Skip to content
2000
Volume 18, Issue 10
  • ISSN: 2352-0965
  • E-ISSN: 2352-0973

Abstract

Background

With the direct-drive wind turbine connected to the weak grid, subsynchronous oscillation (SSO) problems occur frequently. The use of traditional control strategies to inhibit it has a poor effect and will seriously threaten the stability of system operation.

Methods

This paper initially analyzes the factors that give rise to subsynchronous oscillation (SSO) based on the established sequential impedance model for direct-drive wind power grid connection. Through impedance sensitivity analysis of the control parameters, it is found that the proportional gain of the current loop and that of the phase-locked loop are the dominant factors generating the risk of SSO. Secondly, considering that Linear Active Disturbance Rejection Control (LADRC) has a faster response speed and stronger anti-disturbance ability compared with the traditional Proportional Integral (PI) control, this paper replaces the phase-locked loop and current-loop PI control with the self-resistant controller. The second-order extended state observer is employed to perform real-time estimation and compensation of system perturbations.

Results

After performing simulation and frequency domain analysis on the MATLAB/Simulink platform, it is found that compared with traditional PI control and voltage feedforward control strategies, the direct-drive wind power grid-connected system using LADRC control can effectively suppress oscillations under different weak grids and possess better robustness.

Conclusion

The direct-drive wind power grid-connected system equipped with LADRC control can effectively suppress oscillations under different weak grid conditions and shows good robustness.

© 2025 Bentham Science Publishers
Loading

Article metrics loading...

/content/journals/raeeng/10.2174/0123520965333575241024063350
2025-01-06
2026-01-01

  • From This Site

    /content/journals/raeeng/10.2174/0123520965333575241024063350
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. MaN. Review of wide-band oscillation in renewable and power electronics highly integrated power systems.Zhongguo Dianji Gongcheng Xuebao2020401547204732
     [Google Scholar]
  2. XieX. New issues and classification of power system stability with high shares of renewables and power electronics.Zhongguo Dianji Gongcheng Xuebao2021412461475
     [Google Scholar]
  3. ZhangT. A mechanism investigation on SSTOs in power systems without series compensated lines induced by PMSG wind farms under the condition of weak grid connection.Zhongguo Dianji Gongcheng Xuebao2020401858755885
     [Google Scholar]
  4. ChenX. Overview of stability research for grid-connected inverters based on impedance analysis method.Zhongguo Dianji Gongcheng Xuebao201838720822094
     [Google Scholar]
  5. HengN. Frequency coupling characteristic modeling of grid-connected inverter and system stability analysis.Resources Environment & Engineering201920191421
     [Google Scholar]
  6. ShaoB. ZhaoS. YangY. GaoB. BlaabjergF. Sub-synchronous oscillation characteristics and analysis of direct-drive wind farms with VSC-HVDC systems.IEEE Trans. Sustain. Energy20211221127114010.1109/TSTE.2020.3035203
     [Google Scholar]
  7. WangY. WangL. JiangQ. STATCOM based supplementary damping mitigation strategy for subsynchronous control interaction in wind farms.Dianli Xitong Zidonghua201943154955
     [Google Scholar]
  8. ZhouP. Subsynchronous oscillation mitigation method for wind turbines based on additional proportional resonance control.Zhongguo Dianji Gongcheng Xuebao20214111
     [Google Scholar]
  9. ChenJ. TengQ. MaX. Research on control of LCL grid connected inverter based on Active Disturbance Rejection Control Strategy2021 China Automation Congress (CAC)Beijing, China20214432443710.1109/CAC53003.2021.9727777
     [Google Scholar]
  10. WeizhengC. Subsynchronous Oscillation Mitigation Strategy Based on First-Order LADRC for Direct-Drive Wind Turbines.Electric Power.2022554175184
     [Google Scholar]
  11. LiuB. LiZ. DongX. YuS.S. ChenX. OoA.M.T. LianX. ShanZ. LiuX. Impedance modeling and controllers shaping effect analysis of PMSG wind turbines.IEEE J. Emerg. Sel. Top. Power Electron.2021921465147810.1109/JESTPE.2020.3014412
     [Google Scholar]
  12. ZhangC. CaiX. MolinasM. RyggA. On the impedance modeling and equivalence of AC/DC-side stability analysis of a grid-tied type-IV wind turbine system.IEEE Trans. Energ. Convers.20193421000100910.1109/TEC.2018.2866639
     [Google Scholar]
  13. WuW. Research on wide-bandwidth oscillation mechanism and suppression methods of renewable energy power generation connected to the weak grid.Hunan University, Changsha2019
     [Google Scholar]
  14. XiaoS. XuL. Analysis of key factors and suppression measures for sub-synchronous oscillation of direct-drive PMSG based on frequency coupled impedance.Power Syst. Technol2022114
     [Google Scholar]
  15. ZhangF. ChenX.K. Research on parameter tuning of econd-order LADRC for VSC-HVDC converter station.Power System Technology2018421137443755
     [Google Scholar]
  16. JingF. ZhenM. Research on Hybrid Odd-order Nonlinear Droop Control for DC Microgrids Based on ADRC.High Voltage Engineering2020460722962306
     [Google Scholar]
  17. CaiY. HeY. ZhouH. LiuJ. Active-damping disturbance-rejection control strategy of LCL grid-connected inverter based on inverter-side-current feedback.IEEE J. Emerg. Sel. Top. Power Electron.2021967183719810.1109/JESTPE.2020.3017678
     [Google Scholar]
  18. SuY. GeX. XieD. WangK. An active disturbance rejection control-based voltage control strategy of single-phase cascaded H-bridge rectifiers.IEEE Trans. Ind. Appl.20205655182519310.1109/TIA.2020.3004316
     [Google Scholar]
  19. ADRC-based current control for grid-tied inverters: Design, analysis, and verification.IEEE Transactions on Industrial Electronics201984288437
     [Google Scholar]
  20. MaY. SunX. ZhouX. Research on D-STATCOM double closed-loop control method based on improved first-order linear active disturbance rejection technology.Energies20201315395810.3390/en13153958
     [Google Scholar]
/content/journals/raeeng/10.2174/0123520965333575241024063350
Loading
Stability Analysis of Direct-drive Wind Turbines Connected To Weak Grid Using Linear Immunity Impedance Modeling
Recent Advances in Electrical & Electronic Engineering 18, 1922 (2025); https://doi.org/10.2174/0123520965333575241024063350
/content/journals/raeeng/10.2174/0123520965333575241024063350
/content/journals/raeeng/10.2174/0123520965333575241024063350
Loading

Data & Media loading...


  • Article Type:     Research Article
Keyword(s): direct drive; LADRC; permanent magnet; sensitivity analysis; sequential impedance model; SSO; synchronous generator; Weak Grid

Most Cited Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error
Please enter a valid_number test