李企洲,李梁,赵健,高源,孙洲,陈峰
LI Qizhou,LI Liang,ZHAO Jian,GAO Yuan,SUN Zhou,CHEN Feng

• 1:上海电力大学电气工程学院
• 2:国网浙江省电力有限公司嵊州市供电公司
• 3:国网浙江省电力有限公司电力科学研究院

摘要(Abstract)：

针对配电网量测设备部署不全、数据传输丢失等导致的量测数据稀疏问题，提出一种基于GINN（图填补神经网络）的配电网稀疏量测数据推演方法，以解决配电网现有量测数据精度低、稀疏度高的问题。首先，基于GINN的量测特征编码器模块，提取配电网节点量测数据的功率、电压等潮流特征，并利用Transformer网络建立了节点量测不同潮流特征之间的关联。其次，基于GINN的图编码器模块，建立了配电网节点间的拓扑连接关系，并利用GCN（图卷积网络）实现了节点量测潮流特征的传递与更新。然后，通过两个模块分别捕捉的节点量测数据不同潮流特征间的关系和节点间的拓扑关联，利用稀疏的量测数据实现了缺失数据的推演补齐。最后，采用IEEE 14、30、57和118节点系统开展仿真测试，验证了所提方法的有效性。
Incomplete deployment of measurement devices and data transmission losses can result in sparse measurements in distribution networks. To address this issue, this paper proposes an inference method for sparse measurements based on a graph imputation neural network(GINN). The proposed method aims to improve the accuracy and reduce the sparsity of existing measurements. First, a GINN-based measurement feature encoder module is designed to extract power flow features such as power and voltage from nodal measurements. A transformer network is employed to model cross-feature correlations among different power flow features. Second, a GINN-based graph encoder module explicitly encodes topological connectivity between distribution network nodes. By incorporating a graph convolutional network(GCN), this module enables the propagation and updating of nodal power flow features. Subsequently, by leveraging two modules to capture the correlations between different power flow features of node measurements and the topological correlations across nodes, the missing data is inferred and completed using the sparse measurements. Finally, simulation tests are conducted on IEEE 14-, 30-, 57-, and 118-bus systems to validate the effectiveness of the proposed method.

关键词(KeyWords)： 配电网;稀疏量测;图填补神经网络;数据补齐
distribution network;sparse measurement;GINN;data completion

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51907114)

作者(Author): 李企洲,李梁,赵健,高源,孙洲,陈峰
LI Qizhou,LI Liang,ZHAO Jian,GAO Yuan,SUN Zhou,CHEN Feng

DOI: 10.19585/j.zjdl.202603009

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