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Theoretical Analysis on the Short-Circuit Current of Inverter-Interfaced Renewable Energy Generators with Fault-Ride-Through Capability

Author

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  • Sumei Liu

    (The School of Technology, Beijing Forestry University, Beijing 100083, China)

  • Tianshu Bi

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing 102206, China)

  • Yanlin Liu

    (State Grid Xinzhou Power Supply Company, Xinzhou 034000, China)

Abstract

Renewable energy generators (REGs) usually employ power electronic devices for connecting with the grid, which makes their fault characteristics completely different from those of conventional synchronous generators. In the existing studies, the simulation methods are mainly adopted to analyze fault current contribution from REG. As a result, the explanations on the fault current show diversity and cannot reach a recognized standard. The REGs’ mathematical model in relay-setting calculations is unknown. Thus, this paper theoretically analyses the fault current characteristics of inverter-interfaced REGs (IIREGs) with fault-ride-through (FRT) ability. In order to understand the fault current characteristics, the FRT control strategy for IIREGs is firstly studied. Then the characteristics of high-frequency and fundamental-frequency fault currents from IIREGs are theoretically analyzed after and during the faults. The affecting factors and duration time of different frequency fault currents are, respectively, revealed. Further, the mathematical expression of fundamental fault currents from IIREGs are derived and verified based on the experimental test bench. The results can be used in estimating the IIREGs’ fault contributions and developing the fault calculation model.

Suggested Citation

  • Sumei Liu & Tianshu Bi & Yanlin Liu, 2017. "Theoretical Analysis on the Short-Circuit Current of Inverter-Interfaced Renewable Energy Generators with Fault-Ride-Through Capability," Sustainability, MDPI, vol. 10(1), pages 1-15, December.
    • Handle: RePEc:gam:jsusta:v:10:y:2017:i:1:p:44-:d:124350
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    References listed on IDEAS

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    1. Guangping Zhuo & Jacob D. Hostettler & Patrick Gu & Xin Wang, 2016. "Robust Sliding Mode Control of Permanent Magnet Synchronous Generator-Based Wind Energy Conversion Systems," Sustainability, MDPI, vol. 8(12), pages 1-20, December.
    2. Moonsung Bae & Hwanik Lee & Byongjun Lee, 2017. "An Approach to Improve the Penetration of Sustainable Energy Using Optimal Transformer Tap Control," Sustainability, MDPI, vol. 9(9), pages 1-15, August.
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    Cited by:

    1. Khalfan Al Kharusi & Abdelsalam El Haffar & Mostefa Mesbah, 2023. "Adaptive Machine-Learning-Based Transmission Line Fault Detection and Classification Connected to Inverter-Based Generators," Energies, MDPI, vol. 16(15), pages 1-22, August.
    2. Bane Popadic & Boris Dumnic & Dragan Milicevic & Luka Strezoski & Natasa Petrovic, 2021. "Sub-Transient Response of the DSC Controlled Inverter under Fault," Energies, MDPI, vol. 14(16), pages 1-18, August.
    3. Qais Alsafasfeh & Omar A. Saraereh & Imran Khan & Sunghwan Kim, 2019. "Solar PV Grid Power Flow Analysis," Sustainability, MDPI, vol. 11(6), pages 1-25, March.
    4. Khalfan Al Kharusi & Abdelsalam El Haffar & Mostefa Mesbah, 2022. "Fault Detection and Classification in Transmission Lines Connected to Inverter-Based Generators Using Machine Learning," Energies, MDPI, vol. 15(15), pages 1-23, July.
    5. Arthur K. Barnes & Jose E. Tabarez & Adam Mate & Russell W. Bent, 2021. "Optimization-Based Formulations for Short-Circuit Studies with Inverter-Interfaced Generation in PowerModelsProtection.jl," Energies, MDPI, vol. 14(8), pages 1-27, April.

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