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Modeling, Experimental Analysis, and Optimized Control of an Ocean Wave Energy Conversion System in the Yellow Sea near Lianyungang Port

Author

Listed:
  • Zhongxian Chen

    (School of Intelligence Manufacturing, Huanghuai University, Zhumadian 463000, China
    Henan Key Laboratory of Smart Lighting, Huanghuai University, Zhumadian 463000, China)

  • Xu Li

    (School of Intelligence Manufacturing, Huanghuai University, Zhumadian 463000, China)

  • Yingjie Cui

    (School of Intelligence Manufacturing, Huanghuai University, Zhumadian 463000, China)

  • Liwei Hong

    (State Grid Langfang Electric Power Supply Company, Langfang 065000, China)

Abstract

In this paper, an ocean wave energy conversion system (OWECS) is modeled and experimented in the Yellow Sea near Lianyungang port, and an optimized control method based on the sliding mode control is proposed to improve the efficiency of OWECS. Firstly, a motion model of a double-buoy OWECS is presented using a complex representation method, and the analysis results indicate that the efficiency of converting ocean wave energy into the outer buoy’s mechanical power is highest in a suitable ocean wave period. Secondly, a double-buoy OWECS is constructed and experimented in the Yellow Sea near Lianyungang port, which verified the correctness of the above analysis results. Lastly, in order to further improve the efficiency of the double-buoy OWECS, a sliding mode control method based on a linear generator is proposed to realize the phase synchronization between the outer buoy and ocean waves, and the simulation results may be beneficial for the next ocean test of the double-buoy OWECS.

Suggested Citation

  • Zhongxian Chen & Xu Li & Yingjie Cui & Liwei Hong, 2022. "Modeling, Experimental Analysis, and Optimized Control of an Ocean Wave Energy Conversion System in the Yellow Sea near Lianyungang Port," Energies, MDPI, vol. 15(23), pages 1-16, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:8788-:d:980248
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    References listed on IDEAS

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    1. Cheng, Yong & Fu, Lei & Dai, Saishuai & Collu, Maurizio & Cui, Lin & Yuan, Zhiming & Incecik, Atilla, 2022. "Experimental and numerical analysis of a hybrid WEC-breakwater system combining an oscillating water column and an oscillating buoy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 169(C).
    2. Viet, N.V. & Xie, X.D. & Liew, K.M. & Banthia, N. & Wang, Q., 2016. "Energy harvesting from ocean waves by a floating energy harvester," Energy, Elsevier, vol. 112(C), pages 1219-1226.
    3. Yuhao Wei & Li Sun & Zhongxian Chen, 2022. "An Improved Sliding Mode Control Method to Increase the Speed Stability of Permanent Magnet Synchronous Motors," Energies, MDPI, vol. 15(17), pages 1-12, August.
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