Journal of Engineering and Sciences,
Journal Year:
2024,
Volume and Issue:
3(1), P. 26 - 35
Published: June 4, 2024
This
study
presents
a
comprehensive
investigation
into
five
distinct
combinations
of
wind
turbine
configurations,
each
integrating
Savonius
and
Darrieus
rotors
on
single
shaft.
The
studied
configurations
include
Single
Stage
H-Darrieus,
Two-Stage
D-Darrieus,
Helical
Savonius,
H-Darrieus
in
series.
Our
research
uses
Computational
Fluid
Dynamics
(CFD)
simulations
conducted
using
ANSYS
Fluent
to
meticulously
analyze
optimize
these
designs.
Through
rigorous
computational
modeling
flow
analysis,
we
aim
elucidate
the
performance
characteristics,
including
torque
generation,
nature,
time,
power
output,
for
configuration.
Following
thorough
comparison,
our
findings
highlight
double-stage
D
as
exhibiting
superior
attributes.
contributes
valuable
insights
advancement
multi-directional
technology,
facilitating
enhanced
energy
harnessing
from
varying
conditions.
Engineering Reports,
Journal Year:
2025,
Volume and Issue:
7(1)
Published: Jan. 1, 2025
ABSTRACT
The
increasing
global
energy
demand
driven
by
climate
change,
technological
advancements,
and
population
growth
necessitates
the
development
of
sustainable
solutions.
This
research
investigates
design,
modeling,
simulation
a
2.5
MW
solar‐wind
hybrid
renewable
system
(SWH‐RES)
optimized
for
domestic
grid
applications.
A
survey
conducted
across
450
households
identified
total
2.3
MW,
with
distinct
day
night
usage
profiles.
In
response,
consisting
1.5
solar
park
1
wind
unit
was
designed
to
ensure
continuous
power
supply.
modeled
simulated
using
MATLAB,
its
performance
evaluated
through
detailed
Total
Harmonic
Distortion
(THD)
analysis.
addresses
critical
need
high‐quality
supply
designing,
simulating
meet
surveyed
load,
while
also
reducing
THD
acceptable
levels
improved
quality
stability.
results
demonstrated
significant
reduction
in
THD,
voltage
decreasing
from
45.48%
26.20%
current
8.32%
2.88%
after
implementing
filtering
components.
These
findings
underscore
effectiveness
proposed
SWH‐RES
providing
stable,
addressing
growing
e-Prime - Advances in Electrical Engineering Electronics and Energy,
Journal Year:
2024,
Volume and Issue:
9, P. 100680 - 100680
Published: July 14, 2024
This
article
presents
the
complete
design
of
a
nonlinear
control
system
for
multiple
stationary
bikes
connected
to
mechanical
energy
conversion
equipped
with
squirrel
cage
induction
generators
(SIGs)
linked
AC/DC
converters.
The
primary
objective
this
study
is
investigate
feasibility
powering
treadmills
using
DC
bus
via
DC/AC
novelty
our
approach
lies
in
integration
new
strategy
achieve
objectives
within
gym
microgrid
environment,
and
an
management
algorithm
ensure
flow
between
intermittent
generation
considered,
somewhat
random,
demand.
composed
several
subsystems:
i)
inverters
acting
as
power
sources;
ii)
Li-ion
battery-based
storage
interfaced
through
Buck-Boost
converter;
iii)
electromechanical
loads,
including
treadmills,
powered
by
converters,
addition
other
loads.
main
are
follows:
a)
each
bike
extracts
from
network
regulating
torque
applied
athlete,
ensuring
that
follows
reference
torque;
b)
treadmill's
speed
must
follow
generated
based
on
athlete's
condition;
c)
protection
monitoring
its
current
voltage;
d)
all
mentioned
achieved
while
maintaining
voltage
at
value.
To
these
objectives,
Lyapunov
theory
used
controllers.
A
formal
analysis
conducted
assess
performance
studied
system.
system's
demonstrated
MATLAB/Simulink
environment.
Numerous
simulations
demonstrate
every
achieved.
Specifically,
maintained
500
V
maximum
deviation
1
V,
treadmill
followed
margin
0.1
m/s.
IFAC-PapersOnLine,
Journal Year:
2024,
Volume and Issue:
58(13), P. 563 - 568
Published: Jan. 1, 2024
This
paper
addresses
the
control
problem
of
interconnecting
a
wind
system
based
on
Permanent
Magnet
Synchronous
Generator
(PMSG)
with
electrical
grid.
The
objectives
include:
(i)
Regulating
PMSG
speed
to
extract
maximum
power;
(ii)
Controlling
machine-side
currents;
(iii)
DC
bus
voltage;
(iv)
Ensuring
Power
Factor
Correction
(PFC)
at
grid
connection.
resolution
this
is
two
loops
each
side
(machine
and
grid).
nonlinear
uses
Backstepping
strategy
for
inner
loop
machine
regulate
currents,
while
outer
regulation
machine.
On
side,
current
PFC,
voltage.
Simulation
results
demonstrate
effectiveness
under
various
conditions,
showing
precise
high-quality
energy
production.
