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| Cathodic Protection Technology for Offshore Wind Power Foundation |
| Received:October 08, 2023 Revised:November 08, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.01.012 |
| KeyWord:offshore wind power foundation sacrificial anodecathodic protection applied current cathodic protection numerical simulation coupling effect real sea test |
| Author | Institution |
| HE Yifan |
CNOOC Changzhou Paint and Coating Industry Research Institute Co., Ltd., Jiangsu Changzhou , China |
| JIN Xi |
CNOOC Changzhou Paint and Coating Industry Research Institute Co., Ltd., Jiangsu Changzhou , China |
| SUN Jixing |
CNOOC Changzhou Paint and Coating Industry Research Institute Co., Ltd., Jiangsu Changzhou , China |
| WANG Huiyu |
CNOOC Changzhou Paint and Coating Industry Research Institute Co., Ltd., Jiangsu Changzhou , China |
| QIN Tienan |
Dalian Kingmile Marine Technology Co., Ltd., Liaoning Dalian , China |
| SUN Zhaoheng |
Bohai Oil Harbor Construction Engineering Co., Ltd., Tianjin , China |
| CHEN Wu |
CNOOC Changzhou Paint and Coating Industry Research Institute Co., Ltd., Jiangsu Changzhou , China |
| HUANG Bo |
CNOOC Changzhou Paint and Coating Industry Research Institute Co., Ltd., Jiangsu Changzhou , China |
| XU Yunze |
Dalian University of Technology, Liaoning Dalian , China |
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| Abstract: |
| The work aims to investigate the optimal protection scheme for offshore wind power foundation under the three working conditions of external single impressed current catholic protection (ICCP) system, single sacrificial anode cathodic protection (SACP), and joint protection of SACP and ICCP system. Numerical simulation calculations were carried out for three working conditions to compare the protection effect of the cathodic protection system on the wind power foundation under different working conditions. After determining the optimal working condition, a large-scale model was constructed to carry out real sea test experiments under the optimal working condition.The potential intervals of wind power foundation protection under the three working conditions of single SACP, single ICCP system, and combined SACP and ICCP system were –926~–881 mV, –1 018~–985 mV, and –984~–963 mV, respectively. The distribution of conduit rack potentials in the real sea test experiments was –1 029~–908 mV. The numerical simulation results were basically consistent with the experimental results. The protection effect is best when SACP and ICCP systems are combined. With the gradual increase of output current, the wind power foundation model gradually tends to over-protection state. |
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