08-06-2013, 12:20 PM
Wind Power Plant Performance
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WindCONTROL™
GE’s WindCONTROL system regulates voltage and power
in real time. Like a conventional power plant, the system
supplies reactive power to the grid when it is needed,
regulating system voltage and stabilizing weak grids.
GE provides a simple integrated system of VAR control by
utilizing the dynamic VAR capability inherent in GE's variable
speed turbines as the main VAR source—unlike other systems
that may require add-on capacitors or VAR compensators.
Additionally, GE’s WindCONTROL system can seamlessly
integrate capacitor banks if greater VAR capability is
required at your wind plant.
GE’s WindCONTROL system also controls the power of the
wind plant by utilizing the variable speed technology
employed by the full line of GE’s wind turbines. Each turbine
maintains precise torque and pitch regulation, controlling
power and speed during changing wind and grid conditions.
Conventional power plants include governor droop, controlled
rates of change during power setpoint changes, and controlled
shutdown and startup routines. Although there may be more
than 100 turbines reacting to different wind conditions, GE’s
WindCONTROL system is able to make a wind power
plant operate more like a conventional power plant. The
WindCONTROL system also satisfies many emerging grid
code requirements related to wind plant power response
WindFREE™ Reactive Power
GE’s new WindFREE Reactive Power feature provides smooth
fast voltage regulation by delivering controlled reactive power
through all operating conditions. By supervising individual
wind turbines, the WindCONTROL system ensures that the
reactive power performance of a wind power plant can
meet—and often exceed—the performance of a conventional
(non-wind) power plant.
WindRIDE-THRU™
With GE’s WindRIDE-THRU technology, wind turbines can
remain on-line and feed reactive power to the electric grid
through major system disturbances. This innovative feature
enables wind turbines to meet transmission reliability standards
similar to those demanded of thermal generators.
As wind power plants increase in size and command a larger
share of the power industry’s supply portfolio, the ability to
provide truly uninterrupted service has grown in importance.
Since system disturbances are a fact of life on utility grids
around the world, GE continually develops progressively
more disturbance-tolerant wind power plants.
Our innovative WindRIDE-THRU technology is now offered
in two standard packages, Low Voltage Ride Through (LVRT)
and Zero Voltage Ride Through (ZVRT). The ZVRT package
is compliant with the new U.S. Federal Energy Regulatory
Commission (FERC) ride-through requirements. These
WindRIDE-THRU packages are available to meet various
application needs that satisfy both present and emerging
LVRT requirements.