The
trials
suggest
that
the
“intelligent”
bolt-on
concept
could
cut
loading
on
blades
“significantly”
compared
with
using
pitch
control
alone,
with
the
added
benefit
of
sharply
improving
a
turbine’s
cost
of
energy
(CoE).
“We
are
always
trying
to
reduce
our
designs’
CoE
and
there
are
a
number
of
different
ways
of
doing
this
that
are
looking
particularly
promising
as
wind
turbines
get
larger
and
larger,”
says
Vestas
turbine
verification
specialist
Niels
Anker
Olesen.
“There
are
early
indications
that
having
active
pitch
control
on
very
large
blades
may
not
be
the
best…
