考虑大规模风电接入的电网薄弱区域动态无功需求评估

戴剑丰; 王子博; 谢嫦嫦; 汤奕

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

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (9) : 60-69. DOI: 10.19912/j.0254-0096.tynxb.2023-0534

考虑大规模风电接入的电网薄弱区域动态无功需求评估

戴剑丰^1,2, 王子博^1,2, 谢嫦嫦³, 汤奕³

作者信息 +

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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文章历史 +

摘要

提出考虑大规模风电接入的电网薄弱区域动态无功需求评估方法。首先,采用随机矩阵理论对大规模风电场群接入的电力系统进行电压薄弱节点和薄弱区域辨识,若风电接入地区为电压薄弱区域,则令风电场群进入紧急电压控制预决策环节;然后,基于BP神经网络建立薄弱区域内暂态电压稳定指标计算模型,并在此基础上提出基于灵敏度的薄弱区域动态无功需求评估方法;最后,在风电场群接入的IEEE 10机 39节点系统上对该文所提方法的有效性进行验证。

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.

导出引用

戴剑丰, 王子博, 谢嫦嫦, 汤奕. 考虑大规模风电接入的电网薄弱区域动态无功需求评估[J]. 太阳能学报. 2024, 45(9): 60-69 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0534

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

中图分类号： TM732

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