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Efficiency Improvement of a Hydraulic Power Take-off of Wave Energy Converter Using Variable Displacement Motor

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Alternative Title
Efficiency Improvement of a Hydraulic Power Take-off of Wave Energy Converter Using Variable Displacement Motor
Abstract
Wave energy is known to be a promising energy source for the goal of environmental protection and reducing dependence on fossil fuel sources. Hydraulic power-take-of (HPTO) is a key technology of wave energy converters which determines the energy recovery efciency of the whole system. This paper presents a novel control strategy for HPTO to enhance the regenerated power and energy efciency by using a suitable confguration of a variable displacement hydraulic motor and a generator. A control management strategy was designed to adjust the tilt angle of the hydraulic motor and the generator resistance load to maintain them working in the highest performance area under variable wave conditions. To verify the proposed system, a simulation model was built in AMESim software based on the previous experiment test bench confguration. Simulation results showed that by applying the proposed strategy, the generated energy increased during the working process. Compared with other control methods, the improvement of energy generation efciency of the proposed control management method was approximately 10% higher in the low and medium wave conditions.
Author(s)
도 치 크엉안경관장 찌 둥
Issued Date
2021
Type
Article
Keyword
Wave energy converterHydraulic power take-ofEfciency mapEnergy management strategyHydraulic motorElectric generator
DOI
10.1007/s40684-021-00371-2
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8890
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_crossref_primary_10_1007_s40684_021_00371_2&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Efficiency%20Improvement%20of%20a%20Hydraulic%20Power%20Take-off%20of%20Wave%20Energy%20Converter%20Using%20Variable%20Displacement%20Motor&offset=0&pcAvailability=true
Publisher
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
Location
대한민국
Language
영어
ISSN
2288-6206
Citation Volume
8
Citation Number
5
Citation Start Page
1515
Citation End Page
1527
Appears in Collections:
Engineering > Mechanical and Automotive Engineering
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