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Karl Merz

Research Scientist

Karl Merz

Research Scientist

Karl Merz
Phone: 918 01 670
Department: Energy Systems
Office: Trondheim

Publications and responsibilities

Publications

Publication

An engineering model for dynamic wind power plant flow

https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1529194

An engineering method is developed for the prediction of dynamic flow through a wind power plant, in the presence of turbine control actions. The model is composed of a simplified steady-state boundary layer model of velocity deficits and turbulence, a dynamic wake model relating the rotor induction...

Authors Merz Karl Otto
Year 2017
Type Journal publication
Publication

Lidars for Wind Tunnels - an IRPWind Joint Experiment Project

https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1529142

Measurement campaigns with continuous-wave Doppler Lidars (Light detection and ranging) developed at DTU Wind Energy in Denmark were performed in two very different wind tunnels. Firstly, a measurement campaign in a small icing wind tunnel chamber at VTT in Finland was performed with high frequency ...

Authors Sjöholm Mikael Vignaroli Andrea Angelou Nikolas Nielsen Morten Busk Mann Jakob Mikkelsen Torben Bolstad Hans Christian Merz Karl Otto Sætran Lars Roar Mühle Franz Volker Tiihonen Mikko Lethomäki Ville
Year 2017
Type Journal publication
Publication

Roadmap to the multidisciplinary design analysis and optimisation of wind energy systems

https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1408029

A research agenda is described to further encourage the application of Multidisciplinary Design Analysis and Optimisation (MDAO) methodologies to wind energy systems. As a group of researchers closely collaborating within the International Energy Agency (IEA) Wind Task 37 for Wind Energy Systems Eng...

Authors Perez-Moreno S. Sanchez Zaaijer M.B. Bottasso C.L. Dykes K. Merz Karl Otto Réthoré P-E Zahle F.
Year 2016
Type Journal publication
Publication

Basic controller tuning for large offshore wind turbines

https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1387909

Wind turbines are controlled through the electrical torque on the generator and the pitch of the blades. The tuning of the controller determines the dynamics of the system, which can then be good (smooth yet responsive) or bad (ineffective or unstable). A methodical investigation was conducted to de...

Authors Merz Karl Otto
Year 2016
Type Journal publication
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