Active Research Projects
Development of Norwegian wind
power technology 2001-2005
A
cooperation between NTNU, SINTEF and IFE, with financial support
from NFR, Statkraft, Norsk Hydro and Umoe Ryving. The project
aims to develop Norwegian competence and know-how in wind power
technology.
PhD
student Bjarne Næss is involved in the electrical part of this
project modeling doubly fed induction generators for wind for
further experimental validation and investigation of ride
through capability of this type of generator.
More
information on the project can be found at
http://www.energy.sintef.no/prosjekt/vindkraftteknologi/index.asp
Wind Energy Strategic Program
2003-2007
This
is a cooperative project between NTNU, SINTEF and IFE, funded by
the NFR. This project aims to strengthen Norwegian wind energy
competence.
PhD
student Thomas Fuglseth is involved in the electromechanical
part of this project investigating a new way to reduce the
mechanical stresses of the wind turbine and drive train by
coordinated control of generator side converter and independent
pitch control of the blades.
More
information on the project can be found at
http://www.energy.sintef.no/prosjekt/SIP/SIP_JOT/wind.asp
Control of a Doubly-Fed Wind
Generator Connected to an Unbalanced Grid.
This
research is part of a PhD study by Ted Brekken from the
University of Minnesota, and investigates a method of
controlling a doubly-fed induction generator connected to an
unbalanced three-phase grid. This may allow a wind turbine to
continue to produce power, even if the local grid has become
unbalanced. The control reduces 100 Hz torque pulsations, and
also reduces current unbalance.
Reactive power compensation
in wind farms by use of STATCOM
This
research was performed by scientific assistant Jorun Marvik at
the Department of Electrical Power Engineering. A simulation
model of a wind farm with a STATCOM was developed in PSCAD/EMTDC.
Data from the Smøla wind farm was used in the modelling. Vector
control technique was implemented in the STATCOM. The
performance of the STATCOM during voltage dips in the grid was
then tested in simulations.
The control has been implemented in a real converter, and the
performance tested experimentally with a 7.5 kW induction
generator representing a wind mill.
Analysis of power system
dynamics with large scale wind power integration
This
PhD study is being carried out by Jarle Eek and forms NTNU’s
contribution to the Nordic Energy Research Project: “Large
-scale integration of wind energy into the Nordic grid” with
Statnett and Statkraft providing additional funding.
The
objective of the study is to
contribute in building confidence in models used for power
system stability studies including large integration of wind and
identify the constraints to wind power integration in the
Norwegian grid concerning small signal and transient stability
issues. The dissertation will also suggest measures in order to
optimize the integration of wind in the Norwegian grid.
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