International Journal of Energy Research,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
In
this
paper,
a
novel
approach
is
presented
for
optimizing
economic
dispatch
(ED)
in
power
systems
featuring
solar
farms
and
flexible
loads.
The
ED
problem
formulated
as
multiobjective
optimization
task
with
stochastic
characteristics.
To
address
challenge,
hybrid
algorithm
named
differential
evolution
(hDE)‐multiobjective
flower
pollination
(MOFPA)
proposed,
which
integrates
principles
from
the
MOFPA,
yielding
enhanced
performance.
Two
weighted
objective
functions
are
introduced
to
represent
operation
cost
system
generation
flexibility
index
(GFI)
based
on
carefully
selected
scenarios.
occurrence
probability
of
each
scenario
influences
function’s
final
value.
Monte
Carlo
simulation
(MCS)
utilized
selection,
enabling
comprehensive
assessment
We
first
evaluate
proposed
by
standard
benchmark
comparing
results
against
those
other
state‐of‐the‐art
algorithms.
outcomes
demonstrate
superior
accuracy
efficiency
hDE‐MOFPA
algorithm.
subsequent
phase,
we
optimally
solve
problem,
considering
uncertainties
involvement
A
sensitivity
analysis
conducted
examine
impact
loads
both
emissions.
reveal
that
combined
uncertainty
load
photovoltaic
(PV)
significantly
system.
By
adopting
approach,
our
method
offers
valuable
insights
into
loads,
various
indicates
leads
4.9%
increase
operational
expenditures
4.1%
decrease
GFI.
Also,
irradiation
range
5%
20%,
GFI
experiences
decline
4.08%
20.18%,
while
costs
undergo
an
4.92%
18.93%.
Energy Reports,
Journal Year:
2024,
Volume and Issue:
11, P. 4423 - 4451
Published: April 18, 2024
In
recent
times,
the
landscape
of
power
systems
has
undergone
significant
evolution,
particularly
with
integration
diverse
renewable
energy
sources
(RESs).
This
advancement
presents
an
invaluable
opportunity
to
enhance
efficiency
in
modern
grid,
primarily
by
bolstering
role
stochastic
RESs.
The
challenge
lies
optimal
flow
(OPF),
a
multifaceted
and
non-linear
optimization
that
grows
more
complex
inclusion
RESs
aims
optimize
allocation
system
resources
minimize
operational
cost
while
maintaining
stability
security
system.
Addressing
this,
current
study
introduces
innovative
approach,
Multi-Objective
RIME
(MORIME)
algorithm.
Drawing
inspiration
from
physical
phenomenon
rime-ice,
called
RIME,
MORIME
seeks
effectively
tackle
OPF
issues.
algorithm
enhances
solution
accuracy
smartly
dividing
non-dominated
sorting
crowding
distance
mechanism.
proposed
model
incorporates
three
types
RESs:
solar
photovoltaic,
wind
small-scale
hydropower
units.
While
uncertainties
speed
irradiation
are
managed
through
Monte
Carlo
simulations,
small
hydro
unit
is
considered
constant
source.
efficacy
tested
on
IEEE
30
bus
results
indicate
method
identifies
for
multi-objective
problem
satisfying
constraints,
thereby
proving
its
effectiveness
superiority
over
MOWOA,
MOGWO,
MOALO,
MOMRFO
MOAGDE
terms
Hyper
Volume
(HV)
reciprocal
Pareto
Sets
Proximity
(1/PSP)
metrices.
source
code
available
at:
https://github.com/kanak02/MORIME
Applied Soft Computing,
Journal Year:
2023,
Volume and Issue:
149, P. 110977 - 110977
Published: Oct. 28, 2023
Sustainable
energy
is
a
key
component
of
sustainable
development.
The
current
grid
can
be
supplied
by
fossil
fuel
generators
and
renewable
sources
(RESs)-based
generators,
such
as
solar
photovoltaic
(PV)
wind
power
generators.
In
an
electrical
network,
generation
from
several
must
optimally
coordinated
to
ensure
efficient
economical
operation.
However,
the
intermittent
uncertain
nature
RESs
complicate
operation
systems.
this
study,
adaptive
geometry
estimation-based
multi-objective
differential
evolution
(AGE-MODE)
method
proposed
for
optimal
flow
in
hybrid
system
thermal,
wind,
(MOOPF-TWS).
approach,
PV
outputs
are
predicted
based
on
Weibull
lognormal
probability
distribution
functions,
respectively.
Therefore,
costs
divided
into
direct
costs,
penalty
underestimation,
reserve
overestimation.
Furthermore,
emissions,
voltage
deviation,
real
loss
considered
particular
cases.
AGE-MODE
applied
modified
IEEE
30-bus
57-bus
systems,
where
different
case
studies
simulated
with
combinations
two-,
three-,
four-objective
optimizations
MOOPF-TWS
problems.
Comparisons
between
other
recently
developed
methods
demonstrate
its
effectiveness
resolving
problems,
particularly
cases
more
than
two
objectives.
International Journal of Systems Science,
Journal Year:
2024,
Volume and Issue:
55(11), P. 2211 - 2223
Published: April 9, 2024
In
this
paper,
demand
response
for
isolated
industrial
micro-grid
is
investigated,
in
which
the
typical
manufacturing
assembly
process,
battery,
conventional
generator
and
PV
generation
are
contained.
The
process
modelled
by
fully
considering
coupling
relationships
between
tasks
buffers.
On
other
hand,
uncertainty
taken
into
account,
where
data-driven
distributionally
robust
chance
constraints
designed
error
day-ahead
forecast
real-time
operation
dealt
with
reserve
capacity
of
generator.
addition,
expectation
operator
reformulated
as
linear
constraints,
can
be
solved
commercial
solver
directly.
Finally,
a
case
study
using
lithium-ion
battery
factory
presented
to
prove
superiority
effectiveness
proposed
model.
Algorithms,
Journal Year:
2024,
Volume and Issue:
17(7), P. 313 - 313
Published: July 16, 2024
The
crow
search
arithmetic
optimization
algorithm
(CSAOA)
method
is
introduced
in
this
article
as
a
novel
hybrid
technique.
This
proposed
strategy
population-based
metaheuristic
inspired
by
crows’
food-hiding
techniques
and
merged
with
recently
created
simple
yet
robust
(AOA).
method’s
performance
superiority
over
other
existing
methods
evaluated
using
six
benchmark
functions
that
are
unimodal
multimodal
nature,
real-time
problems
related
to
power
systems,
such
the
weighted
dynamic
economic
emission
dispatch
(DEED)
problem.
A
load-shifting
mechanism
also
implemented,
which
reduces
system’s
generation
cost
even
further.
An
extensive
technical
study
carried
out
compare
DEED
penalty
factor-based
arrive
at
superior
compromise
option.
effects
of
CO2,
SO2,
NOx
studied
independently
determine
their
impact
on
system
emissions.
In
addition,
weights
modified
from
0.1
0.9,
generating
investigated.
Nonparametric
statistical
analysis
asserts
CSAOA
robust.
IEEE Transactions on Power Systems,
Journal Year:
2024,
Volume and Issue:
39(6), P. 6889 - 6900
Published: Feb. 29, 2024
Multi-objective
economic
emission
dispatch
(MOEED)
is
a
key
fundamental
problem
for
the
optimal
operation
of
power
systems.
With
increasing
scale
grid
integration
renewable
sources
such
as
wind
and
solar
power,
VSC-based
multi-port
systems
can
improve
system
flexibility
to
increase
consumption
power.
In
this
context,
structure
more
compact,
making
corresponding
MOEED
complicated.
Considering
uncertainty
model
established
in
study.
The
overestimation
underestimation
situations
are
modeled.
To
solve
model,
we
presented
an
enhanced
multi-objective
differential
evolution,
namely
RLMOQILDE.
Moreover,
mating
pool-based
quadratic
interpolation,
reinforcement
learning,
constraint
processing
technology
combined
boost
its
performance.
Finally,
feasibility
effectiveness
RLMOQILDE
verified
on
two
three-port
constructed
by
expanding
modified
IEEE
30-bus
system.