DYNAMIC REACTIVE POWER DEMAND ASSESSMENT IN WEAK AREA OF POWER GRID CONSIDERING LARGE-SCALE WIND POWER INTEGRATION

Dai Jianfeng; Wang Zibo; Xie Changchang; Tang Yi

doi:10.19912/j.0254-0096.tynxb.2023-0534

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (9) : 60-69. DOI: 10.19912/j.0254-0096.tynxb.2023-0534

DYNAMIC REACTIVE POWER DEMAND ASSESSMENT IN WEAK AREA OF POWER GRID CONSIDERING LARGE-SCALE WIND POWER INTEGRATION

Dai Jianfeng^1,2, Wang Zibo^1,2, Xie Changchang³, Tang Yi³

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Abstract

A dynamic reactive power demand assessment method considering large-scale wind power access is proposed in this paper. Firstly, the random matrix theory is applied to identify weak voltage nodes and areas in power system where the large-scale wind farm cluster is integrated. If the area where the wind farm cluster is integrated is the weak voltage area, the wind farm cluster enters the pre-decision link of emergency voltage control. Secondly, the calculation model of transient voltage stability index in weak areas is established based on BP neural network, and a sensitivity based dynamic reactive power demand assessment method was proposed. Finally, the effectiveness of the proposed method is verified on the IEEE 10 machine 39 bus system connected to the wind farm group.

Key words

wind power / reactive power / voltage control / neural networks / random matrix theory / voltage weak area identification

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Dai Jianfeng, Wang Zibo, Xie Changchang, Tang Yi. DYNAMIC REACTIVE POWER DEMAND ASSESSMENT IN WEAK AREA OF POWER GRID CONSIDERING LARGE-SCALE WIND POWER INTEGRATION[J]. Acta Energiae Solaris Sinica. 2024, 45(9): 60-69 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0534

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