The Analysis Of Tidal Current Energy Of The Test Field In Zhaitang Island Of Shandong Province Based On FVCOM

As the storage of traditional fossil energy sharply declined, and greatenvironmental problem have been emerging such as acid rain and global warming, thedevelopment and utilization of clean and renewable green energy is imminent. Thisglobal topic sparked a global energy revolution, and various countries has carried on alot of attempts, including solar and wind energy, which have been small scale but stillfar failed to meet human needs. So people concentrate more on the ocean, whichaccounts for70%of the Earth’s surface and has huge energy storage. Our country hasa long coastline and vast water areas, which is in favor of the ocean energydevelopment. Among them the development and utilization of tidal current energy hasbeen gradually on the right track. This article takes the Zhaitang island tidal currenttest field of Shandong Province as a project site, and uses the tidal current numericalmodel to assess the energy distribution and storage of the field.Firstly, the distribution and development trend of the world tidal current energy isintroduced, and summarizes the widely used2D,3D tidal current numerical modelsand software. And, the FVCOM3D tidal current numerical model is emphaticallyintroduced, from its theoretical equations, boundary conditions and appliedcharacteristics. Then, according to the classification the domestic and internationaltidal current power generation devices are introduced, and the horizontal axis tidalcurrent device designed by the China Ocean University is equipment in the test fieldof Zhaitang Island.Owing to lacking the measured data, the nested grid approach is selected to assessthe tidal current energy of Zhaitang Island test field. Respectively, use the ADCIRCand FVCOM model to calculate the larger offshore area of Zhaitang Island. Thenvalidate the accuracy of models based on the measured data of Dongjiakou, compareand analyze the results of these two models. According to the verified tide elevationdata interpolated to get the input open boundary conditions of the test field, useFVCOM model calculate the change of tidal elevation and the3D distribution of theflow rate. At the location of tidal current device, integral the flow rate in the verticaldirection to get the tidal current energy density, and compare with the calculated valueaccording to the common evaluation methods. Without consideration the impact on the surrounding tidal current after thearrangement and mutual influence between the power plant when the latter put anarray of fabrics, the result is still insufficient and the model needs furtherimprovement adjustments.