IEEE Transactions on Intelligent Vehicles,
Год журнала:
2023,
Номер
9(1), С. 372 - 382
Опубликована: Ноя. 15, 2023
This
paper
is
concerned
with
the
observer-based
fuzzy
adaptive
fault-tolerant
control
problem
for
nonlinear
steering
(NSC)
system
of
unmanned
surface
vehicle
(USV)
unmeasurable
states,
sideslip
angle,
and
machine
fault.
To
facilitate
controller
design,
Takagi-Sugeno
(T-S)
model
used
to
deal
NSC
system,
modeling
error
analysis
(MEA)
conducted
T-S
using
real
course
tracking
data.
By
introducing
a
pre-filter,
large
heading
change
rate
can
be
avoided
robustness
improved.
Then,
observer
(FAO)
developed,
based
on
which
an
mechanism
given
estimate
fault
signals
simultaneously.
Furthermore,
utilizing
online
estimation
information
provided
by
FAO,
FAO-based
designed
mitigate
effects
angle
Finally,
simulation
examples
comparison
experiment
"Qingshan"
USV
demonstrate
apparent
performance
developed
method.
IEEE Transactions on Systems Man and Cybernetics Systems,
Год журнала:
2024,
Номер
54(7), С. 4371 - 4380
Опубликована: Апрель 5, 2024
The
work
is
centered
on
developing
a
constructive
method
of
synthesizing
an
output-feedback
second-order
sliding-mode
(SOSM)
controller.
By
leveraging
coordinate
transformation
and
revamping
the
technique
adding
power
integrator,
state-feedback
SOSM
controller
first
constructed
under
full-state
measurement.
In
order
to
tackle
challenge
posed
by
unmeasurable
derivative
sliding
variable,
discontinuous
observer
with
appropriately
selected
scaling
gains
put
forward
overcome
measurable
lack.
Through
interactive
cooperation
observer,
successfully
designed
without
reliance
upon
separation
principle.
finite-time
convergence
whole
system
rigorously
validated
dint
Lyapunov
function-based
analysis.
efficiency
theoretical
results
ultimately
corroborated
through
simulation
study.
International Journal of Robust and Nonlinear Control,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 30, 2025
ABSTRACT
As
a
result
of
the
rapid
growth
distributed
state
estimation
in
modern
power
systems,
networks
are
facing
increasingly
serious
security
problems,
thus
requiring
advancement
defense
techniques
against
cyber
attacks.
This
paper
is
devoted
to
investigating
consensus
with
mechanism
false
data
injection
(FDI)
attacks
for
systems.
By
introducing
transformation
matrix,
local
subsystem
model
associated
mixed
remote
terminal
unit
and
phasor
measurement
measurements
constructed.
Taking
into
account
historical
information
on
variables
without
being
attacked,
constructed
by
secure
value
presented
protect
estimator
FDI
while
maintaining
accuracy
estimation.
Then
Kalman
filter
(DKCF)
hosted
estimate
dynamic
states
systems
under
attack
protector.
Considering
scalability
large‐scale
suboptimal
DKCF
designed
protector
developed.
means
Lyapunov‐based
approach,
sufficient
condition
provided
ensure
that
proposed
equipped
stable.
Finally,
algorithms
validated
an
IEEE
benchmark
14‐bus
system.
IEEE Internet of Things Journal,
Год журнала:
2023,
Номер
11(1), С. 1361 - 1373
Опубликована: Июнь 26, 2023
This
article
delves
into
the
intricacies
of
adaptive
fuzzy
event-triggered
formation
tracking
control
for
nonholonomic
multirobot
systems
characterized
by
infinite
actuator
faults
and
range
constraints.
To
address
these
issues,
we
leverage
power
logic
(FLSs)
employ
methods
to
approximate
unknown
nonlinear
functions
uncertain
parameters
present
in
robotic
dynamics.
In
course
information
exploration,
problems
collision
avoidance
connectivity
maintenance
are
ever
due
limitations
distance
visual
fields.
this
regard,
introduce
a
general
barrier
function
prescribed
performance
methodology
tackle
constrained
impediments
effectively.
Furthermore,
reduce
number
controller
executions
compensate
any
effect
arising
from
failures,
robots
engage
with
their
leader
at
moment
using
fewer
network
communication
resources
yet
maintain
uninterrupted
desired
trajectory
generated
leader.
With
aid
dynamic
surface
technology,
propose
decentralized
event-triggering
fault-tolerant
(ETFT)
strategy.
We
guarantee
that
all
signals
semi-global
uniformly
ultimately
bounded
(SGUUB).
Ultimately,
demonstrate
practical
feasibility
ETFT
strategy
systems.
Mathematics,
Год журнала:
2024,
Номер
12(2), С. 314 - 314
Опубликована: Янв. 18, 2024
This
paper
investigates
the
observer-based
adaptive
fuzzy
quantized
control
problem
for
a
class
of
fractional-order
nonlinear
time-delay
systems
with
unknown
gains
based
on
modified
dynamic
surface
(FODSC)
technique
and
an
indirect
Lyapunov
method.
First,
fractional-order,
high-gain
state
observer
is
constructed
to
estimate
unavailable
information.
Furthermore,
Nussbaum
gain
filter
are
adopted
cope
reduce
computational
complexity
conventional
recursive
procedure,
respectively.
Moreover,
through
integration
compensation
mechanism
estimation
model,
controllers
laws
designed
ensure
that
all
signals
closed-loop
system
bounded.
In
end,
proposed
controller
applied
numerical
example
single-machine-infinite
bus
(SMIB)
power
system;
simulation
results
show
validity,
superiority,
application
potential
developed
strategy.
IEEE Transactions on Systems Man and Cybernetics Systems,
Год журнала:
2024,
Номер
54(7), С. 4077 - 4088
Опубликована: Апрель 3, 2024
Intelligent
control
is
a
crucial
technology
for
realizing
Industry
5.0,
which
makes
industrial
engineering
systems
more
efficient,
robust,
and
resilient.
It
noteworthy
that
uncertainties
disturbances
will
inevitably
be
detrimental
to
the
performances
of
5.0
applications.
To
deal
with
these
issues,
we
propose
novel
super-twisting-like
continuous
extended
state
observer-based
fixed-time
composite
learning
fuzzy
scheme
apply
it
typical
system.
Unlike
conventional
adaptive
methods
update
parameters
merely
by
closed-loop
stability
conditions,
proposed
utilizes
both
tracking
errors
prediction
compositely,
achieves
better-tracking
performance
approximation
precision.
First,
logic
(FLSs)
are
developed
identify
unknown
model
functions
in
Second,
remaining
FLSs,
parameter
uncertainties,
external
disturbances,
observers
designed
estimate
lumped
disturbances.
Third,
indicate
precision
constructed
developing
parallel
estimators.
Moreover,
rigorous
Lyapunov
analysis
carried
out
illustrate
convergence
entire
Finally,
applied
practical
buck
converter
system
toward
comparative
hardware
experiments
verified
advantages
scheme.
International Journal of Systems Science,
Год журнала:
2024,
Номер
55(7), С. 1326 - 1345
Опубликована: Янв. 23, 2024
In
this
research,
the
issue
of
decentralised
adaptive
neural
finite-time
prescribed
performance
control
is
discussed
for
nonstrict-feedback
large-scale
nonlinear
interconnected
systems
subject
to
dead
zones
input
and
unknown
direction.
The
obstacle
'explosion
complex'
occurred
in
conventional
backstepping
design
can
be
surmounted
by
adopting
command
filter
technique
nonlinearities
are
approximated
introducing
an
approach.
To
handle
obstacles
due
directions
interconnections,
Nussbaum-type
functions
two
smooth
used
designed.
Meanwhile,
error
compensation
signals
introduced
deal
with
problem
associated
dynamic
surface
method.
constraint
output
tracking
within
a
predefined
boundary
finite
time,
improved
function,
i.e.
function
introduced.
Different
from
existing
results,
developed
methodology
does
not
require
any
information
on
boundedness
dead-zone
parameters.
It
further
proved
that
constructed
controller
only
assures
semi-global
all
controlled
system
signals,
but
also
makes
errors
reach
small
set.
Finally,
both
numerical
practical
examples
supplied
validate
effectiveness
presented
theoretic
result.
