A Convex Economic Model Predictive Control Framework for Hydraulic-Drivetrain Wind Turbines and Farms

In the mission to slow down global warming, the replacement of fossil fuels by renewable energy resources is key. A tipping point in the adoption of renewable energy resources is notable, as they are becoming economically more viable. Offshore wind energy is considered essential in realizing the greenhouse gas emission reduction targets. However...

Energy System Integration and Market Modelling of an Innovative Electric Thermal Energy Storage

The goal of this thesis is to identify under which boundary conditions<br/>there is a business opportunity for an innovative electric thermal energy storage, with regards to the future electricity and heat markets. To meet this target, a novel optimization model has been developed as the main tool for the analysis of the storage and its...

Tractable Reserve Scheduling Formulations for Alternating Current Power Grids with Uncertain Generation

The increasing penetration of wind power generation introduces uncertainty in the behaviour of electric power grids. This work is concerned with the problem of day-ahead reserve scheduling (RS) for power systems with high levels of wind power penetration, and proposes a novel set-up that incorporates an alternating current (AC) Optimal Power...

Optimization of Island Electricity System: Transition to a sustainable electricity supply system on islands through the implementation of a hybrid system including ocean energy technologies

Climate change without adequate countermeasures has become one of humanity's greatest threat. Energy production by means of renewable energy sources is therefore one of the crucial measures that will play a paramount role in reducing the pollutant emissions of fossil fuel dependency. Small islands in particular are an exemplary case of the...

Warping NMPC for online generation and tracking of optimal trajectories

Generation of feasible and optimal reference trajectories is crucial in tracking Nonlinear Model Predictive Control. Especially, for stability and optimality in presence of a time varying parameter, adaptation of the tracking trajectory has to be implemented. General approaches are real-time generation of trajectories or switching between a...

The role of electrical energy storage in a future sustainable electricity grid

The call for lower CO2 emissions has increased the integration of renewable energy sources in the electricity system. However, these intermittent sources do not follow the cycles of demand and are unpredictable in their nature. As the electrical system needs to constantly balance supply and demand, these renewable sources cause problems in the...