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Steady-State Stability of Sending-End System with Mixed Synchronous Generator and Power-Electronic-Interfaced Renewable Energy

Author

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  • Kaiyuan Hou
  • Zeyu Li
  • Lei Chen
  • Deming Xia
  • Qun Li
  • Yong Xiao

Abstract

Coupled with the power system through power-electronic interfaces, renewable energies including wind power and photovoltaic can control the power quickly and flexibly. In the steady-state stability analysis, by neglecting the fast dynamics of power-electronic interfaces, the renewable energy power is simplified to a static power injection model and can be described as an algebraic equation in the dynamic process. Based on this simplified model, the steady-state stability of sending-end system with mixed synchronous generator and power-electronic-interfaced renewable energy is studied. By proposing a triangular transformation model based on the classical model of power system, the steady-state stability analysis becomes feasible. The mechanism of steady-state stability is revealed, and the influence of renewable energy on the steady-state stability limit is quantitatively investigated. When the renewable energy power increases, the steady-state stability limit of the sending-end system first increases and then decreases. Reducing the power output of synchronous generator can change for a higher integration limit of renewable energy. Simulation results validate the conclusion.

Suggested Citation

  • Kaiyuan Hou & Zeyu Li & Lei Chen & Deming Xia & Qun Li & Yong Xiao, 2020. "Steady-State Stability of Sending-End System with Mixed Synchronous Generator and Power-Electronic-Interfaced Renewable Energy," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-11, April.
    • Handle: RePEc:hin:jnlmpe:8693245
    DOI: 10.1155/2020/8693245
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    Cited by:

    1. Mohamed El-Borhamy & Essam Eddin M. Rashad & Ismail Sobhy & M. Kamel El-Sayed, 2021. "Modeling and Semi-Analytic Stability Analysis for Dynamics of AC Machines," Mathematics, MDPI, vol. 9(6), pages 1-13, March.

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