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The voltage collapse problem is attracting more attention in operating a power system with stability. The causes of instability of voltage can be of some disturbance or increase in system loading or change in the power system, which leads to a steady voltage drop that is uncontrollable and it will further lead to voltage collapse. The analysis of a power system during contingency will give information to the operator about the future perceptive of a system when it is subjected to a disturbance, and the operator will be ready to handle and control the situation to restore the stable condition. This paper presents the Lyapunov energy function-based power system stability margin to evaluate voltage stability’s proximity in the presence of diverse operating and operational situations. To implement the suggested solution, 5 bus and 14 bus IEEE systems have been taken into consideration.

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Voltage Stability Assessment Using Energy Function in N-1 Contingency

  • 会议论文

  • 发表日期：

    2025年

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  • Yarnagula Swathi,
  • Jatoth Rajender,
  • Manisha Dubey

摘要

The voltage collapse problem is attracting more attention in operating a power system with stability. The causes of instability of voltage can be of some disturbance or increase in system loading or change in the power system, which leads to a steady voltage drop that is uncontrollable and it will further lead to voltage collapse. The analysis of a power system during contingency will give information to the operator about the future perceptive of a system when it is subjected to a disturbance, and the operator will be ready to handle and control the situation to restore the stable condition. This paper presents the Lyapunov energy function-based power system stability margin to evaluate voltage stability’s proximity in the presence of diverse operating and operational situations. To implement the suggested solution, 5 bus and 14 bus IEEE systems have been taken into consideration.