文档介绍：THESIS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY
Modeling of Wind Turbines
for Power System Studies
TOMA´Sˇ PETRU˚
Department of Electric Power Engineering
CHALMERS UNIVERSITY OF TECHNOLOGY
G¨, Sweden 2003
Modeling of Wind Turbines for Power System Studies
TOMA´Sˇ PETRU˚
ISBN 91-7291-306-1
c TOMA´Sˇ PETRU,˚ 2003.
Doktorsavhandlingar vid Chalmers tekniska h¨ogskola
Ny serie nr 1988
ISSN 0346-718x
Technical Report No. 449
ISSN 1651-498x
Department of Electric Power Engineering
School of Electrical Engineering
Chalmers University of Technology
SE-412 96 G¨
Sweden
Telephone + 46 (0)31-772 1000
Chalmers Bibliotek, Reproservice
G¨, Sweden 2003
Modeling of Wind Turbines for Power System Studies
TOMA´Sˇ PETRU˚
Department of Electric Power Engineering
Chalmers University of Technology
Abstract
The power quality impact of wind turbines on the electric grid and the response
of the wind turbines to faults in the electric grid are investigated in this thesis.
A detailed model of a stall-regulated, fixed-speed wind turbine system capable of
predicting the flicker impact on the connected grid is presented pared with
field measurements. The responses of fixed-speed and variable-speed wind turbine
systems to faults in the electric grid are investigated pared with field and
laboratory measurements. Model structures suitable for grid fault response simula-
tions of the fixed-speed and the variable-speed wind turbine systems are suggested.
In the detailed model of the stall-regulated, fixed-speed system, the wind genera-
tion and the aerodynamic conversion are treated in two different ways. A detailed
wind field simulation and an aerodynamic conversion based on wing properties are
compared with a simplified approach that makes use of a single point wind simula-
tion and the wind turbine power curve. A soft shaft representation is used for the
description of the drive train, and the use of different generator plexities
is investigated. Results of the s