Does New Digital Infrastructure Contribute to Energy-Carbon Performance？The Path Analysis of Heterogeneous Technological Progress
Опубликована: Янв. 1, 2025
Язык: Английский
On the Exact Formulation of the Optimal Phase-Balancing Problem in Three-Phase Unbalanced Networks: Two Alternative Mixed-Integer Nonlinear Programming Models
Electricity,
Год журнала:
2025,
Номер
6(1), С. 9 - 9
Опубликована: Март 2, 2025
This
article
presents
two
novel
mixed-integer
nonlinear
programming
(MINLP)
formulations
in
the
complex
variable
domain
to
address
optimal
phase-balancing
problem
asymmetric
three-phase
distribution
networks.
The
first
employs
a
matrix-based
load
connection
model
(M-MINLP),
while
second
uses
compact
vector-based
representation
(V-MINLP).
Both
integrate
power
flow
equations
through
current
injection
method,
capturing
nonlinearities
of
Delta
and
Wye
loads.
These
formulations,
solved
via
an
interior-point
optimizer
branch-and-cut
method
Julia
software,
ensure
global
optima
computational
efficiency.
Numerical
validations
on
8-,
25-,
37-node
feeders
showed
loss
reductions
24.34%,
4.16%,
19.26%,
outperforming
metaheuristic
techniques
convex
approximations.
M-MINLP
was
15.6
times
faster
25-node
grid
2.5
system
when
compared
V-MINLP
approach.
results
demonstrate
robustness
scalability
proposed
methods,
particularly
medium
large
systems,
where
often
fail
converge.
advance
state
art
by
combining
exact
mathematical
modeling
with
efficient
computation,
offering
precise,
scalable,
practical
tools
for
optimizing
corresponding
were
performed
using
(v1.10.2),
JuMP
(v1.21.1),
AmplNLWriter
(v1.2.1).
Язык: Английский
A Real-Time Analytical Steady-State Calculation in Power System Restoration: Managing Uncertainty
Results in Engineering,
Год журнала:
2025,
Номер
unknown, С. 104721 - 104721
Опубликована: Март 1, 2025
Язык: Английский
Comprehensive Flexible Framework for Using Multi-Machine Learning Methods to Optimal Dynamic Transient Stability Prediction by Considering Prediction Accuracy and Time
Results in Engineering,
Год журнала:
2025,
Номер
unknown, С. 104728 - 104728
Опубликована: Март 1, 2025
Язык: Английский