计及脆弱支路筛选的含风电电网连锁故障预防策略

邓慧琼; 钟运恒; 黄靖

doi:10.19912/j.0254-0096.tynxb.2023-1359

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (6) : 544-555. DOI: 10.19912/j.0254-0096.tynxb.2023-1359

计及脆弱支路筛选的含风电电网连锁故障预防策略

邓慧琼^1,2, 钟运恒^1,2, 黄靖^1,2

作者信息 +

WIND POWER INTEGRATED GRID CASCADE FAULT PREVENTION STRATEGY CONSIDERING VULNERABLE BRANCH SCREENING

Deng Huiqiong^1,2, Zhong Yunheng^1,2, Huang Jing^1,2

Author information +

文章历史 +

摘要

针对含风电电力系统中由支路故障引发的连锁故障现象,提出一种考虑脆弱支路筛选的含风电电力系统连锁故障预防策略。首先,构建支路跳闸概率模型和系统安全指标,并引入概率密度函数和正态分布函数对含风电电力系统中各支路进行脆弱性评估,以此筛选出严重初始故障支路;然后根据支路脆弱性排序筛选出对电网运行安全性影响较为严重的一条或几条支路,建立预想事故集;最后,建立兼顾系统安全指标和优先消纳风电功率的连锁故障预防控制模型,并使用粒子群算法求解该模型。基于IEEE-14和IEEE-39节点系统进行仿真分析,结果表明所提考虑脆弱支路含风电电力系统连锁故障预防策略不仅可优先消纳风电功率,而且可确保含风电电力系统拥有充足的安全裕度。

Abstract

This paper presents a wind power integrated grid cascade fault prevention strategy that considers vulnerable branch screening, targeting the cascade fault phenomenon caused by branch faults in wind power systems. Firstly, a branch trip probability model and system safety indicators are constructed. Probability density functions and normal distribution functions are introduced to assess the vulnerability of various branches in the wind power system, thereby the serious initial fault branches are screened. Then, based on the vulnerability ranking of branches, one or several branches with serious impacts on grid operational safety are selected, and the expected accident set is established. Finally, a cascade fault prevention and control model is developed, which takes into account both system safety indicators and prioritized wind power absorption. The model is solved using a particle swarm optimization algorithm. The simulation analysis is conducted based on IEEE-14 and IEEE-39 node systems, and the results indicate that the proposed wind power integrated grid cascade fault prevention strategy, considering vulnerable branches, not only prioritizes wind power absorption but also ensures a sufficient security margin for the wind power system.

导出引用

邓慧琼, 钟运恒, 黄靖. 计及脆弱支路筛选的含风电电网连锁故障预防策略[J]. 太阳能学报. 2024, 45(6): 544-555 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1359

Deng Huiqiong, Zhong Yunheng, Huang Jing. WIND POWER INTEGRATED GRID CASCADE FAULT PREVENTION STRATEGY CONSIDERING VULNERABLE BRANCH SCREENING[J]. Acta Energiae Solaris Sinica. 2024, 45(6): 544-555 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1359

中图分类号： TM732

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