Designing and testing composite energy storage systems for regulating the outputs of linear wave energy converters

Zanxiang Nie, Xi Xiao, Pritesh Hiralal, Xuanrui Huang, Richard McMahon, Min Zhang, Weijia Yuan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Linear wave energy converters generate intrinsically intermittent power with variable frequency and amplitude. A composite energy storage system consisting of batteries and super capacitors has been developed and controlled by buck-boost converters. The purpose of the composite energy storage system is to handle the fluctuations and intermittent characteristics of the renewable source, and hence provide a steady output power. Linear wave energy converters working in conjunction with a system composed of various energy storage devices, is considered as a microsystem, which can function in a stand-alone or a grid connected mode. Simulation results have shown that by applying a boost H-bridge and a composite energy storage system more power could be extracted from linear wave energy converters. Simulation results have shown that the super capacitors charge and discharge often to handle the frequent power fluctuations, and the batteries charge and discharge slowly for handling the intermittent power of wave energy converters. Hardware systems have been constructed to control the linear wave energy converter and the composite energy storage system. The performance of the composite energy storage system has been verified in experiments by using electronics-based wave energy emulators.

LanguageEnglish
Article number114
Number of pages16
JournalEnergies
Volume10
Issue number1
DOIs
Publication statusPublished - 18 Jan 2017

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Energy Storage
Storage System
Converter
Energy storage
Composite
Testing
Output
Composite materials
Energy
Capacitor
Battery
Capacitors
Charge
Fluctuations
Microsystems
Simulation
Electronic equipment
Hardware
Electronics
Grid

Keywords

  • energy storage
  • linear machine
  • power conversion
  • renewable energy
  • wave energy

Cite this

Nie, Zanxiang ; Xiao, Xi ; Hiralal, Pritesh ; Huang, Xuanrui ; McMahon, Richard ; Zhang, Min ; Yuan, Weijia. / Designing and testing composite energy storage systems for regulating the outputs of linear wave energy converters. In: Energies. 2017 ; Vol. 10, No. 1.
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Designing and testing composite energy storage systems for regulating the outputs of linear wave energy converters. / Nie, Zanxiang; Xiao, Xi; Hiralal, Pritesh; Huang, Xuanrui; McMahon, Richard; Zhang, Min; Yuan, Weijia.

In: Energies, Vol. 10, No. 1, 114, 18.01.2017.

Research output: Contribution to journalArticle

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AU - Zhang, Min

AU - Yuan, Weijia

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