Elevator fault diagnosis based on digital twin and PINNs-e-RGCN
Qibing Wang,
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Laien Chen,
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Gang Xiao
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et al.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Dec. 28, 2024
The
rapid
development
of
urbanization
has
led
to
a
continuous
rise
in
number
elevators.
This
elevator
failures
from
time
time.
At
present,
although
there
are
some
studies
on
fault
diagnosis,
they
more
or
less
limited
by
the
lack
data
make
research
superficial.
For
such
complex
special
equipment
as
elevator,
it
is
difficult
obtain
reliable
and
sufficient
train
diagnosis
model.
To
address
this
issue,
paper
first
establishes
numerical
model
vertical
vibration
for
elevators
with
three
degrees
freedom.
obtained
motion
equations
then
used
constraints
acquire
simulated
through
PINNs.
Next,
proposed
e-RGCN
employed
diagnosis.
Finally,
experimental
validation
shows
that
accuracy
participation
digital
twins
exceeds
90%,
reaches
96.61%,
significantly
higher
than
other
comparative
models.
Language: Английский
Internet of Things Application in an Automated Irrigation Prototype Powered by Photovoltaic Energy
Energies,
Journal Year:
2024,
Volume and Issue:
17(9), P. 2219 - 2219
Published: May 5, 2024
Small-scale
agriculture
is
important.
However,
there
are
still
limitations
regarding
the
implementation
of
technologies
in
small-scale
due
to
high
costs
accompanying
them.
Therefore,
it
essential
seek
viable
and
low-cost
solutions
since
insertion
agriculture,
especially
irrigated
guarantees
sustainable
expansion
production
capacity.
The
present
work
applied
Internet
Things
concept
an
automated
irrigation
system
powered
by
photovoltaic
panels.
materials
used
prototype
consisted
Arduino
Uno
R3,
ESP8266
development
board,
a
soil
moisture
sensor,
current
voltage
flow
humidity
temperature
sensor.
was
designed
take
readings
send
them
Adafruit
platform
IO.
Furthermore,
programmed
perform
remote
control,
enabling
this
be
activated
from
distant
points
through
platform.
medium
proved
efficient
for
monitoring
control
system.
This
indicates
that
possible
use
small
systems.
Language: Английский
A Multistage Algorithm for Estimating Electromechanical Modes of Power Systems
IFAC-PapersOnLine,
Journal Year:
2024,
Volume and Issue:
58(13), P. 662 - 667
Published: Jan. 1, 2024
Low-frequency
oscillation
modes
of
electromechanical
origin,
when
they
have
low
damping
rates,
can
affect
the
stability
power
systems.
The
Identification
these
is
essential
to
preserve
continuous
and
safe
operation
This
paper
proposes
a
multistage
algorithm
determine
signals
collected
by
Phasor
Measurement
Units
(PMUs)
in
proposed
composed
four
processes
at
each
stage
an
mode
estimated
evaluated.
Case
studies
real
PMU
signal
were
conducted
discussed.
Language: Английский
Load Margin Assessment of Power Systems using Recurrent Neural Network and Greylag Goose Optimization
IFAC-PapersOnLine,
Journal Year:
2024,
Volume and Issue:
58(13), P. 656 - 661
Published: Jan. 1, 2024
The
complexity
of
operating
power
systems
requires
the
development
methods
capable
assisting
in
system
monitoring.
Voltage
Stability
Margin
or
Load
(LM)
represents
an
index
that
informs
how
much
system's
load
level
can
increase
without
causing
a
case
instability.
LM
is
determined
using
voltage
stability
criteria,
but
low-frequency
modes
arise
with
increasing
and
cause
This
article
proposes
method
based
on
Recurrent
Neural
Networks
(RNNs)
for
monitoring
LM.
Furthermore,
metaheuristic
called
Greylag
Goose
Optimization
applied
to
choose
buses
whose
measurements
will
be
RNN
inputs.
Language: Английский
Design of a resilient wide-area damping controller using time delays
Electrical Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 5, 2024
Language: Английский
PMU-Based Power System Stabilizer Design Using Coati Optimization Algorithm
IFAC-PapersOnLine,
Journal Year:
2024,
Volume and Issue:
58(13), P. 650 - 655
Published: Jan. 1, 2024
Language: Английский
Computing the Load Margin of Power Systems Using Golden Jackal Optimization
IFAC-PapersOnLine,
Journal Year:
2024,
Volume and Issue:
58(13), P. 644 - 649
Published: Jan. 1, 2024
The
Load
Margin
(LM)
is
an
important
stability
index
applied
in
power
systems.
calculation
of
LM
has
always
been
associated
with
voltage
studies,
but
the
increase
load
can
also
cause
emergence
poorly
damped
oscillation
modes
studied
at
small
signals
that
destabilize
system.
This
article
proposes
optimization
model
to
determine
considering
jointly
and
signal
thresholds.
bio-inspired
algorithm
called
Golden
Jackal
Optimization
solve
model.
IEEE
39-bus
test
system
used
for
case
studies
discussions.
Language: Английский