Investigation of reactive power referring to recent studies of time-averaged stored energy density
AIP Advances,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 1, 2025
It
is
known
that
the
energies
associated
with
reactive
power
periodically
exchange
between
supply
and
energy
storage
component(s)
of
capacitor
and/or
inductor.
However,
may
be
altered
by
electronic
devices
without
capacitors
or/and
inductors,
which
cannot
reasonably
explained
following
electrical
theory.
In
this
work,
transmission,
dissipation,
electromagnetic
either
a
sinusoidal
alternating
current
or
an
wave
traveling
in
transmission
line
are
addressed;
positive
definite
expression
time-averaged
stored
density
instead
usual
non-positive
one
proposed.
demonstrated
that,
under
certain
conditions,
product
voltage
intensity
applied
to
represent
instantaneous
power,
active
consistent
dissipated
energy.
related
part
energy,
indicates
relates
considered
circuit.
Furthermore,
it
shown
influences
thyristors
on
attributed
change
(fundamental
frequency)
induced
thyristor
contribution
resistor
also
alter
value
power.
This
work
helpful
establish
bridge
theory
Poynting’s
theorem,
deepen
understanding
improve
Language: Английский
Smart Internet of Things Power Meter for Industrial and Domestic Applications
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(17), P. 7621 - 7621
Published: Aug. 28, 2024
Considering
the
widespread
presence
of
switching
devices
on
power
grid
(including
renewable
energy
system
inverters),
network
distortion
is
more
prominent.
To
maximize
efficiency,
our
goal
to
minimize
these
distortions.
Measuring
voltage
and
current
total
harmonic
(THD)
using
meters
other
specific
equipment,
assessing
factor
peak
currents,
represents
a
crucial
step
in
creating
an
efficient
stable
smart
grid.
In
this
paper,
we
propose
meter
capable
for
measuring
both
standard
electrical
parameters
quality
such
as
factors.
The
resulting
device
compact
DIN-rail-mountable,
occupying
only
three
modules
cabinet.
It
integrates
wired
wireless
communication
interfaces
multiple
protocols,
Modbus
RTU/TCP
MQTT.
A
microSD
card
can
be
used
store
configuration
record
measured
values
case
fault
events,
device’s
continuous
operation
being
ensured
by
integrated
backup
battery
situations.
was
calibrated
tested
against
industrial
meters:
Siemens
SENTRON
PAC4200,
Janitza
UMG-96RM,
Phoenix
Contact
EEM-MA400,
obtaining
overall
average
measurement
error
1.22%.
Language: Английский
Compensation of Budeanu’s Reactive and Complemented Reactive Currents in Extended Budeanu Theory in 3-Phase 4-Wire Systems Powered by Symmetrical Nonsinusoidal Voltage Source
Energies,
Journal Year:
2024,
Volume and Issue:
17(9), P. 2020 - 2020
Published: April 25, 2024
The
result
of
continuous
efforts
in
the
development
power
theory,
Budeanu’s
theory
was
successfully
extended.
mathematical
description
that
has
been
proposed
is
based
on
another
concept,
namely
Currents’
Physical
Components
(CPC)
theory.
With
CPC
it
possible
to
describe,
original
Budeanu
components
load
current,
including
distortion
current.
current
can
have
a
maximum
five
associated
with
different
physical
phenomena
and
related
equivalent
parameters
load.
This
article
discusses
passive
compensation,
which
provides
compensation
for
reactive
complemented
due
known
reactance
elements.
In
addition,
refers
very
important
aspect
when
determining
compensator,
i.e.,
choosing
such
way
compensator
simultaneously
compensates
unbalanced
presents
methods
relating
determination
parameters.
Two
are
only
first
harmonic
without
affecting
next
three
relate
consideration
Calculations
simulations
were
performed
all
methods,
results
presented
analyzed
this
publication.
Matlab/Simulink
R2023a
environment
used
as
calculation
simulation
software.
Language: Английский