| For the most professional wind turbine numerical simulation software, it has the disadvantage that only the first order wave load can be calculated. This paper will be based on AQWA and take advantage of its technical advantages for secondary development, by invoking the aerodynamic load in real time and then the analysis of TLP floating offshore wind turbine is realized. In the analysis, the first order and second order wave loads of the floating offshore wind turbine platform calculated by AQWA, and the aerodynamic load in real time invocation is provided by the dynamic link library. The dynamic link library mainly contains the aerodynamic load calculation program compiled by the blade element momentum. Through comparison with FAST, it is known that the method can meet the requirement of analysis. The second order effects of surge and pitch forces are especially obvious. Only the wave load of the floating wind turbine platform is calculated, the influence of aerodynamic load can be ignored, but the influence of the platform motion must be considered. The wave load is mainly affected by surge and pitch, and is almost unaffected of heave. When studying the platform motion, the influence of wind load and second order wave load must be considered，the second order wave load makes the platform motion increase obviously in the whole frequency range. The tension of tendons is more obviously affected by second-order wave loads. |
