i-manager’s Journal on Electrical Engineering,
Год журнала:
2024,
Номер
17(4), С. 51 - 51
Опубликована: Янв. 1, 2024
Global
demand
for
electricity
has
risen,
driving
a
shift
toward
sustainable
energy
sources
like
Photovoltaic
(PV)
systems.
Despite
their
efficiency
challenges
compared
to
traditional
fuels,
significant
investments
and
research
are
advancing
the
technology.
This
paper
investigates
multilevel
inverter
topologies,
with
focus
on
Z-source
technology
high-power
PV
applications.
The
study
begins
an
overview
of
growing
alternative
role
inverters
in
enhancing
system
performance.
It
discusses
prominent
such
as
Neutral
Point
Clamped
(NPC)
Cascaded
H-Bridge
(CHB)
inverters,
well
control
techniques
including
Pulse
Width
Modulation
(PWM)
Predictive
Control.
Furthermore,
it
explores
functionality
both
without
systems,
highlighting
ability
provide
voltage
boosting,
fault
tolerance,
improved
power
quality.
For
load
purposes,
Electric
Vehicle
(EV)
charging
been
incorporated.
uses
MATLAB/Simulink
compare
configurations
finds
that
CHB
is
superior
applications
due
its
lower
Total
Harmonic
Distortion
(THD)
reduced
semiconductor
usage.
also
simulates
hybrid
storage
batteries
supercapacitors.
concludes
insights
into
future
directions,
advanced
strategies,
optimization
techniques,
grid
integration
methods.
These
avenues
promise
further
enhancement
efficiency,
reliability,
compatibility
Overall,
this
contributes
selection
optimal
converter
topologies
improving
performance
systems
renewable
electrical
grid.
findings
offer
valuable
researchers,
practitioners,
policymakers
working
future.
Energy Reports,
Год журнала:
2024,
Номер
11, С. 5760 - 5785
Опубликована: Май 28, 2024
With
the
increasing
energy
demands
of
21st
century,
there
is
a
clear
need
for
developing
more
sustainable
method
generation,
distribution,
and
transmission.
Modern
power
grid
infrastructures
are
currently
managing
these
aspects,
though
their
outdated
configuration
results
in
rigid
inefficient
operation.
The
emerging
technology
Smart
Grids
offers
innovative
solutions
to
issues,
utilizing
advanced
communication
computation
structures.
Through
integration
bidirectional
information
flow,
smart
systems,
renewable
sources,
next
generation
grids,
enabling
cooperativity,
automation,
efficiency.
Even
on
small
scales,
proposed
benefits
Grid
substantial
maintaining
use
with
growing
demands.
In
this
survey,
we
provide
comprehensive
overview
technology,
specifically
focusing
challenges
presented
by
cybersecurity,
interoperability,
integration.
These
aspects
were
determined
be
most
prevalent
issues
facing
advancement
Grids,
global
application.
We
discuss
thoroughly,
determining
difficulties
they
induce
literature.
As
such,
survey
intended
reference
other
researchers,
providing
state-of-the-art
approaches
solving
problems,
as
well
offering
insights
ongoing
future
endeavors.
Additionally,
will
highlight
current
state
implementation
through
an
analysis
programs
research
being
conducted
academic
institutions,
industry,
government.
In
this
article,
an
optimal
photovoltaic
(PV)
and
battery
energy
storage
system
with
hybrid
approach
design
for
electric
vehicle
charging
stations
(EVCS)
is
proposed.
The
combines
the
use
of
polar
transformer
networks
(PTNs)
puzzle
optimization
algorithm
(POA);
hence
it
called
as
POA–PTN
approach.
main
objective
to
lessen
station
cost
pollutant
emissions.
proposed
method
minimizing
emissions
annual
PV
EVCS,
which
done
by
POA
predicts
solution
PTN
executed
in
MATLAB
platform,
compared
existing
methods,
including
heap‐based
optimization,
particle
swarm
wild
horse
optimizer
approaches.
technique
demonstrates
superior
performance,
achieving
lowest
net
present
€1.45
×
10
6
2.25
8
g
year
−1
a
shorter
computing
time
13.04
s
other
methods.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 12, 2025
This
research
proposes
an
innovative
framework
integrating
adaptive
Digital
Twin
(DT)
models
with
Multi-Level
Inverter
(MLI)
control
to
improve
energy
efficiency
in
advanced
rehabilitation
systems.
By
utilizing
real-time
monitoring
and
adjustment
of
power
parameters
through
DT
technology,
the
method
achieves
precise
dynamic
devices
such
as
prosthetics
exoskeletons.
The
incorporation
MLI
ensures
smooth
efficient
delivery,
reducing
harmonic
distortion
enhancing
overall
utilization.
Key
outcomes
include
a
14.05%
increase
efficiency,
8.12%
decrease
ripple,
24.03%
improvement
system
response
accuracy,
enabling
optimization
tailored
patient-specific
needs.
Furthermore,
proposed
approach
lowers
operational
costs
by
7.01%
optimized
usage
extended
lifespan.
These
results
highlight
potential
this
advance
systems
integration
digital
modeling.
