Experimental Analysis of CENTEC-TLP Self-Stable Platform with a 10 MW Turbine

Abstract

This work evaluates the experimental test results regarding the operational performance of a free-float capable tension leg platform with a 10 MW wind turbine. It covers the platform dynamics in the selected installation area: Ribadeo, Spain. The model and the facility are initially presented, along with the experimental setup and the load cases. The testing campaign includes a software-in-the-loop method to emulate the rotor thrust and the aerodynamic and gyroscopic moments in pitch and yaw. The result sets are structured to start from basic information from system identification cases and continue with responses against regular and irregular waves accompanied by steady and stochastic wind scenarios. The performance in operational and extreme conditions is assessed as well as fault scenarios. The experiments demonstrate auspicious motion dynamics and mooring line behavior when examined against class society rules.

Stress Distribution on the Preliminary Structural Design of the CENTEC-TLP under Still Water and Wave-Induced Loads

“…The selected time step is 0.05 s. This study assumes that the TLP has mooring lines instead of steel tethers. The benchmark values are validated by experimental models presented in [29]. Hence, to show the accuracy of the modeling, meshing, and method used, the results of the ANSYS AQWA are validated with the benchmark model.…”

“…Therefore, the modelling, meshing size, and mass distribution are considered acceptable. The TLP validated experimentally is available in [29]. Figure 10 depicts the response amplitude operators of the platform's motions in the free-floating condition.…”

“…The frequency domain design solution was conducted with in-house code, and NREL's FAST provided the time-domain solution verification. Tank testing was carried out within the ARCWIND project [29]. In the numerical design study, three environmental conditions consisting of rated, above-rated, and 50-year extreme, was published.…”

Experimental Challenges and Modelling Approaches of Floating Wind Turbines

“…This concept improves the SIL system by incorporating the moments generated by the aerodynamic and gyroscopic effects. Within the ARCWIND project, the multi-propellers system is utilized to test the CENTEC-TLP [5,17,62,121] and the SATH10 semi-submersible [122]. At the Instituto Hidraulica Cantabria (IHC), an actuator consisting of six drone propellers is developed by Urbán and Guanche [60] and utilized to test the TELWIND FWT [123].…”

“…These designs were mostly developed through a collaborative effort between industry and academia. LIFES50+ [14,15], IN-NWIND.EU [16], and ARCWIND [17] exemplify the interdisciplinary cooperative research between academia and industry in advancing floating wind technologies.…”