Photovoltaic probability prediction method and system based on Bayesian neural network
A neural network and probabilistic prediction technology, applied in biological neural network model, prediction, neural architecture, etc., can solve the large gap between power output and expected, the frequency and voltage of the distribution network exceeds the limit, and the fluctuation of photovoltaic power cannot be judged. To achieve the effect of improving data density, small average interval width, and improving information extraction ability
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Embodiment 1
[0067] Such as figure 1 As shown, a photovoltaic probability prediction method based on Bayesian neural network provided by the present invention includes:
[0068] S1 Obtain weather forecast data of the point to be predicted and historical output data of photovoltaic equipment;
[0069] S2 performs dimensionality reduction processing on the weather forecast data, and obtains characteristic data based on the weather forecast data after the dimensionality reduction processing and historical output data of the photovoltaic equipment;
[0070] S3 brings the characteristic data into the pre-built improved Bayesian neural network model to obtain the photovoltaic output distribution of the points to be predicted.
[0071] The photovoltaic probability prediction method provided by the present invention requires the construction of an improved Bayesian neural network model. The model can be constructed and trained in advance for the same photovoltaic device. After the training is completed, t...
Embodiment 2
[0141] Based on the same inventive concept, the present invention also provides a photovoltaic probability prediction system based on Bayesian neural network, including:
[0142] The acquisition module is used to acquire weather forecast data of the point to be predicted and historical output data of photovoltaic equipment;
[0143] The dimensionality reduction processing module is used to perform dimensionality reduction processing on the weather forecast data, and obtain characteristic data based on the weather forecast data after the dimensionality reduction processing and the historical output data of the photovoltaic equipment;
[0144] The prediction module is used to bring the characteristic data into a pre-built improved Bayesian neural network model to obtain the photovoltaic output distribution of the points to be predicted.
[0145] In an embodiment, the prediction module includes:
[0146] The prediction unit is used to bring the characteristic data into the pre-built improv...
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