Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types
The solo duck wave-energy converter (WEC) captures power in a point absorber manner, hence it exhibits high power-capture efficiency within only a narrow bandwidth. Passive control is characterized by a unidirectional power flow, and thus its engineering implementation can be simplified. In this pap...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/12/2070 |
| _version_ | 1811186478509719552 |
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| author | Jinming Wu Yingxue Yao Liang Zhou Malin Göteman |
| author_facet | Jinming Wu Yingxue Yao Liang Zhou Malin Göteman |
| author_sort | Jinming Wu |
| collection | DOAJ |
| description | The solo duck wave-energy converter (WEC) captures power in a point absorber manner, hence it exhibits high power-capture efficiency within only a narrow bandwidth. Passive control is characterized by a unidirectional power flow, and thus its engineering implementation can be simplified. In this paper, two typical passive control strategies, latching and declutching control, are applied to the solo duck WEC to improve its power-capture performance at wave periods larger and smaller than the natural period of the WEC, respectively. Special attention is paid to the peak value of instantaneous WEC performance parameters, including the peak motion excursion, the peak power take-off (PTO) moment, and the peak-to-average power ratio, when the captured power is maximized. Performance differences between the linear and coulomb loads are also investigated. Results show that both latching and declutching control can effectively improve captured power, but also incidentally increase the peak motion excursion and peak-to-average power ratio. When under latching and declutching control, the coulomb load leads to the same maximum relative capture width and peak motion excursion as the linear load, but presents smaller peak PTO moment and peak-to-average power ratio than the linear load, hence making the coulomb load the better choice for the solo duck WEC. |
| first_indexed | 2024-04-11T13:46:08Z |
| format | Article |
| id | doaj.art-58f4f8012bd646558ca73e3fae369bb8 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T13:46:08Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-58f4f8012bd646558ca73e3fae369bb82022-12-22T04:21:01ZengMDPI AGEnergies1996-10732017-12-011012207010.3390/en10122070en10122070Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load TypesJinming Wu0Yingxue Yao1Liang Zhou2Malin Göteman3School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, ChinaShenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, Guangdong, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, ChinaDepartment of Engineering Science, Uppsala University, 75121 Uppsala, SwedenThe solo duck wave-energy converter (WEC) captures power in a point absorber manner, hence it exhibits high power-capture efficiency within only a narrow bandwidth. Passive control is characterized by a unidirectional power flow, and thus its engineering implementation can be simplified. In this paper, two typical passive control strategies, latching and declutching control, are applied to the solo duck WEC to improve its power-capture performance at wave periods larger and smaller than the natural period of the WEC, respectively. Special attention is paid to the peak value of instantaneous WEC performance parameters, including the peak motion excursion, the peak power take-off (PTO) moment, and the peak-to-average power ratio, when the captured power is maximized. Performance differences between the linear and coulomb loads are also investigated. Results show that both latching and declutching control can effectively improve captured power, but also incidentally increase the peak motion excursion and peak-to-average power ratio. When under latching and declutching control, the coulomb load leads to the same maximum relative capture width and peak motion excursion as the linear load, but presents smaller peak PTO moment and peak-to-average power ratio than the linear load, hence making the coulomb load the better choice for the solo duck WEC.https://www.mdpi.com/1996-1073/10/12/2070passive controllatching controldeclutching controlsolo duckload types |
| spellingShingle | Jinming Wu Yingxue Yao Liang Zhou Malin Göteman Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types Energies passive control latching control declutching control solo duck load types |
| title | Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types |
| title_full | Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types |
| title_fullStr | Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types |
| title_full_unstemmed | Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types |
| title_short | Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types |
| title_sort | latching and declutching control of the solo duck wave energy converter with different load types |
| topic | passive control latching control declutching control solo duck load types |
| url | https://www.mdpi.com/1996-1073/10/12/2070 |
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