PENG Hanmei,PENG Zijie,SU Yongxin,et al.Short-term Reliability Evaluation of Electricity-Gas Regional Integrated Energy System Based on Least Squares Support Vector Machine[J].Automation of Electric Power Systems,2023,47(4):69-77.
PENG Hanmei,PENG Zijie,SU Yongxin,et al.Short-term Reliability Evaluation of Electricity-Gas Regional Integrated Energy System Based on Least Squares Support Vector Machine[J].Automation of Electric Power Systems,2023,47(4):69-77. DOI: 10.7500/AEPS20220401002.
Short-term Reliability Evaluation of Electricity-Gas Regional Integrated Energy System Based on Least Squares Support Vector Machine
The mutual influence of electricity and gas in the electricity-gas regional integrated energy system makes the reliability evaluation method of model-driven single energy system no longer applicable. On the other hand
due to the natural gas
the calculation cost of short-term reliability evaluation is high. In order to comprehensively solve these two problems
a method is proposed which trains the least squares support vector machine (LSSVM) with the results of the mechanism model
and evaluates the short-term reliability online by the LSSVM. Firstly
component reliability models are established
and an analysis method of failure consequences based on the system equivalent node model is proposed. On this basis
a model-driven short-term reliability evaluation method based on Monte Carlo simulation is proposed
and training samples are constructed. Then
the LSSVM regression model is constructed
and through offline training
the LSSVM model of the mapping between the system states and the short-term reliability indices is obtained
so as to realize real-time short-term reliability evaluation of the system. Finally
the test of electricity-gas regional integrated energy case system verifies the rapidity and accuracy of the proposed method.
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references
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