학술논문

Solar Radiation Forecasting Using Artificial Neural Networks Considering Feature Selection
Document Type
Conference
Source
2022 IEEE Kansas Power and Energy Conference (KPEC) Kansas Power and Energy Conference (KPEC), 2022 IEEE. :1-4 Apr, 2022
Subject
Power, Energy and Industry Applications
Robotics and Control Systems
Costs
Correlation
Artificial neural networks
Predictive models
Feature extraction
Solar radiation
Reliability
solar forecasting
neural networks
feature selection
Pearson correlation coefficient
multilayer perceptron
Language
Abstract
Due to various factors, including worries about greenhouse gas emissions, supporting government policies, and decreased equipment costs, the expansion of solar-based energy generation, notably in the form of photovoltaics, has accelerated significantly in recent years. Solar panels continue to face several challenges regarding their practical integration and reliability. These concerns originate from the variable nature of the solar resource. Solar generation has inherent variability, which poses problems associated with the costs of supplemental generation and grid reliability. Therefore, high accuracy solar forecasting is required. Several machine learning strategies are broadly employed for solar power forecasting. However, analyzing solar radiation characteristics in order to select the features that have a meaningful correlation between inputs and outputs of machine learning algorithms has received less attention. This study uses a multilayer perceptron (MLP) artificial neural network (ANN) with Bayesian optimization to forecasting solar radiation. The Pearson Correlation Coefficients (PCCs) are used to select effective features. The simulation findings reveal that the accuracy assessment metrics are higher when employing feature selection for prediction.