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Dissertation
Development of feedback control for energy policy design to guarantee sustainable solar and wind power investment growth
(2021)
Energy transition in the power sector is one of the main pathways to achieving the climate targets. In order to stimulate renewable power development, regulatory policies play a vital role. However, these policies have so far attained only partial results or unexpected consequences due to the unsuitable designs. Therefore, the study addresses the question, “How do regulatory policies have to be designed in order to create a favorable environment for renewable power development?”
This work proposes to use feedback ...
Dissertation
Load Reducing Control for Wind Turbines: Load Estimation and Higher Level Controller Tuning based on Disturbance Spectra and Linear Models
(2017-05-08)
The aim of this work is to demonstrate an efficient and pragmatic approach for design and optimization of load reducing controllers for wind turbines. Load reducing control means that, besides the classical rotor speed control loop, load or oscillation signals are included as additional input signals into the controller. Thereby, a multiple-input-multiple-output (MIMO) control design problem arises.
While the basic concepts of load reducing control and the achievable load reductions are essentially known from ...
Dissertation
Regionalisierung von E-Kfz-Ladestellen in Szenarien für den zukünftigen Ausbau in Deutschland
(2023-04)
Ein wesentlicher Baustein zur Senkung der CO2-Emissionen im Verkehrssektor ist die Elektrifizierung des Individualverkehrs, wobei die schnell wachsende Lade-infrastruktur Auswirkungen auf das Stromnetz hat. Netzberechnungen erfordern die räumliche Verortung von zukünftigen Ladestellen. Die vorliegende Arbeit mo-delliert dafür Heimladestellen und öffentlich zugängliche Ladestellen holistisch und punktgenau, und ist für alle Gemeinden in Deutschland anwendbar. Zunächst wird die Anzahl an Elektrofahrzeugen und Ladestellen ...