QIAO Yanhui,HAN Shuang,XU Yanping,et al.Analysis Method for Complementarity Between Wind and Photovoltaic Power Outputs Based on Weather Classification[J].Automation of Electric Power Systems,2021,45(2):82-88.
QIAO Yanhui,HAN Shuang,XU Yanping,et al.Analysis Method for Complementarity Between Wind and Photovoltaic Power Outputs Based on Weather Classification[J].Automation of Electric Power Systems,2021,45(2):82-88. DOI: 10.7500/AEPS20200812006.
Analysis Method for Complementarity Between Wind and Photovoltaic Power Outputs Based on Weather Classification
The quantitative analysis method of the complementarity between wind power output and photovoltaic power output based on weather classification can scientifically guide the optimal dispatch of wind-photovoltaic complementary power generation systems. In order to overcome the shortcomings of the existing weather classification methods that principal component analysis cannot extract nonlinear features and t-distributed stochastic neighbor embedding (t-SNE) based algorithm does not consider the actual distribution of samples
a weather classification and complementarity analysis method for wind and photovoltaic power output based on the kernel principal component analysis (KPCA) and the self-organizing feature map (SOFM) neural network is proposed. Firstly
the KPCA is employed to extract the feature vectors based on numerical weather prediction data. Then
a weather pattern classification model based on the SOFM neural network is constructed by using the feature vectors as input conditions. Finally
Based on the evaluation indicators for complementary ratio of fluctuation and complementary ratio of ramp
the complementary degree and the optimal grid-connected capacity ratio of wind and photovoltaic power output under different weather patterns are quantitatively analyzed from two perspectives of fluctuation and ramp. The results demonstrate that the fluctuation complementarity and the optimal grid-connected capacity ratio of wind and photovoltaic power output have obvious difference under different weather patterns
which verifies the effectiveness of the proposed method.
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