Powering Europe - European Wind Energy Association

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To enable a power system to integrate large amounts
of wind power, optimised wind power operation, management
and control are necessary.
The pooling of several wind farms into clusters in the
GW range will make new options feasible for an optimised
integration of variable generation into electricity
supply systems. New concepts for cluster management
will include the aggregation of geographically
dispersed wind farms according to various criteria,
for the purpose of an optimised network management
and optimised (conventional) generation scheduling.
The clusters will be operated and controlled like large
conventional power plants.
In view of the probable wind power forecast errors, the
difference between forecast and actual supply must
be minimised by means of control strategies of wind
chApTEr 3 powersystemoperationswithlargeamountsofwindpower
farm clusters to ensure the generation schedule is
maintained. Power output will in this case be controlled
in accordance with the schedule determined by the
short-term forecasts. This strategy has a large impact
on the operation of the wind farms and requires announced
and actual generation to be matched on a
minute-to-minute basis. The schedule should be carried
out within a certain tolerance band (which should
itself be determined by forecast error). Time-variable
set points should be constantly generated and refreshed
for optimum interaction between wind farms
and wind farm cluster management. It is assumed
that short-term forecasting for wind farms and cluster
regions is used and continually updated for this kind
of operation management. Wind farm control strategies
include:
• Limitation of power output
• Energy control
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