Construction Method for Input Features of Convolutional Neural Network for Transient Voltage Stability Assessment
Special Topic on Data-Driven Methods for Modernizing Power Systems|更新时间:2025-06-16
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Construction Method for Input Features of Convolutional Neural Network for Transient Voltage Stability Assessment
Automation of Electric Power SystemsVol. 46, Issue 1, Pages: 85-93(2022)
作者机构:
1.华南理工大学电力学院,广东省广州市 510640
2.国网江苏省电力有限公司,江苏省南京市 210024
3.广东电网有限责任公司电力调度控制中心,广东省广州市 510660
作者简介:
基金信息:
National Natural Science Foundation of China-State Grid Corporation of China Joint Fund Project(U1766213);China Southern Power Grid Company Limited(GDKJXM20198236)
ZHU Lin,ZHANG Jian,CHEN Da,et al.Construction Method for Input Features of Convolutional Neural Network for Transient Voltage Stability Assessment[J].Automation of Electric Power Systems,2022,46(1):85-93.
ZHU Lin,ZHANG Jian,CHEN Da,et al.Construction Method for Input Features of Convolutional Neural Network for Transient Voltage Stability Assessment[J].Automation of Electric Power Systems,2022,46(1):85-93. DOI: 10.7500/AEPS20201126003.
Construction Method for Input Features of Convolutional Neural Network for Transient Voltage Stability Assessment
the convolutional neural network (CNN) has been used in the transient voltage stability assessment of the power system. However
the construction method and rationality verification for the input features of CNN have not been thoroughly studied. For the transient voltage stability assessment of an AC/DC system
a CNN based construction method for input features is proposed. Firstly
a two-stage partition scheme is used to reduce the dimensionality and redundancy of the input features
i.e.
the initial partition result is first given according to the system topology and geographic location constraints
then aggregated by the similarity of transient voltage characteristics to obtain the best partition scheme with low dimension and redundancy. Secondly
based on the partition result
the key factors affecting the transient voltage stability of the AC/DC system are investigated and the input features that take in account both the steady-state characteristics and multi-dimensional fault information are constructed. Finally
the constructed input features are applied to the CNN transient voltage assessment model and verified by actual power grid data. Simulation results demonstrate that the proposed method has higher accuracy than the traditional feature selection methods.
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