基于矢量匹配法的新能源电力系统节点惯量评估

孙铭锐; 文云峰; 廖帮昆; 汪婧文; 傅国斌; 王学斌

doi:10.19912/j.0254-0096.tynxb.2025-0518

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (8) : 381-394. DOI: 10.19912/j.0254-0096.tynxb.2025-0518

基于矢量匹配法的新能源电力系统节点惯量评估

孙铭锐¹, 文云峰¹, 廖帮昆¹, 汪婧文¹, 傅国斌², 王学斌²

作者信息 +

NODAL INERTIA ASSESSMENT FOR RENEWABLE ENERGY POWER SYSTEMS BASED ON VECTOR FITTING METHOD

Sun Mingrui¹, Wen Yunfeng¹, Liao Bangkun¹, Wang Jingwen¹, Fu Guobin², Wang Xuebin²

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文章历史 +

摘要

针对电网运行调度中仍缺乏有效的节点惯量在线监测手段的核心问题,提出一种基于矢量匹配法的新能源电力系统节点惯量评估方法。通过解析多类型惯量资源的频率响应机理,构建包含同步机组及新能源机组的节点惯量统一评估框架。进而建立基于矢量匹配法的传递函数参数辨识模型,利用节点有功功率-频率动态特性传递函数参数反演惯量水平。为突破传统矢量匹配法对初始极点配置的敏感性制约,引入粒子群优化算法,以频率拟合均方误差作为适应度函数优化初始极点配置。最后,基于改进的IEEE-39节点系统的多工况仿真测试表明：所提方法在评估精度、适应性等方面均具有显著优势。

Abstract

To address the critical issue of the lack of online assessment methods for nodal inertia in practical power grid dispatching and control, this paper proposes a nodal inertia assessment method in renewable energy power systems based on the vector fitting method. By analyzing the frequency response mechanisms of various inertia resources, a unified assessment framework for nodal inertia is established, covering both synchronous generators and renewable energy units. A transfer function parameter identification model is then developed based on the vector fitting method, and inertia levels are inverted by measuring the dynamic characteristics of nodal active power-frequency transfer function. To overcome the sensitivity of the traditional vector fitting method to initial pole configuration, particle swarm optimization is introduced to optimize the initial pole configuration, using frequency fitting mean square error as the fitness function. Finally, multiple operating condition simulations on an improved IEEE-39 node system demonstrate that the proposed method has significant advantages in assessment accuracy and applicability.

导出引用

孙铭锐, 文云峰, 廖帮昆, 汪婧文, 傅国斌, 王学斌. 基于矢量匹配法的新能源电力系统节点惯量评估[J]. 太阳能学报. 2026, 47(8): 381-394 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0518

Sun Mingrui, Wen Yunfeng, Liao Bangkun, Wang Jingwen, Fu Guobin, Wang Xuebin. NODAL INERTIA ASSESSMENT FOR RENEWABLE ENERGY POWER SYSTEMS BASED ON VECTOR FITTING METHOD[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 381-394 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0518

中图分类号： TM73

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