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Improved Super-resolution Perception Convolutional Neural Network for Photovoltaics Missing Data Recovery by Xinglin Liu; Chao Huang; Long Wang; Xiong Luo is a Engineering article available to read on EtoBox.

What is Improved Super-resolution Perception Convolutional Neural Network for Photovoltaics Missing Data Recovery about?

Errors in data measurement and recording can induce data missing for photovoltaic (PV) operation. Flawed data, however, can greatly impair the performance of data-driven models such as the accuracy of PV generation forecasting. The super-resolution perception convolutional neural network (SRPCNN) is a powerful tool in data reconstruction from low frequency to high frequency and it can be used for data recovery. The SRPCNN, however, has problems in dealing with null values for PV data recovery. To solve this problem, an improved SRPCNN model, which integrates naïve SPRCNN and linear interpolation, is proposed in this paper. Experiments are carried out under 5 different missing rates. The improved model can handle null values better, and can have a better accuracy improvement than the naïve SPRCNN and other methods. To further improve the data recovery performance, a modified whale optimization algorithm is deployed to optimize the hyperparameters of SPRCNN. To verify the efficiency of the proposed model, extensive numerical experiments on different types of data from an actual PV power plant have been conducted by comparing with benchmarks. Compared with the naïve SRPCNN, the RMSE a

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Author

Xinglin Liu; Chao Huang; Long Wang; Xiong Luo

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)