Frontiers in Energy Research,
Journal Year:
2024,
Volume and Issue:
12
Published: Nov. 28, 2024
Fault
diagnosis
of
wind
turbine
gearbox
is
essential
to
ensure
operational
efficiency
and
prevent
costly
downtime.
However,
conventional
deep
learning
models
often
struggle
with
domain
shift,
where
the
distribution
testing
data
differs
from
that
training
data.
This
issue
more
pronounced
out-of-distribution
inputs—data
outside
conditions
model
was
trained
on.
These
challenges
can
lead
unreliable
diagnostic
results
potentially
hazardous
situations.
To
address
this,
we
introduce
Spectral
Normalization
Gaussian
Process
methods
into
Res2Net
framework
enhance
its
ability
detect
improve
model’s
assess
distance
between
test
handle
due
both
epistemic
aleatory
uncertainty.
The
experiment
collected
raw
vibration
signals
under
varied
conditions.
Unknown
faults
simulated
uncertainty,
while
noisy
samples
resulted
in
were
converted
images
using
Gramian
Angular
Difference
Field
transformation.
resulting
then
fed
model,
enhanced
Process.
outputs
include
classification
corresponding
uncertainty
values
based
on
awareness.
With
quantified
values,
reflect
trustworthiness
results.
By
comparing
these
predefined
thresholds,
it
possible
distinguish
whether
are
or
not.
Experiments
have
proven
superiority
Distance-Aware
detection
fault
diagnosis.
International Journal of Green Energy,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 17
Published: Jan. 7, 2025
This
research
proposes
a
new
method
for
wind
turbine
fault
detection
using
hybrid
deep
neural
networks,
along
with
explainable
Artificial
Intelligence
(XAI)
methods.
unique
combination
delivers
more
accurate
and
interpretable
model
to
enable
improved
maintenance
strategies
efficiency
in
operations.
The
novelty
of
this
work
is
that
it
an
intact
methodology
utilizing
AI
turbines
overcome
the
known
weaknesses
existing
methods
terms
transparency
interpretability.
aims
create
elaborate
system
capable
accurately
predicting
faults
providing
engineers
transparent
comprehendible
explanations
regarding
decisions
undertaken,
which
will
further
contribute
learning.
observations
were
made
during
numerous
simulations
tests,
proposed
XAI-driven
indicated
significant
increase
99%
accuracy
rate
maintained
level
effectiveness
upkeep.
approach
expected
reduce
frequency
operation
disruptions
put
as
standard
reliability
industry,
nests
potential
novel
industrial
asset
would
significantly
redefine
rules
field.
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(2), P. 921 - 921
Published: Jan. 18, 2025
Bearing
fault
diagnosis
in
actual
working
conditions
often
faces
the
problem
that
unknown
type
faults
cannot
be
identified,
which
seriously
restricts
practical
application
of
technology.
To
solve
this
problem,
paper
proposes
a
bearing
method
based
on
transfer
learning.
Firstly,
designs
feature
extraction
network,
Multi-scale
Convolution-Convolutional
Reconstruction
Network
(MCRCNet),
incorporates
multi-scale
module
to
extract
features
at
multiple
scales,
thereby
enhancing
ability
key
information.
Secondly,
an
improved
convolutional
reconstruction
AcConv
(Adaptive
Convolution
reconstruction),
highlights
information
and
reduces
redundant
by
reconstructing
map.
Furthermore,
also
modifies
loss
function
improve
performance
case
data
imbalance,
introduces
Wasserstein
distance
optimize
adversarial
training
process.
The
proposed
is
experimentally
verified
Case
Western
Reserve
University,
Jiangnan
laboratory
datasets.
experimental
results
show
has
good
most
tasks
generalization
ability,
provides
feasible
solution
for
research
diagnosis.
Sensors,
Journal Year:
2025,
Volume and Issue:
25(3), P. 720 - 720
Published: Jan. 24, 2025
Wind
turbines
are
predominantly
situated
in
remote,
high-altitude
regions,
where
they
face
a
myriad
of
harsh
environmental
conditions.
Factors
such
as
high
humidity,
strong
gusts,
lightning
strikes,
and
heavy
snowfall
significantly
increase
the
vulnerability
turbine
blades
to
fatigue
damage.
This
susceptibility
poses
serious
risks
normal
operation
longevity
turbines,
necessitating
effective
monitoring
maintenance
strategies.
In
response
these
challenges,
this
paper
proposes
novel
fault
detection
method
specifically
designed
for
analyzing
wind
blade
noise
signals.
integrates
Tyrannosaurus
Optimization
Algorithm
(TROA)
with
support
vector
machine
(SVM),
aiming
enhance
accuracy
reliability
detection.
The
process
begins
careful
preprocessing
raw
signals
collected
from
during
actual
operational
extracts
vital
features
three
key
perspectives:
time
domain,
frequency
cepstral
domain.
By
constructing
comprehensive
feature
matrix
that
encapsulates
multi-dimensional
characteristics,
approach
ensures
all
relevant
information
is
captured.
Rigorous
analysis
selection
subsequently
conducted
eliminate
redundant
data,
thereby
focusing
on
retaining
most
significant
classification.
A
TROA-SVM
classification
model
then
developed
effectively
identify
faults
blades.
performance
validated
through
extensive
experiments,
which
indicate
recognition
rate
98.7%.
higher
than
traditional
methods,
SVM,
K-Nearest
Neighbors
(KNN),
random
forest,
demonstrating
proposed
method’s
superiority
effectiveness.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Dec. 28, 2024
In
real
engineering
scenarios,
the
complex
and
variable
operating
conditions
of
mechanical
equipment
lead
to
distributional
differences
between
collected
fault
data
training
data.
This
distribution
difference
can
failure
deep
learning-based
diagnostic
models.
Extracting
generalized
knowledge
from
source
domain
in
scenarios
where
target
is
not
visible
key
solving
this
problem.
To
end,
paper,
we
propose
a
generalization
network
for
diagnosing
bearing
faults
under
unknown
conditions,
i.e.,
Feature
Decoupled
Integrated
Domain
Generalization
Network
(FDIDG).
First,
"feature
decoupling"
algorithm
uncover
representations
features
multiple
domains.
The
aims
explore
by
shrinking
domains
further
generalize
reduce
coupling
conditions.
Second,
accuracy
model
improved
adopting
multi-expert
integration
strategy
decision-making
stage
utilizing
domain-private
negative
impact
edge
samples
on
diagnosis.
We
conducted
several
sets
cross-domain
experiments
both
public
private
datasets,
results
show
that
FDIDG
has
excellent
capabilities.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(13), P. 4186 - 4186
Published: June 27, 2024
Regarding
the
difficulty
of
extracting
acquired
fault
signal
features
bearings
from
a
strong
background
noise
vibration
signal,
coupled
with
fact
that
one-dimensional
(1D)
signals
provide
limited
information,
an
optimal
time
frequency
fusion
symmetric
dot
pattern
(SDP)
bearing
feature
enhancement
and
diagnosis
method
is
proposed.
Firstly,
are
transformed
into
two-dimensional
(2D)
by
algorithm
SDP,
which
can
multi-scale
analyze
fluctuations
at
minor
scales,
as
well
enhance
features.
Secondly,
bat
employed
to
optimize
SDP
parameters
adaptively.
It
effectively
improve
distinctions
between
various
types
faults.
Finally,
model
be
constructed
deep
convolutional
neural
network
(DCNN).
To
validate
effectiveness
proposed
method,
Case
Western
Reserve
University's
(CWRU)
dataset
laboratory
experimental
platform
were
used.
The
results
illustrate
accuracy
100%,
proves
feasibility
method.
By
comparing
other
2D
transformer
methods,
achieves
highest
in
diagnosis.
validated
superiority
methodology.