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Variable Speed Wind Turbine using Full Conversion
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| Author(s) |
Lars Henrik Hansen; Poul Sørensen; Uwe Schmidt Paulsen |
| Abstract |
Various types of power control strategies have been
suggested for application in variable speed wind turbines.
The usual strategy is to control the power or the torque
acting on the wind turbine shafts. This paper presents an
alternative control strategy, where the rotational speed is
the controlled variable. The implemented control strategy is
based on an off-line optimisation. It has been verified on a
test installation at Risø National Laboratory comprising a
500 kW Nordtank wind turbine and a 630 kW Siemens
frequency converter.
After a short presentation of the test installation the developed
control strategy is described. The presented variable
speed concept is compared to the conventional fixed speed
concept by looking at power quality performance and
flicker emission. As a first step towards wind power plants,
the control strategy supports controllable power output
from the wind turbine. It is demonstrated how the power
output of the test installation can be limited to e.g. 300 kW. |
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| Filename: | Unnamed file |
| Filesize: | 163.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-20 by System |
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