Reduction of operations and maintenance costs [23,24] is a key to
the expansion of wind industry destined to grow in the next decades
[28]. Development of control solutions [2,14,22,27] is a valid
approach to reduce these costs.A well designed wind turbine control
system should maximize not only the energy captured from the
wind but also extend the lifetime of turbine components, e.g., the
gearbox. It is known that smoothing the turbine power output is
important in its integration with the electricity grid. All operations
and maintenance considerations have to be properly managed. For
example, for a high wind speed and low electricity demand, a wind
turbine can be operated so that smoothing the rotor speed and
generator torque becomes a priority. Wind turbine control technology
is relatively new, and opportunities exist to improve turbine
performance in the presence of operations and maintenance
constraints. An intelligent wind turbine control system increasing
competitiveness of wind energy is needed.