A simple and high-accuracy method for minute-level water demand forecasting in district metering areas
Haidong Huang,
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Guangqi Que,
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Meiqiong Wu
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et al.
Journal of Hydrology,
Journal Year:
2025,
Volume and Issue:
652, P. 132698 - 132698
Published: Jan. 13, 2025
Language: Английский
Short-Term Photovoltaic Power Forecasting Based on the VMD-IDBO-DHKELM Model
Energies,
Journal Year:
2025,
Volume and Issue:
18(2), P. 403 - 403
Published: Jan. 17, 2025
A
short-term
photovoltaic
power
forecasting
method
is
proposed,
integrating
variational
mode
decomposition
(VMD),
an
improved
dung
beetle
algorithm
(IDBO),
and
a
deep
hybrid
kernel
extreme
learning
machine
(DHKELM).
First,
the
weather
factors
less
relevant
to
(PV)
generation
are
filtered
using
Spearman
correlation
coefficient.
Historical
data
then
clustered
into
three
categories—sunny,
cloudy,
rainy
days—using
K-means
algorithm.
Next,
original
PV
decomposed
through
VMD.
DHKELM-based
combined
prediction
model
developed
for
each
component
of
decomposition,
tailored
different
types.
The
model’s
hyperparameters
optimized
IDBO.
final
forecast
determined
by
combining
outcomes
individual
component.
Validation
performed
actual
from
plant
in
Australia
station
Kashgar,
China
demonstrates.
Numerical
evaluation
results
show
that
proposed
improves
Mean
Absolute
Error
(MAE)
3.84%
Root-Mean-Squared
(RMSE)
3.38%,
confirming
its
accuracy.
Language: Английский
HWDQT: A hybrid quantum machine learning method for ultra-short-term distributed photovoltaic power prediction
Wenhui Zhu,
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Houjun Li,
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Xiande Bu
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et al.
Computers & Electrical Engineering,
Journal Year:
2025,
Volume and Issue:
123, P. 110122 - 110122
Published: Feb. 12, 2025
Language: Английский
An Analytical Approach for IGBT Life Prediction Using Successive Variational Mode Decomposition and Bidirectional Long Short-Term Memory Networks
Kaitian Deng,
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Xianglian Xu,
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Fang Yuan
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et al.
Electronics,
Journal Year:
2024,
Volume and Issue:
13(20), P. 4002 - 4002
Published: Oct. 11, 2024
The
precise
estimation
of
the
operational
lifespan
insulated
gate
bipolar
transistors
(IGBT)
holds
paramount
significance
for
ensuring
efficient
and
uncompromised
safety
industrial
equipment.
However,
numerous
methodologies
models
currently
employed
this
purpose
often
fall
short
delivering
highly
accurate
predictions.
analytical
approach
that
combines
Pattern
Optimization
Algorithm
(POA)
with
Successive
Variational
Mode
Decomposition
(SVMD)
Bidirectional
Long
Short-term
Memory
(BiLSTM)
network
is
introduced.
Firstly,
SVMD
as
an
unsupervised
feature
learning
method
to
partition
data
into
intrinsic
modal
functions
(IMFs),
which
are
used
eliminate
noise
preserve
essential
signal.
Secondly,
BiLSTM
integrated
supervised
purposes,
enabling
prediction
decomposed
sequence.
Additionally,
hyperparameters
penalty
coefficients
optimized
utilizing
POA
technique.
Subsequently,
various
predicted
trained
model,
individual
mode
predictions
subsequently
aggregated
yield
model’s
definitive
final
life
prediction.
Through
case
studies
involving
IGBT
aging
datasets,
optimal
model
was
formulated
its
capability
validated.
superiority
proposed
demonstrated
by
comparing
it
benchmark
other
state-of-the-art
methods.
Language: Английский