Towards carbon Neutrality: Prediction of wave energy based on improved GRU in Maritime transportation

Lv, Zhihan,Dr.1984-Uppsala universitet,Institutionen för speldesign,Extended Energy Big Data and Strategy Research Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China;State Key Laboratory of Media Convergence Production Technology and Systems, Beijing, 100803, China (author)

Towards carbon Neutrality : Prediction of wave energy based on improved GRU in Maritime transportation

Efficient use of renewable energy is one of the critical measures to achieve carbon neutrality. Countries have introduced policies to put carbon neutrality on the agenda to achieve relatively zero emissions of greenhouse gases and to cope with the crisis brought about by global warming. This work analyzes the wave energy with high energy density and wide distribution based on understanding of various renewable energy sources. This study provides a wave energy prediction model for energy harvesting. At the same time, the Gated Recurrent Unit network (GRU), Bayesian optimization algorithm, and attention mechanism are introduced to improve the model's performance. Bayesian optimization methods are used to optimize hyperparameters throughout the model training, and attention mechanisms are used to assign different weights to features to increase the prediction accuracy. Finally, the 1-hour and 6-hour forecasts are made using the data from China's NJI and BSG observatories, and the system performance is analyzed. The results show that, compared with mainstream prediction algorithms, GRU based on Bayesian optimization and attention mechanism has the highest prediction accuracy, with the lowest MAE of 0.3686 and 0.8204, and the highest R2 of 0.9127 and 0.6436, respectively. Therefore, the prediction model proposed here can provide support and reference for the navigation of ships powered by wave energy.

TEKNIK OCH TEKNOLOGIER Maskinteknik Energiteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Energy Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Naturresursteknik Energisystem hsv//swe
ENGINEERING AND TECHNOLOGY Environmental Engineering Energy Systems hsv//eng
TEKNIK OCH TEKNOLOGIER Naturresursteknik Marin teknik hsv//swe
ENGINEERING AND TECHNOLOGY Environmental Engineering Marine Engineering hsv//eng
Bayesian optimization algorithm
Carbon Neutrality
Gated Recurrent Unit Network
Maritime Transportation
Wave Energy Prediction
Carbon
Energy harvesting
Forecasting
Greenhouse gases
Optimization
Renewable energy resources
Wave energy conversion
Attention mechanisms
Bayesian optimization
Bayesian optimization algorithms
Carbon neutralities
Energy prediction
Prediction modelling
Wave energy
Global warming
algorithm
alternative energy
energy resource
wave power
China

By the author/editor: Lv, Zhihan, Dr. ...; Wang, Nana; Lou, Ranaran; Tian, Yajun; Guizani, Mohsen

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Energy Engineeri ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Energy Systems

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Marine Engineeri ...

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