronics. IEEE 3, 4 (December 2015), 932-944. https://doi.org/10.1109/TPWRS.2016.2556721
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Q. Fu, W. Du, H. Wang. 2018. Influence of Multi Virtual Synchronous Generators on Power System Electromechanical Oscillation Mode. Proceedings of the CSEE. 38, 19. (October 2018), 5615-5624+5919. https://doi.org/10.13334/j.0258-8013.pcsee.172371
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Y. Chi, Y. Lei, X. ji, J. Liu, W. He and X. Zhang. 2021. Analysis of Impact of DFIG-based Wind Turbines with Virtual Synchronous Control on the Action Path and Low Frequency Oscillation of Synchronous Generator. Modern Electric Power. 38, 3 (June 2021), 1-13. https://doi.org/ 10.19725/j.cnki.1007-2322.2020.0260
[7]
X. Zhang, W. He and J. Hu. 2020. Impact of Inertia Control of DFIG-Based WT on Torsional Vibration in Drivetrain. IEEE Transactions on Sustainable Energy. IEEE 11, 4 (October 2020), https://doi.org/10.1109/TSTE.2020.2964837
[8]
Y. Lei, W. He, M. Liao, B. Zang, J. Hu and Y. Chi. 2019. Inertia Characteristics Analysis of DFIG-Based Wind Turbines with Virtual Synchronous Control in Different Operation Areas. 2019 IEEE Sustainable Power and Energy Conference (iSPEC). IEEE, Beijing, China, 2238-2244, https://doi.org/10.1109/iSPEC48194.2019.8975015

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cover image ACM Other conferences
EEET 2021: 2021 4th International Conference on Electronics and Electrical Engineering Technology
December 2021
290 pages
ISBN:9781450385169
DOI:10.1145/3508297
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

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Published: 21 April 2022

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Author Tags

  1. DFIG-based WT
  2. Low frequency oscillation
  3. Small signal analysis
  4. Virtual synchronous control

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