Progressive Identification of Distribution Network Topology Based on User‐Side Internet of Things Device Measurement Data
IET Generation Transmission & Distribution,
Год журнала:
2025,
Номер
19(1)
Опубликована: Янв. 1, 2025
ABSTRACT
The
flexibility
requirements
of
network
topologies
in
advanced
distribution
networks
(ADNs)
have
led
to
increasingly
complex
topologies,
posing
a
significant
challenge
for
topology
identification.
integration
vast
array
internet
things
(IoT)
devices
at
existing
terminals
facilitates
the
real‐time
collection
and
transmission
physical
measurement
data,
thus
providing
new
ideas
identifying
topologies.
This
paper
introduces
progressive
identification
method
grounded
data
captured
by
IoT
devices.
First,
study
employs
similarity
mining
identify
topological
connection
relationships
within
low‐voltage
network.
Second,
integrating
with
historical
medium‐voltage‐side
are
consolidated,
medium‐voltage
is
identified
an
inverse
power
flow
model
based
on
fixed
parameter
ratio.
Furthermore,
address
limitations
low
recognition
accuracy
non‐unique
outcomes
associated
aforementioned
methods,
this
examines
regional
among
proposes
hyperparameter
increase
accuracy.
Finally,
different
case
studies
show
that
proposed
maintains
more
than
80%,
shows
wide
range
applicability
types
sizes
networks.
Язык: Английский
Multi-Stage Rolling Grid Expansion Planning for Distribution Networks Considering Conditional Value at Risk
Energies,
Год журнала:
2024,
Номер
17(20), С. 5134 - 5134
Опубликована: Окт. 16, 2024
Existing
single-stage
planning
and
multi-stage
non-rolling
methods
for
distribution
networks
have
problems
such
as
low
equipment
utilization
efficiency
poor
investment
benefits.
In
order
to
solve
the
above
problems,
this
paper
firstly
proposes
a
rolling
method
based
on
analyzing
limitations
of
existing
methods,
which
divides
cycle
network
into
multiple
stages,
makes
amendments
scheme
each
stage
according
latest
information
during
cycle.
Then,
model
taking
account
conditional
value
at
risk
is
established
with
objective
minimizing
total
operation
cost
network.
On
one
hand,
users’
electricity
bill
taken
in
function,
necessity
part
benefits
demonstrated.
other
used
quantify
uncertainty
process
expansion
network,
reduces
Next,
uses
rainflow
counting
characterize
capacity
decay
characteristics
energy
storage
an
iterative
solution
framework
that
considers
proposed
model.
Finally,
applied
18-node
case.
This
confirms
could
improve
reduce
by
approximately
27.27%.
Besides,
it
will
increase
2750
USD
case
if
not
account.
And
maximum
may
87.6%
initial
or
even
lower
operation,
cause
line
current
exceed
limit
Язык: Английский
Fast power flow calculation for distribution networks based on graph models and hierarchical forward-backward sweep parallel algorithm
Frontiers in Energy Research,
Год журнала:
2024,
Номер
12
Опубликована: Авг. 28, 2024
Introduction
In
response
to
the
issues
of
complexity
and
low
efficiency
in
line
loss
calculations
for
actual
distribution
networks,
this
paper
proposes
a
fast
power
flow
calculation
method
networks
based
on
Neo4j
graph
models
hierarchical
forward-backward
sweep
parallel
algorithm.
Methods
Firstly,
is
used
describe
network
structure
as
simple
model
composed
nodes
edges.
Secondly,
adopted
perform
network.
Finally,
during
computation
subgraphs,
combined
with
Bulk
Synchronous
Parallel
(BSP)
computing
quickly
complete
analysis.
Results
Discussion
from
IEEE
33-node
test
system
demonstrate
that
proposed
can
calculate
losses
accurately,
time
only
0.175s,
which
lower
than
MySQL
methods
do
not
consider
computing.
Язык: Английский
Distributed Dispatch and Profit Allocation for Parks Using Co-Operative Game Theory and the Generalized Nash Bargaining Approach
Energies,
Год журнала:
2024,
Номер
17(23), С. 6143 - 6143
Опубликована: Дек. 5, 2024
To
improve
the
regulatory
capacity
of
distributed
resources
within
park
and
enhance
flexibility
market
transactions,
this
paper
introduces
a
dispatch
profit
allocation
method
grounded
in
cooperative
game
theory
generalized
Nash
bargaining
framework.
Initially,
models
for
individual
equipment
are
established.
Subsequently,
model
is
constructed,
followed
by
development
strategy
based
on
contribution
levels,
using
method.
The
solved
alternating
direction
multipliers.
results
show
that
proposed
approach
achieves
fast
convergence,
optimizes
resource
sharing
mutual
support
park,
lowers
operational
costs,
ensures
fairer
distribution
profits,
promotes
increased
cooperation
among
entities.
Язык: Английский