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- Title
A Novel Multiport Hybrid Wave Energy System for Grid-Connected and Off-Grid Applications.
- Authors
Yu, Wei; Ma, Ruiyang; Xu, Darui; Huang, Lei; Wang, Shixiang
- 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.
- Subjects
WAVE energy; GRID energy storage; RENEWABLE energy sources; WAREHOUSES; ENERGY storage
- Publication
Sustainability (2071-1050), 2023, Vol 15, Issue 3, p2175
- ISSN
2071-1050
- Publication type
Article
- DOI
10.3390/su15032175