Optimal Feedforward Control for Offshore Wind Turbines During Grid Faults

Due to the increased share of (offshore) wind turbines, more stringent power requirements have been established. Importantly, the low-voltage ride-through requirement states that a wind turbine must remain connected to the electrical grid after a short intermittent grid fault. In the industry and academia many solutions have been proposed, but...

On the Load Impact of the Helix Approach on Offshore Wind Turbines: Quantifying and analyzing the fatigue load impact of the helix approach on offshore wind turbine components.

To accelerate the growth of offshore wind power, its Levelised Cost Of Energy (LCOE) must be reduced. A means of reducing the LCOE of offshore wind power is by mitigating the adverse wake effect by employing Wind Farm Control (WFC) for power maximization. A recent WFC technology is the helix approach, which uses Individual Pitch Control (IPC) to...

Linear parameter-varying model identification for flutter prediction

Flutter-induced vibrations can easily cause large structures like airplanes and bridges to fail, which even today makes flutter prediction an important topic of research. To predict flutter, recursive system identification can be used to capture the time-varying behavior using time-invariant techniques combined with the forgetting of old data....

General control framework for shape memory alloy based actuators

Shape Memory Alloy (SMA)-based actuators are versatile actuators with a high power-to-weight ratio. These actuators are ideal for applications such as smart wings and smart rotors. However, SMA-based actuators are generally difficult to control, due to a low bandwidth and a hysteretic and non-linear response. The general control framework, or...

Stabilizing Control System of a Platform of a Buoy for Offshore Wind Assessment

The purpose of this project is to design a control system to stabilize a platform on a buoy. Stabilization of the platform on the buoy is needed for reliable measurements of wind speed and wind direction on sea using LiDAR (Light Detection And Ranging) modules. These modules use the reflection of particles in the air to measure the wind speed...

The Platform and Overall Design of an Actively Stabilised, Manoeuvrable Buoy for Offshore Wind Assessment

It is estimated that in the EU, energy consumption will rise to 4,350 TWh in 2030. Offshore wind farms can provide a solution. The technical wind energy potential for offshore wind farms of the European waters is estimated to be 30,000 TWh annually. For feasibility studies, building and operating offshore wind farms weather assessments are...