Electronics,
Journal Year:
2024,
Volume and Issue:
14(1), P. 48 - 48
Published: Dec. 26, 2024
This
paper
addresses
the
challenge
of
developing
a
cost-effective
and
efficient
soft-starting
method
for
doubly
fed
induction
machines
(DFIMs),
critical
requirement
various
industrial
applications,
such
as
pumped-storage
hydropower.
The
research
aims
to
improve
previously
developed
starting
by
introducing
rotor-side
synchronization
technique
at
standstill
conditions,
which
simplifies
process
eliminates
need
additional
equipment
autotransformers,
resistors,
or
auxiliary
converters.
proposed
begins
with
stator
winding
being
directly
from
power
system,
while
converter
adjusts
voltage
frequency
achieve
synchronization.
Once
synchronized,
rotor
is
gradually
reduced
converter,
resulting
in
smooth
acceleration
machine.
methodology
validated
through
combination
simulations
experimental
testing,
demonstrating
effectiveness
approach.
results
reveal
startup
dynamics,
significant
reductions
electrical
stress,
operational
complexity,
sizing
requirements
compared
existing
methods.
Notably,
magnetizing
current
supplied
system
stator,
reducing
burden
on
60%
previous
method.
conclusions
highlight
method’s
robustness
its
potential
superior
alternative
DFIM
techniques.
Energy Reports,
Journal Year:
2024,
Volume and Issue:
11, P. 3202 - 3223
Published: March 8, 2024
As
the
world
witnesses
a
surge
in
adoption
of
renewable
energy
sources
to
meet
surging
global
power
demands,
dynamic
and
intermittent
nature
these
emerges
as
significant
hurdle.
This
article
extensively
explores
potential
advanced
control
systems,
storage
technologies,
resources
fortify
stability
within
systems.
Advanced
methodologies
are
strategically
amalgamated
with
deployment
utilization
energy,
advance
reliability,
predictability,
sustainability
The
analysis,
dedicated
focus
on
Input-to-input-to-state
(ISS),
is
conducted
meticulously
by
applying
Lyapunov
function
Reciprocally
Convex
Approach,
resulting
an
impressive
rate
23.6%.
Additionally,
Positive
Realness
substantiated
extracting
Linear
Matrix
Inequalities
(LMI)
context
Enhancing
Grid
Stability
Wind
Power.
study
places
particular
emphasis
evaluating
ISS
Passivity
both
delayed
non-delayed
specific
neutral
time-delay
evaluation
involves
selection
appropriate
Lyapunov-Krasovskii
Functional
(LKF)
its
derivation,
coupled
integration
reciprocally
convex
methods,
descriptive
approach,
Jensen
inequality.
outcomes
analyses
shed
light
causes
excess
effective
storage,
along
highlighting
synergistic
impact
integrating
controlling
grid
frequency,
voltage,
real
time.
also
accentuates
robustness
achieved
through
Enhanced
mitigation
Reduced
Fluctuations,
especially
sources.
