PROBABILITY ANALYSIS AND APPLICATION OF STATIC VOLTAGE STABILITY REGION BASED ON UNSCENTED TRANSFORMATION

Qi Yue; Liu Daobing

doi:10.19912/j.0254-0096.tynxb.2023-1824

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 151-159. DOI: 10.19912/j.0254-0096.tynxb.2023-1824

PROBABILITY ANALYSIS AND APPLICATION OF STATIC VOLTAGE STABILITY REGION BASED ON UNSCENTED TRANSFORMATION

Qi Yue^1,2, Liu Daobing¹

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Abstract

In order to reflect the impact of renewable energy uncertainty on static voltage stability, a probabilistic analysis method of SVSR based on the unscented transformation method （UTM） is proposed. Firstly, the probability model of SVSR is established by considering the stochasticity of renewable energy generation; then, the stochastic problem is converted into a deterministic problem by the UTM, the probabilistic characteristic of the SVSR are quickly calculated, and the probabilistic characteristics of the system's static voltage stability are analyzed by the probabilistic indexes, and the system's static voltage stability is optimized based on the probabilistic indexes. Finally, an arithmetic example is analyzed by IEEE 30 bus test system to verify the efficiency and accuracy of the method proposed in this paper.

Key words

electric power systems / renewable energy / uncertainty analysis / static voltage stability region / unscented transformation / multiobjective optimization

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Qi Yue, Liu Daobing. PROBABILITY ANALYSIS AND APPLICATION OF STATIC VOLTAGE STABILITY REGION BASED ON UNSCENTED TRANSFORMATION[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 151-159 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1824

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