Study on Hybrid Energy Storage Control Method for Wave Energy Power Supply System in Comprehensive Observation Buoys

LIU Xu; CHEN Zhen; LIU Zhen; LI Ming

doi:10.11993/j.issn.2096-3920.2024-0070

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LIU Xu, CHEN Zhen, LIU Zhen, LI Ming. Study on Hybrid Energy Storage Control Method for Wave Energy Power Supply System in Comprehensive Observation Buoys[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0070

Citation:

LIU Xu, CHEN Zhen, LIU Zhen, LI Ming. Study on Hybrid Energy Storage Control Method for Wave Energy Power Supply System in Comprehensive Observation Buoys[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0070

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Study on Hybrid Energy Storage Control Method for Wave Energy Power Supply System in Comprehensive Observation Buoys

doi: 10.11993/j.issn.2096-3920.2024-0070

College of Engineering, Ocean University of China, Qingdao 266500, China

Received Date: 2024-04-16
Accepted Date: 2024-05-13
Rev Recd Date: 2024-05-09

Available Online: 2024-11-04

Abstract

Abstract

Wave energy is a widely distributed green renewable energy source capable of providing continuous electrical power to comprehensive observation buoys. However, its rapid fluctuations and high peak-to-average ratio require hybrid energy storage systems to smooth out its energy fluctuations for reliable electrical load supply. These hybrid energy storage systems need to balance power and energy density characteristics, requiring energy management strategies to fully utilize device characteristics and extend system lifespan. This paper focuses on studying energy distribution and power control methods in wave energy supply, proposing a hybrid energy storage system power-sharing control strategy based on Deep Deterministic Policy Gradient (DDPG) to maintain bus stability and leverage the advantages of two energy storage technologies. Simulation and physical experiments demonstrate that this strategy significantly enhances system stability, reduces peak battery charge/discharge power, and keeps bus voltage ripple below 1.6%.
- integrated observation buoys,
- wave energy,
- battery,
- supercapacitors,
- ddpg

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References(21)

References

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