Importance of Dynamic Inflow in Model Predictive Control of Wind Turbines. Issue 30 (2015)

• Record Type: Journal Article
• Authors: Odgaaard, Peter Fogh; Knudsen, Torben; Overgaard, Anders; Steffensen, Henrik; Jørgensen, Marten
• Is Part Of: IFAC-PapersOnLine. Volume 48:Issue 30(2015)
• Page Start: 90
• Page End: 95
• Publication Date: 2015
• Subjects: Wind Turbines -- Model Predictive Control -- Dynamic Inflow; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2015.12.359
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: The efficiency of including dynamic inflow in the model based design of wind turbine controller has been discussed for many years in the wind energy community with out getting to a safe conclusion. This paper delivers a good argument in favor of including dynamic inflow. The main contributions are the use of a very simple inflow model, developed by one of the authors and the use of Pareto fronts to facilitate a safe conclusion. The approach is to compare MPC controllers designed with respectively without including dynamic inflow for a mean wind speed just above rated where this dynamics are most pronounces. For this the well accepted NREL 5MW reference turbine simulated with FAST is used. The main result is a reduction in tower fatigue load at 22% while power error, rotor speed error, generator torque and pitch rate is improved from 2 to 33%.