Session: 01-01-02 Offshore Platforms-II

Paper Number: 125502

125502 - Analysis of Hydrodynamic Performance and Mooring Dynamic Response of Offshore Dual-Module Floating Photovoltaic Platform 

In recent years, renewable energy has become a global energy development trend. As an emerging solar photovoltaic technology, offshore floating photovoltaics(FPV) have broad prospects. In order to explore the technical problems of offshore multi-module floating photovoltaics and break through technical barriers, we conducted a study on the hydrodynamic performance of an offshore dual-module floating photovoltaic platform. Based on the hydrodynamic analysis software AQWA, the Morrison model and surface element model of the floating photovoltaic platform were established. The surface element model is used for frequency domain calculation based on the accuracy.  Frequency domain analysis includes platform RAOs, hydrodynamic interference characteristics and masking effects. Since the time domain calculation of the surface element model cannot realize the variable waterline calculation, the Morrison model is used. Considering hydrodynamic interference, a time-domain motion response sensitivity analysis was conducted on the dual-module photovoltaic platform to explore the impact of wave direction changes on structural characteristics. Considering that offshore floating photovoltaics are installed in shallow water environments, shallow water mooring is one of the key technologies in the design of photovoltaic platforms. Since AQWA uses a quasi-static method to calculate the mooring line, which ignores the influence of the inertial force. Therefore, the professional mooring hydrodynamic analysis software Orcaflex and a self-compiled program were used to analyze the impact of chain dynamics on the mechanical properties under shallow water mooring. The above analysis of the hydrodynamic performance and mooring dynamic response of offshore dual-module floating photovoltaics provides support for the design and application of offshore floating photovoltaics.

Presenting Author: Fanlei Wu China Ship Scientific Research Center

Presenting Author Biography: Mainly engaged in marine engineering hydrodynamic research work

Authors:

Fanlei Wu China Ship Scientific Research Center
Kai Zhang China Ship Scientific Research Center
Xiaoming Cheng Taihu Laboratory of Deepsea Technological Science
Jingxiang Wang China Ship Scientific Research Center
Chunmei Xie China Ship Scientific Research Center
Jun Yu China Ship Scientific Research Center
Yujie Gu Taihu Laboratory of Deepsea Technological Science