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Risk Assessment of Power System Considering Frequency Dynamics and Cascading Process

Author

Listed:
  • Chao Luo

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

  • Jun Yang

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China
    Current address: No. 8 South Street of East Lake, Wuhan 430072, China.)

  • Yuanzhang Sun

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

Abstract

Frequency security is vital to the safety of power systems and has been scrutinized for many years. The conventional frequency security analysis only checks whether the frequency after anticipated initial failures can remain in the normal range based on some aggregated models, but the influence of potential cascading failures has not been considered yet. This is not enough, especially when the modern power system suffers the increasing threat of cascading failures. Therefore, this paper proposes a novel frequency simulation model considering the influence of cascading failure to reveal the security level of power systems comprehensively. The proposed model is based on a platform on which the frequency dynamics and the power flow distributions can be calculated jointly. Moreover, simulation models of protection devices and some supervisory operation-control schemes are also taken into account. Case studies validate the effectiveness of the proposed model on the IEEE 39-bus system. Moreover, the results of some further probabilistic simulations under different operation parameters are obtained, which show the great significance of improving the frequency regulation performance to cope with challenges of blackouts.

Suggested Citation

  • Chao Luo & Jun Yang & Yuanzhang Sun, 2018. "Risk Assessment of Power System Considering Frequency Dynamics and Cascading Process," Energies, MDPI, vol. 11(2), pages 1-16, February.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:422-:d:131540
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    Citations

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    Cited by:

    1. Jinghan He & Ninghui Han & Ziqi Wang, 2021. "Optimization Method for Multiple Measures to Mitigate Line Overloads in Power Systems," Energies, MDPI, vol. 14(19), pages 1-19, September.
    2. Tingting Sun & Hongru Shi & Lei Ren & Jiejie Huang, 2023. "Analysis of Frequency Regulation Capability of Doubly Fed Induction Generator and Supercapacitor Energy Storage Based on Dynamic Power Flow," Energies, MDPI, vol. 16(20), pages 1-17, October.
    3. Chunlei Zhang & Xiaodong Chu & Bing Zhang & Linlin Ma & Xin Li & Xiaobo Wang & Liang Wang & Cheng Wu, 2018. "A Coordinated DC Power Support Strategy for Multi-Infeed HVDC Systems," Energies, MDPI, vol. 11(7), pages 1-20, June.
    4. Lutfu Saribulut & Gorkem Ok & Arman Ameen, 2023. "A Case Study on National Electricity Blackout of Turkey," Energies, MDPI, vol. 16(11), pages 1-20, May.

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