基于时序卷积网络的低压柔性互联配电网短期最大供电能力评估
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彭寒梅
1
,
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肖千皓
1
,
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谭貌
1, 2
,
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苏永新
1, 2
,
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李辉
1, 2
作者信息
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1.湘潭大学自动化与电子信息学院,湖南 湘潭 411105
2.湖南省多能协同控制技术工程研究中心(湘潭大学),湖南 湘潭 411105
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彭寒梅(1979),女,通信作者,副教授,博士,研究方向为智能配电网规划与优化调度,penghanmei8@163.com;
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肖千皓(1999),男,硕士研究生,研究方向为低压柔性互联配电网供电能力评估,16670717760@163.com;
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谭貌(1981),男,教授,博士,研究方向为综合能源系统及其优化,mr.tanmao@gmail.com。
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收起
Evaluation of Short-Term Total Supply Capability for Low-Voltage Flexible Interconnected Distribution Network Based on Temporal Convolutional Network
Author information
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1.College of Automation and Electronic information, Xiangtan University, Xiangtan, Hunan 411105, China
2.Hunan Engineering Research Center of Multi-Energy Cooperative Control Technology, Xiangtan University, Xiangtan, Hunan 411105, China
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文章历史
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| 收稿日期 |
出版日期 |
| 2024-03-07 |
2025-10-20 |
PDF (1996K)
摘要
低压柔性互联将同一区域配电网的低压台区间形成互联互供,可提高配电系统的最大供电能力(total supply capability,TSC),且低压台区接入的分布式能源具有时序性和不确定性,影响TSC值的变动。为此,提出了一种基于时序卷积神经网络(temporal convolutional network,TCN)的低压柔性互联配电网短期TSC评估方法,以兼具快速性和准确性。首先,进行低压柔性互联配电网短期TSC分析,建立基于数据驱动的短期TSC评估架构;然后,采用模型驱动的短期TSC评估方法,得到短期TSC值以获得训练样本,再离线训练TCN模型,得到短期TSC值与具有一定时序性的影响因素间非线性映射的TCN模型,实现由TCN在线评估系统短期TSC。最后,低压柔性互联配电网算例系统测试验证了所提方法的有效性。
Abstract
Low-voltage flexible interconnection forms interconnection and mutual power supply between low-voltage substation areas in the same regional distribution network, which can improve the total supply capacity (TSC) of the distribution system. Moreover, the distributed energy connected to the low-voltage substation area has temporal and uncertain characteristics, which affect the variation of TSC value. Therefore, a short-term TSC evaluation method for low-voltage flexible interconnected distribution networks based on temporal convolutional network (TCN) is proposed, which combines speed and accuracy. Firstly, short-term TSC analysis of low-voltage flexible interconnected distribution networks is conducted and establish a data-driven short-term TSC evaluation architecture is established. Then, a model-driven short-term TSC evaluation method is adopted to obtain short-term TSC values to obtain training samples. The TCN model is then trained offline to obtain a nonlinear mapping between short-term TSC values and influencing factors with certain temporal characteristics. This enables the online evaluation of short-term TSC by the TCN system. Finally, the effectiveness of the proposed method is verified through system testing of low-voltage flexible interconnected distribution networks.
Graphical abstract
关键词
低压柔性互联
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数据驱动
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模型驱动
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时序卷积网络
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短期最大供电能力
Key words
low-voltage flexible interconnection
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data-driven
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model-driven
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temporal convolutional network
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short-term total supply capability
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彭寒梅,肖千皓,谭貌,苏永新,李辉.
基于时序卷积网络的低压柔性互联配电网短期最大供电能力评估[J].
南方电网技术, 2025, 19(10): 111-120 DOI:10.13648/j.cnki.issn1674-0629.2025.10.011
基金资助
国家自然科学基金资助项目(51777179)
湖南省自然科学基金项目(2023JJ50241)