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Exploring Dynamic P-Q Capability and Abnormal Operations Associated with PMSG Wind Turbines

Author

Listed:
  • Shahinur Rahman

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35401, USA)

  • Shuhui Li

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35401, USA)

  • Himadry Shekhar Das

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35401, USA)

  • Xingang Fu

    (Department of Electrical Engineering and Computer Science, Texas A & M University, Kingsville, TX 78363, USA)

  • Hoyun Won

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35401, USA)

  • Yang-Ki Hong

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35401, USA)

Abstract

With the proliferation of large-scale grid-connected wind farms, subsynchronous oscillation (SSO) incidents associated with Type-4 wind turbines (WTs) with a permanent magnet synchronous generator (PMSG) have occurred frequently. These incidents have caused severe reliability risks to the power grid. Conventionally, P-Q capability charts are utilized to ensure the safety operating region of a synchronous generator. However, a PMSG WT exhibits completely different and dynamic P-Q capability characteristics due to the difference in energy conversion technique and several critical factors related to the WT power converters. This paper presents a comprehensive dynamic P-Q capability study of a PMSG WT with sufficient and accurate considerations of the WT control and operation in the dq reference frame, its power converter constraints, and grid dynamics. Models of a PMSG WT are first developed based on its control principle in the dq reference frame. Then, algorithms for obtaining the P-Q capability charts of the WT are developed with the considerations of complete WT constraints in different aspects. The study analyzes the root cause of many abnormal operations of grid-connected PMSG WTs, reported in the literature, from the dynamic P-Q capability perspectives. The proposed study is verified via an electromagnetic transient (EMT) model of a grid-connected Type-4 WT.

Suggested Citation

  • Shahinur Rahman & Shuhui Li & Himadry Shekhar Das & Xingang Fu & Hoyun Won & Yang-Ki Hong, 2023. "Exploring Dynamic P-Q Capability and Abnormal Operations Associated with PMSG Wind Turbines," Energies, MDPI, vol. 16(10), pages 1-21, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:10:p:4116-:d:1148005
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    References listed on IDEAS

    as
    1. Moumita Sarkar & Müfit Altin & Poul E. Sørensen & Anca D. Hansen, 2019. "Reactive Power Capability Model of Wind Power Plant Using Aggregated Wind Power Collection System," Energies, MDPI, vol. 12(9), pages 1-19, April.
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