Investigation on SSCI between PMSGs-based wind farm and AC network

Investigation on SSCI between PMSGs-based wind farm and AC network

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
IET Renewable Power Generation — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

The sub-synchronous control interaction (SSCI) has frequently occurred in the direct-drive permanent magnetic synchronous generators (PMSGs) based wind farm integrated to the weak AC network. The system strength, i.e. short-circuit ratio (SCR) has been believed as the critical factor so far. However, the impedance–frequency characteristics of the practical network exhibit a strong resonance that might have impacts on the SSCI as well. In this study, considering the network resonance, the eigenvalue- and impedance-based analyses are conducted to study the SSCI phenomenon in the grid-connected PMSG system. The impacts on SSCI from system strength, network resonance and network-resonant frequency are investigated firstly. Then, the parameter limits of PMSG control for the stable region are calculated to discuss the effects of network resonance on the parameter design. The results show that the network resonance plays a critical role in the SSO mode. When the network resonance is considered in the PMSG system, the SSO would arise more easily, and the stable region of the control parameter will be reduced. Meanwhile, the frequency of the SSO mode matches well with the network resonance frequency in dq frame. The analytical results are all verified by simulation.


    1. 1)
      • 1. Song, Y., Blaabjerg, F.: ‘Analysis of the behavior of undamped and unstable high-frequency resonance in a DFIG system’, IEEE Trans. Power Electron., 2017, 32, (12), pp. 91059116.
    2. 2)
      • 2. Song, Y., Blaabjerg, F.: ‘Analysis of middle frequency resonance in DFIG system considering phase-locked loop’, IEEE Trans. Power Electron., 2018, 33, (1), pp. 343356.
    3. 3)
      • 3. Ebrahimzadeh, E., Blaabjerg, F., Wang, X., et al: ‘Harmonic stability and resonance analysis in large PMSG-based wind power plants’, IEEE Trans. Sustain. Energy, 2018, 9, (1), pp. 1223.
    4. 4)
      • 4. Liu, H., Xie, X., He, J., et al: ‘Subsynchronous interaction between direct-drive PMSG based wind farms and weak AC networks’, IEEE Trans. Power Syst., 2017, 32, (6), pp. 47084720.
    5. 5)
      • 5. Shair, J., Xie, X., Wang, L., J, et al: ‘Overview of emerging subsynchronous oscillations in practical wind farm systems’, Renew. Sust. Energy Rev., 2019, 99, pp. 159168.
    6. 6)
      • 6. Gross, L.C..: ‘Sub-synchronous grid conditions: new event, new problem, and new solutions’. 37th Annual Western Protective Relay Conf., Spokane, USA, 2010, pp. 119.
    7. 7)
      • 7. Sahni, M., Badrzadeh, B., Muthumuni, D., et al: ‘Sub-synchronous interaction in wind power plants – part II: an ERCOT case study’. IEEE Power and Energy Society General Meeting, New York, USA, 2012, pp. 19.
    8. 8)
      • 8. Wang, L., Xie, X., Jiang, Q., et al: ‘Investigation of SSR in practical DFIG-based wind farms connected to a series-compensated power system’, IEEE Trans. Power Syst., 2015, 30, (5), pp. 27722779.
    9. 9)
      • 9. Li, Y., Liu, H., Ning, W., et al: ‘Impact on SSR of wind farms connected to series-compensated lines from the different structures of power grid’, J. Eng., 2017, 2017, (13), pp. 21582163.
    10. 10)
      • 10. Badrzadeh, B., Sahni, M., Zhou, Y., et al: ‘General methodology for analysis of sub-synchronous interaction in wind power plants’, IEEE Trans. Power Syst., 2013, 28, (2), pp. 18581869.
    11. 11)
      • 11. Liu, H., Xie, X., Liu, W.: ‘An oscillation stability criterion based on the unified dq-frame impedance network model for power systems with high penetration renewables’, IEEE Trans. Power Syst., 2018, 33, (3), pp. 34743485.
    12. 12)
      • 12. Du, W., Chen, X., Wang, H.: ‘SSOs caused by OLMOC in a power system with the PMSGs for wind power generation’, IET Renew. Power Gener., 2018, 12, (12), pp. 14051412.
    13. 13)
      • 13. Bi, T., Li, J., Zhang, P., et al: ‘Study on response characteristics of grid-side converter controller of PMSG to sub-synchronous frequency component’, IET Renew. Power Gener., 2017, 11, (7), pp. 966972.
    14. 14)
      • 14. Liu, W., Lu, Z., Wang, X., et al: ‘Frequency-coupled admittance modelling of grid-connected voltage source converters for the stability evaluation of subsynchronous interaction’, IET Renew. Power Gener., 2019, 13, (2), pp. 285295.
    15. 15)
      • 15. Liu, W., Xie, X., Liu, H., et al: ‘Mechanism and characteristic analyses of subsynchronous oscillations caused by the interactions between direct-drive wind turbines and weak AC power systems’, J. Eng., 2017, 2017, (13), pp. 16511656.
    16. 16)
      • 16. Gao, F., He, Q., Hao, Z., et al: ‘The research of sub synchronous oscillation in PMSG wind farm’. 2016 IEEE PES Asia-Pacific Power and Energy Conf., Xi'an, China, 2016, pp. 18831887.
    17. 17)
      • 17. Liu, Y., Wang, L., Sun, H., et al: ‘Characteristics of sub-synchronous interaction among D-PMSG-based wind turbines’, J. Eng., 2019, 2019, (16), pp. 14341438.
    18. 18)
      • 18. Huang, B., Sun, H., Liu, Y., et al: ‘Study on subsynchronous oscillation in D-PMSGs-based wind farm integrated to power system’, IET Renew. Power Gener., 2019, 13, (1), pp. 1626.
    19. 19)
      • 19. Song, R., Li, B., Li, B., et al: ‘Mechanism and characteristics of SSO in direct-drive wind power generation system based on input-admittance analysis’, Proc. CSEE, 2017, 37, (16), pp. 46624670 (in Chinese).
    20. 20)
      • 20. Mohan Mathur, R., Varma, R. K.: ‘Concepts of SVC voltage control’, in El-Hawary, M. E. (Ed.): ‘Thyristor-based facts controllers for controllers for electrical transmission system’ (IEEE Press, New York, NY, USA, 2002, 1st edn.), pp. 163167.
    21. 21)
      • 21. Gyugyi, L.: ‘Application of SVC for system dynamic performance’ (IEEE Special Publication, 1987, 87th 0187-5-PWR).
    22. 22)
      • 22. Chen, Y., Liu, Y., Sun, H., et al: ‘SSCI problem of D-PMSGs based wind farm considering frequency characteristics of grid impedance’. 2018 Int. Conf. on Power System Technology, Guangzhou, China, 2018, pp. 18261831.
    23. 23)
      • 23. Zhou, P., Xiang, Z., Du, N., et al: ‘Analysis on blocking of Qinghai-Tibet DC system caused by transformer energizing in northwest China 750 kV grid’, Autom. Electr. Power Syst., 2013, 37, (10), pp. 129133 (in Chinese).
    24. 24)
      • 24. Wang, X., Blaabjerg, F.: ‘Harmonic stability in power electronic based power system: concept, modeling, and analysis’, IEEE Trans. Smart Grid, 2019, 10, (3), pp. 28582870.
    25. 25)
      • 25. Amin, M., Molinas, M.: ‘Small-signal stability assessment of power electronics based power systems: a discussion of impedance- and eigenvalue-based methods’, IEEE Trans. Ind. Appl., 2017, 53, (5), pp. 50145030.
    26. 26)
      • 26. Pan, P., Hu, H., Yang, X., et al: ‘Impedance measurement of traction network and electric train for stability analysis in high-speed railways’, IEEE Trans. Power Electron., 2018, 33, (12), pp. 1008610100.
    27. 27)
      • 27. Wen, B., Boroyevich, D., Burgos, R., et al: ‘Analysis of D-Q small-signal impedance of grid-tied inverters’, IEEE Trans. Power Electron., 2016, 31, (1), pp. 675687.
    28. 28)
      • 28. Knuppel, T., Nielsen, J.N., Jensen, K.H., et al: ‘Small-signal stability of wind power system with full-load converter interfaced wind turbines’, IET Renew. Power Gener., 2012, 6, (2), pp. 7991.
    29. 29)
      • 29. Alawasa, K. M., Mohamed, Y. A. I., Xu, W.: ‘Modeling, analysis, and suppression of the impact of full-scale wind-power converters on subsynchronous damping’, IEEE Syst. J., 2013, 7, (4), pp. 700712.
    30. 30)
      • 30. Wu, F., Zhang, X.P., Ju, P.: ‘Small signal stability analysis and control of the wind turbine with the direct-drive permanent magnet generator integrated to the grid’, Electr. Power Syst. Res., 2009, 79, (12), pp. 16611667.
    31. 31)
      • 31. Harnefors, L.: ‘Modeling of three-phase dynamic systems using complex transfer functions and transfer matrices’, IEEE Trans. Ind. Electron., 2007, 54, (4), pp. 22392248.
    32. 32)
      • 32. Tao, H., Hu, H., Wang, X., et al: ‘Impedance-based harmonic instability assessment in multiple electric trains and traction network interaction system’, IEEE Trans. Ind. Appl., 2018, 54, (5), pp. 50835096.
    33. 33)
      • 33. Sun, J.: ‘Impedance-based stability criterion for grid-connected inverters’, IEEE Trans. Power Electron., 2011, 26, (11), pp. 30753078.

Related content

This is a required field
Please enter a valid email address