YANG Jialong,QIN Chao.Transfer and Correction Method for Static Security Regions Considering Random Load Disturbances[J].Automation of Electric Power Systems,2026,50(20):137-146.
YANG Jialong,QIN Chao.Transfer and Correction Method for Static Security Regions Considering Random Load Disturbances[J].Automation of Electric Power Systems,2026,50(20):137-146.DOI: 10.7500/AEPS20250725004.
Transfer and Correction Method for Static Security Regions Considering Random Load Disturbances
the large-scale grid integration of new loads such as distributed energy resources (DERs) on the user side and electric vehicles (EVs) has intensified the random disturbance characteristics of loads. It is necessary to consider their impacts on static security regions (SSRs) and develop the methods for identifying critical overlimit factors and updating boundaries. To address random disturbances on the load side
this paper proposes a data-model hybrid-driven method for SSR transfer and correction for load change scenarios. This method uses machine learning algorithms to predict SSR coefficients in various load states
constructs transfer boundaries based on the prediction results
and achieves the online correction of SSR boundaries based on system overlimit parameters and an improved loss function
thereby adapting to dominant boundary-change scenarios. Simulation on the IEEE 39-bus system validates the efficiency and accuracy of the proposed transfer and correction method for SSR.
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