Evaluation of commutation failure risk in single- or multi-infeed LCC-HVDC systems based on equivalent-fault method

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Abstract

In single- or multi-infeed line-commutated converter-based high-voltage direct current (LCC-HVDC) systems, commutation failure (CF) induced by alternating current (AC) faults may lead to serious consequences. Considering the randomness of fault occurrences, an accurate evaluation of the CF risk (CFR) from the system point of view becomes necessary in power system planning and operation. This paper first provides a definition of the CF severity (CFS) index corresponding to an AC fault. Then, on the basis of electromagnetic transient (EMT) simulation, an approach to calculate the CFS index considering the randomness of fault-occurrence time is presented. A novel equivalent-fault method is further put forward to make the EMT simulation scalable to calculate the CFS index in terms of a fault occurring in a large-scale receiving-end grid. Thereafter, the CFR index is introduced, which is defined as the sum of the products of the CFS index of each AC fault and the corresponding fault rate. Finally, the proposed method is verified on the modified IEEE 9-bus and modified IEEE 39-bus systems using PSCAD/EMTDC.

Keywords

commutation failure severity equivalent-fault method commutation failure risk fault randomness electromagnetic transient simulations 

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References

  1. 1.
    Thio C V, Davies J B, Kent K L. Commutation failures in HVDC transmission systems. IEEE Trans Power Deliver, 1996, 11: 946–957CrossRefGoogle Scholar
  2. 2.
    Xue Y, Zhang X P, Yang C. Elimination of commutation failures of LCC HVDC system with controllable capacitors. IEEE Trans Power Syst, 2016, 31: 3289–3299CrossRefGoogle Scholar
  3. 3.
    Guo C, Li C, Zhao C, et al. An evolutional line-commutated converter integrated with thyristor-based full-bridge module to mitigate the commutation failure. IEEE Trans Power Electron, 2017, 32: 967–976CrossRefGoogle Scholar
  4. 4.
    Ni X, Zhao C, Guo C, et al. Enhanced line commutated converter with embedded fully controlled sub-modules to mitigate commutation failures in high voltage direct current systems. IET Power Electron, 2016, 9: 198–206CrossRefGoogle Scholar
  5. 5.
    Wei Z, Yuan Y, Lei X, et al. Direct-current predictive control strategy for inhibiting commutation failure in HVDC converter. IEEE Trans Power Syst, 2014, 29: 2409–2417CrossRefGoogle Scholar
  6. 6.
    Hansen A, Havemann H. Decreasing the commutation failure frequency in HVDC transmission systems. IEEE Trans Power Deliver, 2000, 15: 1022–1026CrossRefGoogle Scholar
  7. 7.
    Zheng X, Zhao S, Li M, et al. Using the STATCOM with energy storage to enhance the stability of the AC-DC hybrid system. In: Proceedings of the 5th International Conference on Electric Utility Deregulation and Restructuring and Power technologies. Changsha: IEEE, 2015. 242–247Google Scholar
  8. 8.
    Wang X, Wang Y H, Yan H, et al. Research on influences to reduce the commutation failure of different topology structures of STATCOM. In: Proceedings of the 2016 IEEE Transportation Electrification Conference and Expo, Asia-Pacific. Busan: IEEE, 2016. 470–473CrossRefGoogle Scholar
  9. 9.
    Zheng Q Q, Wang X, Fu Y S, et al. A STATCOM compensation scheme for suppressing commutation failure in HVDC. In: Proceedings of the Conference of the IEEE Industrial Electronics Society. Florence: IEEE, 2016. 1081–1086Google Scholar
  10. 10.
    Wang L J, Wang G, Li H F, et al. Risk evaluation of commutation failure in multi-infeed HVDC systems under AC system fault conditions (in Chinese). Auto Elect Power Syst, 2011, 35: 9–14Google Scholar
  11. 11.
    Shao Y, Tang Y. Fast Evaluation of commutation failure risk in multi-infeed HVDC systems. IEEE Trans Power Syst, 2018, 33: 646–653CrossRefGoogle Scholar
  12. 12.
    Chen Z, Zhou B R, Hong C, et al. Critical impedance boundary-based risk assessment on simultaneous faults in multi-infeed DC transmission system (in Chinese). Power System Technol, 2013, 37: 874–878Google Scholar
  13. 13.
    Rahimi E, Gole A M, Davies J B, et al. Commutation failure in singleand multi-infeed HVDC systems. In: Proceedings of the 8th IEE International Conference on AC and DC Power Transmission. London: IET, 2006. 182–186Google Scholar
  14. 14.
    Kimbark E W. Direct Current Transmission. USA: John Wiley &Sons Press, 1971Google Scholar
  15. 15.
    Rahimi E, Gole A M, Davies J B, et al. Commutation failure analysis in multi-infeed HVDC systems. IEEE Trans Power Deliver, 2011, 26: 378–384CrossRefGoogle Scholar
  16. 16.
    Szechtmam M, Wess T, Thio C V. A benchmark model for HVDC system studies. In: Proceedings of the International Conference on AC and DC Power Transmission. London: IET, 1991. 374–378Google Scholar
  17. 17.
    Zhang B M, Chen S S, Yan Z. Advanced Power System Analysis (in Chinese). Beijing: Tsinghua University Press, 2007Google Scholar
  18. 18.
    Yu C G, Chen Q, Gao Z J, et al. Fault calculation of AC system interconnected by HVDC system. In: Proceedings of the Innovative Smart Grid Technologies-Asia. Tianjin: IEEE, 2012. 1–6Google Scholar
  19. 19.
    Undrill J M, Kostyniak T E. Advanced power system fault analysis method. IEEE Trans Power App Syst, 1975, 94: 2141–2150CrossRefGoogle Scholar
  20. 20.
    Han Z X. Generalized method of analysis of simultaneous faults in power systems. IEEE Trans Power App Syst, 1982, 101: 3933–3942CrossRefGoogle Scholar
  21. 21.
    Zhang X, Flueck A J, Abhyankar S. Implicitly coupled electromechanical and electromagnetic transient analysis using a frequencydependent network equivalent. IEEE Trans Power Deliver, 2017, 32: 1262–1269CrossRefGoogle Scholar

Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Power Systems, Department of Electrical EngineeringTsinghua UniversityBeijingChina

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