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Novel Detection Method for Consecutive DC Commutation Failure Based on Daubechies Wavelet with 2nd-Order Vanishing Moments

Author

Listed:
  • Tao Lin

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

  • Ziyu Guo

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

  • Liyong Wang

    (State Grid Beijing Electric Power Company, Beijing 100031, China)

  • Rusi Chen

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

  • Ruyu Bi

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

Abstract

Accurate detection and effective control strategy of commutation failure (CF) of high voltage direct current (HVDC) are of great significance for keeping the safe and stable operations of the hybrid power grid. At first, a novel detection method for consecutive CF is proposed. Concretely, the 2nd and higher orders’ derivative values of direct current are summarized as the core to judge CF by analyzing the physical characteristics of the direct current waveform of the converter station in CF. Then, the Daubechies wavelet coefficient that can represent the 2nd and higher order derivative values of direct current is derived. Once the wavelet coefficients of the sampling points are detected to exceed the threshold, the occurrence of CF is confirmed. Furthermore, by instantly increasing advanced firing angle β in the inverter side, an additional emergency control strategy to prevent subsequent CF is proposed. Eventually, with simulations of the benchmark model, the effectiveness and superiorities of the proposed detection method and additional control strategy in accuracy and rapidity are verified.

Suggested Citation

  • Tao Lin & Ziyu Guo & Liyong Wang & Rusi Chen & Ruyu Bi, 2018. "Novel Detection Method for Consecutive DC Commutation Failure Based on Daubechies Wavelet with 2nd-Order Vanishing Moments," Energies, MDPI, vol. 11(2), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:261-:d:128292
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    Citations

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    Cited by:

    1. Zhilin Guo & Liangliang Hao & Junyong Wu & Xingguo Wang & Hong Cao & Guang Wang, 2020. "Synchronous Condenser’s Loss of Excitation and Its Impact on the Performance of UHVDC," Energies, MDPI, vol. 13(18), pages 1-16, September.
    2. Li Sun & Hongbo Liu & Chenglian Ma, 2020. "AC Tie-Line Power Oscillation Mechanism and Peak Value Calculation for a Two-Area AC/DC Parallel Interconnected Power System Caused by LCC-HVDC Commutation Failures," Energies, MDPI, vol. 13(5), pages 1-14, March.

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