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1.东南大学电气工程学院,江苏省南京市 210096
2.东南大学数学学院,江苏省南京市 210096
胡健雄(1996—),男,博士研究生,主要研究方向:电力系统稳定分析与控制。E-mail:220182640@seu.edu.cn
汤奕(1977—),男,通信作者,博士,教授,博士生导师,主要研究方向:电力系统稳定分析与控制、电网信息物理系统、电力电子化电力系统。E-mail:tangyi@seu.edu.cn
李峰(1992—),男,博士,讲师,主要研究方向:电力系统稳定分析与控制。E-mail:lifeng_ee@seu.edu.cn
收稿日期:2021-05-10,
修回日期:2021-09-10,
网络出版日期:2021-10-21,
纸质出版日期:2022-01-10
移动端阅览
胡健雄,汤奕,李峰等.电力系统中数据-物理融合模型的并联模式性能分析[J].电力系统自动化,2022,46(1):15-24.
HU Jianxiong,TANG Yi,LI Feng,et al.Performance Analysis on Parallel Mode of Data-Physical Fusion Model in Power System[J].Automation of Electric Power Systems,2022,46(1):15-24.
胡健雄,汤奕,李峰等.电力系统中数据-物理融合模型的并联模式性能分析[J].电力系统自动化,2022,46(1):15-24. DOI: 10.7500/AEPS20210510003.
HU Jianxiong,TANG Yi,LI Feng,et al.Performance Analysis on Parallel Mode of Data-Physical Fusion Model in Power System[J].Automation of Electric Power Systems,2022,46(1):15-24. DOI: 10.7500/AEPS20210510003.
随着交直流混联电网规模的扩大与电力电子化设备的大规模并网,以新能源为主体的新型电力系统的动态特性愈加复杂。物理模型的机理可解释性与数据模型的特性拟合能力具有很强的互补性。如何将融合模型的构建从定性分析向定量分析提升亟待深入研究。文中基于电力系统中数据方法与物理方法的特点,针对4种典型数据-物理融合模型分析了其相对应的应用场景;以并联模式为研究对象,分别对比分析了并联模式与单一物理模型和单一数据模型的泛化误差,并提出了融合模型参数的选取方法;推导了并联模式下融合模型的泛化误差上限,并提出了改进融合模型性能的可行性建议;最后,结合暂态功角稳定问题验证了所提假设与结论的合理性。
With the expansion of AC/DC hybrid power system and the large-scale grid-connection of power electronic equipment
the dynamic characteristics of novel power system dominated by renewable energy become more and more complex. The mechanism interpretability of the physical model is highly complementary to the characteristic fitting ability of the data model. How to leverage the construction of fusion model from qualitative analysis to quantitative analysis needs in-depth research. Based on the characteristics of data methods and physical methods in the power system
the corresponding application scenarios of four typical data-physical fusion models are analyzed. Taking parallel mode as the research object
the generalization errors of parallel mode
physical only model and data only model are compared and analyzed respectively
and the selection method of fusion model parameters is proposed. The generalization error upper bound of the fusion model in parallel mode is derived
and the feasible suggestions to improve the performance of the fusion model are put forward. Finally
combined with the transient power angle stability problem
the rationality of the proposed assumptions and conclusions is verified.
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