A Novel Multiport Hybrid Wave Energy System for Grid-Connected and Off-Grid Applications

Wei Yu, Ruiyang Ma, Darui Xu, Lei Huang () and Shixiang Wang
Additional contact information
Wei Yu: State Grid Digital Technology Holding Co., Ltd., Beijing 100053, China
Ruiyang Ma: School of the Electrical Engineering, Southeast University, Nanjing 210096, China
Darui Xu: School of the Electrical Engineering, Southeast University, Nanjing 210096, China
Lei Huang: School of the Electrical Engineering, Southeast University, Nanjing 210096, China
Shixiang Wang: School of the Electrical Engineering, Southeast University, Nanjing 210096, China

Sustainability, 2023, vol. 15, issue 3, 1-15

Abstract: Direct drive wave energy converters (DDWECs) have gradually become the mainstream of wave energy converters (WECs). In order to make better use of wave energy, energy storage devices and other renewable energy sources are often used to suppress power fluctuation in DDWECs. However, the addition of other energy sources will increase the complexity of the converter system and the number of power switches. Considering the flexibility of nine-switch converters (NSCs), this paper proposes a novel nine-switch grid-connected/off-grid multiport hybrid wave energy system (HWES). First, the system structure and modulation principle are described. Then, a model for a generator, a grid and energy storage are built, including a control strategy of each part. Finally, a simulation for the grid-connected/off-grid application and an experiment on the off-grid HWES are carried out. The results show that the multiport wave energy system can achieve the objective of stable and reliable power transmission by reducing power devices.

Keywords: direct drive wave energy converter; nine-switch converter; hybrid wave energy system; grid-connected/off-grid application (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/3/2175/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/3/2175/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:3:p:2175-:d:1045537

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().