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

被引：0
|
作者：
Yu, Wei [1 ]
Ma, Ruiyang [2 ]
Xu, Darui [2 ]
Huang, Lei [2 ]
Wang, Shixiang [2 ]
机构：
[1] State Grid Digital Technol Holding Co Ltd, Beijing 100053, Peoples R China
[2] Southeast Univ, Sch Elect Engn, Nanjing 210096, Peoples R China
来源：
SUSTAINABILITY | 2023年 / 15卷 / 03期
基金：
中国国家自然科学基金;
关键词：
direct drive wave energy converter; nine-switch converter; hybrid wave energy system; grid-connected; off-grid application; CONVERSION SYSTEM; MANAGEMENT; CONVERTER;
D O I：
10.3390/su15032175
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
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页数：15
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