Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit
With the continuous expansion of the UHV AC/DC interconnection scale, online, high-precision, and fast transient stability assessment (TSA) is very important for the safe operation of power grids. In this study, a transient stability assessment method based on the gating spatiotemporal graph neural...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-04-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.885673/full |
| _version_ | 1818479550097522688 |
|---|---|
| author | Jianfeng Liu Chenxi Yao Lele Chen |
| author_facet | Jianfeng Liu Chenxi Yao Lele Chen |
| author_sort | Jianfeng Liu |
| collection | DOAJ |
| description | With the continuous expansion of the UHV AC/DC interconnection scale, online, high-precision, and fast transient stability assessment (TSA) is very important for the safe operation of power grids. In this study, a transient stability assessment method based on the gating spatiotemporal graph neural network (GSTGNN) is proposed. A time-adaptive method is used to improve the accuracy and speed of transient stability assessment. First, in order to reduce the impact of dynamic topology on TSA after fault removal, GSTGNN is used to extract and fuse the key features of topology and attribute information of adjacent nodes to learn the spatial data correlation and improve the evaluation accuracy. Then, the extracted features are input into the gated recurrent unit (GRU) to learn the correlation of data at each time. Fast and accurate evaluation results are output from the stability threshold. At the same time, in order to avoid the influence of the quality of training samples, an improved weighted cross entropy loss function with the K-nearest neighbor (KNN) idea is used to deal with the unbalanced training samples. Through the analysis of an example, it is proved from the data visualization that the TSA method can effectively improve the assessment accuracy and shorten the assessment time. |
| first_indexed | 2024-12-10T11:12:13Z |
| format | Article |
| id | doaj.art-807da0e56d7c4118816b97d562dfbc15 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-12-10T11:12:13Z |
| publishDate | 2022-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-807da0e56d7c4118816b97d562dfbc152022-12-22T01:51:22ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-04-011010.3389/fenrg.2022.885673885673Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent UnitJianfeng LiuChenxi YaoLele ChenWith the continuous expansion of the UHV AC/DC interconnection scale, online, high-precision, and fast transient stability assessment (TSA) is very important for the safe operation of power grids. In this study, a transient stability assessment method based on the gating spatiotemporal graph neural network (GSTGNN) is proposed. A time-adaptive method is used to improve the accuracy and speed of transient stability assessment. First, in order to reduce the impact of dynamic topology on TSA after fault removal, GSTGNN is used to extract and fuse the key features of topology and attribute information of adjacent nodes to learn the spatial data correlation and improve the evaluation accuracy. Then, the extracted features are input into the gated recurrent unit (GRU) to learn the correlation of data at each time. Fast and accurate evaluation results are output from the stability threshold. At the same time, in order to avoid the influence of the quality of training samples, an improved weighted cross entropy loss function with the K-nearest neighbor (KNN) idea is used to deal with the unbalanced training samples. Through the analysis of an example, it is proved from the data visualization that the TSA method can effectively improve the assessment accuracy and shorten the assessment time.https://www.frontiersin.org/articles/10.3389/fenrg.2022.885673/fulltransient stability assessmentgating spatiotemporal graph neural networkdata visualizationK-nearest neighborgated recurrent unit |
| spellingShingle | Jianfeng Liu Chenxi Yao Lele Chen Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit Frontiers in Energy Research transient stability assessment gating spatiotemporal graph neural network data visualization K-nearest neighbor gated recurrent unit |
| title | Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit |
| title_full | Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit |
| title_fullStr | Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit |
| title_full_unstemmed | Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit |
| title_short | Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit |
| title_sort | time adaptive transient stability assessment based on the gating spatiotemporal graph neural network and gated recurrent unit |
| topic | transient stability assessment gating spatiotemporal graph neural network data visualization K-nearest neighbor gated recurrent unit |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.885673/full |
| work_keys_str_mv | AT jianfengliu timeadaptivetransientstabilityassessmentbasedonthegatingspatiotemporalgraphneuralnetworkandgatedrecurrentunit AT chenxiyao timeadaptivetransientstabilityassessmentbasedonthegatingspatiotemporalgraphneuralnetworkandgatedrecurrentunit AT lelechen timeadaptivetransientstabilityassessmentbasedonthegatingspatiotemporalgraphneuralnetworkandgatedrecurrentunit |