1.新疆大学电气工程学院,新疆维吾尔自治区乌鲁木齐市 830017
2.国网新疆电力有限公司,新疆维吾尔自治区乌鲁木齐市 830063
3.国网电力科学研究院有限公司(南瑞集团有限公司),江苏省南京市 211106
杨晨阳(2001—),男,硕士研究生,主要研究方向:电力系统稳定分析。E-mail:2761535692@qq.com
王海云(1973—),女,通信作者,硕士,教授,主要研究方向:可再生能源发电与并网技术。E-mail:why@xju.edu.cn
亢朋朋(1986—),男,硕士,高级工程师,主要研究方向:电力系统稳态分析技术。E-mail:kangpengpeng202@163.com
收稿:2025-05-22,
修回:2025-09-16,
网络首发:2025-11-24,
纸质出版:2026-02-25
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杨晨阳,王海云,亢朋朋等.面向高频切机控制的电力外送系统动态分区方法[J].电力系统自动化,2026,50(4):186-196.
YANG Chenyang,WANG Haiyun,KANG Pengpeng,et al.Dynamic Partitioning Method of Power Transmission System for Over-frequency Generator Tripping Control[J].Automation of Electric Power Systems,2026,50(4):186-196.
杨晨阳,王海云,亢朋朋等.面向高频切机控制的电力外送系统动态分区方法[J].电力系统自动化,2026,50(4):186-196. DOI: 10.7500/AEPS20250522010.
YANG Chenyang,WANG Haiyun,KANG Pengpeng,et al.Dynamic Partitioning Method of Power Transmission System for Over-frequency Generator Tripping Control[J].Automation of Electric Power Systems,2026,50(4):186-196. DOI: 10.7500/AEPS20250522010.
高比例新能源接入导致电力系统频率特性发生改变,暂态失步判别成为系统安全保障的关键,需精准计算暂态稳定裕度并采取高频切机措施,以应对机组失步诱发的系统解列风险。然而,现有研究多以系统整体考虑切机,缺乏区域划分以实现精细化切机。为此,文中提出基于多维度指标的动态集群划分策略:通过层次分析法融合电气-动态特征构建机组集群,结合柔性划分方法构建隶属度函数,完成边界节点的重新划分,并基于扩展等面积准则搭建暂态稳定域快速评估模型,对划分区域的暂态稳定裕度展开分析。在中国西北某电力系统外送场景中进行仿真分析,结果表明,所提出的集群划分方法合理有效,验证了该方法在复杂外送场景下的工程适用性。
The integration of high-proportion renewable energy sources leads to the changes in the frequency characteristics of power systems. As a result
transient loss-of-synchronism assessment has become crucial for system security
requiring accurate calculation of transient stability margins and the implementation of over-frequency generator tripping measures to mitigate the risk of system splitting induced by generator desynchronization. However
most existing studies consider generator tripping from a system-wide perspective and lack regional partitioning for refined generator tripping. Therefore
this paper proposes a dynamic cluster partitioning strategy based on multi-dimensional indicators. By using the analytic hierarchy process
electrical and dynamic characteristics are integrated to form generator clusters. Combined with a flexible partitioning method
membership functions are constructed to enable re-partitioning of boundary nodes. Furthermore
a fast assessment model of transient stability regions is developed based on the extended equal area criterion (EEAC) to analyze the transient stability margins of the partitioned regions. Simulation analysis is carried out in a power transmission scenario in Northwest China. The results show that the proposed cluster partitioning method is rational and effective
demonstrating its engineering applicability in complex power transmission scenarios.
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