Critical Events/Moments Identification Method for Power System Transient Stability Analysis

The continuous integration of renewable energy generation (REG) into power systems has increased the complexity of their transient characteristics. This complexity is manifested in the coupling and transition of various transient stability issues, typically driven by critical events such as grid-dis...

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Published in2024 3rd International Conference on Energy and Electrical Power Systems (ICEEPS) pp. 681 - 685
Main Authors Zhou, Jiayang, Bai, Shibin, Zheng, Liang, Tian, Zhihao, Sun, Zelun, Zhang, Jiabin, Yang, Songhao
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.07.2024
Subjects
cascading failure simulation
Complexity theory
Continuous integration
Couplings
critical events/moments
DC blocking
Matlab
Measurement
Power system stability
renewable energy grid-disconnection
Renewable energy sources
Stability criteria
Transient analysis
transient stability
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Summary:The continuous integration of renewable energy generation (REG) into power systems has increased the complexity of their transient characteristics. This complexity is manifested in the coupling and transition of various transient stability issues, typically driven by critical events such as grid-disconnection of REG and DC communication failures. Existing methods for analyzing individual transient stability issues are inadequate to handle such complex scenarios. In response to this problem, this paper proposes a method for identifying critical events/moments for transient stability analysis. Firstly, evaluation metrics for different stability issues are introduced, establishing a quantitative evaluation scheme for transient stability. Secondly, criteria for identifying the dominant stability issue of the system are provided, and a scheme for identifying critical events and moments is proposed. Finally, the effectiveness of the proposed method is validated through an improved IEEE 39-bus system.
DOI:10.1109/ICEEPS62542.2024.10693082