An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System
The goal of direct drive ocean wave energy extraction system is to convert ocean wave energy into electricity. The problem explored in this paper is the design and optimal control for the direct drive ocean wave energy extraction system. An optimal control method based on internal model proportion i...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/480916 |
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| author | Zhongxian Chen Haitao Yu Cheng Wen |
| author_facet | Zhongxian Chen Haitao Yu Cheng Wen |
| author_sort | Zhongxian Chen |
| collection | DOAJ |
| description | The goal of direct drive ocean wave energy extraction system is to convert ocean wave energy into electricity. The problem explored in this paper is the design and optimal control for the direct drive ocean wave energy extraction system. An optimal control method based on internal model proportion integration differentiation (IM-PID) is proposed in this paper though most of ocean wave energy extraction systems are optimized by the structure, weight, and material. With this control method, the heavy speed of outer heavy buoy of the energy extraction system is in resonance with incident wave, and the system efficiency is largely improved. Validity of the proposed optimal control method is verified in both regular and irregular ocean waves, and it is shown that IM-PID control method is optimal in that it maximizes the energy conversion efficiency. In addition, the anti-interference ability of IM-PID control method has been assessed, and the results show that the IM-PID control method has good robustness, high precision, and strong anti-interference ability. |
| format | Article |
| id | doaj-art-76d4be4a73a74aa88f430d3396ef4db7 |
| institution | OA Journals |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-76d4be4a73a74aa88f430d3396ef4db72025-08-20T02:07:35ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/480916480916An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction SystemZhongxian Chen0Haitao Yu1Cheng Wen2Engineering Research Center of Motion Control of Ministry of Education, Southeast University, Nanjing 210096, ChinaEngineering Research Center of Motion Control of Ministry of Education, Southeast University, Nanjing 210096, ChinaEngineering Research Center of Motion Control of Ministry of Education, Southeast University, Nanjing 210096, ChinaThe goal of direct drive ocean wave energy extraction system is to convert ocean wave energy into electricity. The problem explored in this paper is the design and optimal control for the direct drive ocean wave energy extraction system. An optimal control method based on internal model proportion integration differentiation (IM-PID) is proposed in this paper though most of ocean wave energy extraction systems are optimized by the structure, weight, and material. With this control method, the heavy speed of outer heavy buoy of the energy extraction system is in resonance with incident wave, and the system efficiency is largely improved. Validity of the proposed optimal control method is verified in both regular and irregular ocean waves, and it is shown that IM-PID control method is optimal in that it maximizes the energy conversion efficiency. In addition, the anti-interference ability of IM-PID control method has been assessed, and the results show that the IM-PID control method has good robustness, high precision, and strong anti-interference ability.http://dx.doi.org/10.1155/2014/480916 |
| spellingShingle | Zhongxian Chen Haitao Yu Cheng Wen An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System The Scientific World Journal |
| title | An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System |
| title_full | An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System |
| title_fullStr | An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System |
| title_full_unstemmed | An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System |
| title_short | An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System |
| title_sort | optimal control method for maximizing the efficiency of direct drive ocean wave energy extraction system |
| url | http://dx.doi.org/10.1155/2014/480916 |
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