Journal of
Dec．2013 ISSN 1003— 7985
Southeast
Edition)V01．29，No．4，PP．407— 413
University(English
and
of dual· mode structure
repetitive
control
Design
analysis
current
based
scheme for active
power
filters
hybrid
regulation
Zou
Zhixiang Wang Zheng Cheng Ming
of
Electrical
(School
Engineering，Southeast University，Nanjing 210096，China)
Abstract：An
the
current
scheme for
harmonics in
the
grid．In
several
past
all— digital hybrid
shunt active
regulation
the existent
pensate
re．
single— phase
power filter(√6岬)is presented．
current contr01 scheme the
most
research 1ine for the APF is
important
years．the
The
proposed hybrid
integrates
control
1ated with the control schemes．which can
jm．
effectively
the
deadbeat control and
dual．mode structure
repetitive
the
of the APF fact．the
system．In
prove
performance
that it can offer
(D眦)so
superior steady— state performance
of the姆 is
cur—
on the
mainly dependent
conventional current
performance
rent
tracking
and
the
transient features．Unlike the conventional
schemes，
good
capability．Many
as
regu—
scheme．based心P can compensate both the odd
proposed
lations，such
proportional integral(PI)control”1，hys—
and the even order harmonics in
grid．The detailed design
teresis contr01161 and deadbeat controll“．etc．have been
criteria and the
controller are
which
of the
current
stability analysis
proposed hybrid
in the APF
solutions ex—
system．However．these
applied
structure
presented．Moreover．all improved
hibit some well．known
of the
drawbacks¨1 and from the investi．
the
controller and the
incorporates
proposed hybrid
tracking specific
current
results，the
based on these methods are
control is another
ca—
gation
experimental
tracking
weak．
relatively
resonant controller for
given．The relationships
order harmonics is
pabilities
between the resonant controller and
control
The
current
repetitive
promising
reg．
different
repetitive
schemes
are
discussed．
of
ulation scheme
model
from the intemal
today． Originating
control
results
the effectiveness and
Experimental
the
verify
control scheme．
advantages
a
principle，the
repetitive
for
provides
high—
proposed hybrid
solution
the
current
performance
grid
quality applica—
can be eas—
words：active
structure
Key
filter；dual．mode
power
repetitive
tions‘’一1“．The
disturbance and error
periodic
control；harmonic
control(DMRC)：current
compensation；
eliminated
this
controller．There．
ffack the ref-
precisely
resonant controller
ily
by using
controller can
repetitive
fore，the
repetitive
doi：10．3969／j．issn．1003— 7985．2013．04．010
erence current with various order
suitable for the current
harmonics．and it is
very
control in the APF
applica．
ith
the
use of nonlinear loads in
power
increasing
transient
tion．However，the
of the convert．
performance
W
and
more strict
systems
requirements by grid
a
today．
tional
controller is
for the APF
repetitive
unsatisfactory
codes，the
power quality
The nonlinear lpads
becomes critical issue
because the control values
OHtput
intervals and the error
ev．
application
update
cause
low order har—
may
significant
N
ery
rate is
cycle．
sample
convergence
fundamental
wil】not
monics，which
increase the
lOSS ifl
power
only
slow．N is the
sampling
To accelerate the
times iu
a
distribution lines but
also disturb some sensitive electric
odd— harmonic re—
rate，the
convergence
the
and the active filters
power
equipment．Bom
passive
control scheme was
petitive
proposed‘131．Compared
controller．the odd— har．
been
to alleviate such low
order
(APF)have
proposed
wit}l the
conventional
repetitive
with the
filters．
effi．
harmonics。1“．Compared
passive power
monic
controller
its
values ever-
repetitive
updates
the
the APF is
output
considered more attractive due to its
o⋯ ．The
high
N／2
intervals，and
sample
rate is fas．
Y
and
convergence
function of the APF is
ciency
controllability
ter．Since the main harmonics in the
electronic
power
to
the
harmonics
to
com-
generate
out— of-phase
purposely
are
odd
system
harmonics，the odd— harmonic
for the shunt
repetitive
APF in
Received 2013-06．12．
Biographies：Zou
control(OHRC)was
proposed
cor．
Zhixiang(1985一)，male，graduate；Wang Zhengf
addition to the similar
Ref．【14】．In
rejection
of harmonic
ability
responding author)，male，doctor，associate
professor．．
as the
conventional
contr01．the
performance．
repetitive
edu．cn．
OHRC is verified to offer
better transient
Foundafion items：The National Basic Research
of
China(973
Program
OHRC
However，the
National Natural Science Founda．
Program)(No．2013CB035603)，the
for t}le
only provides high gains
tion of
China(No．51007008，51 137001)，the
Education of
Founda-
odd harmonics but it
Ph．D．Programs
has less
controllability
for tlle even
tion of
Minis of
Fundamental Research Funds for山e
China(No．20100092120043)，the
order
harmonics．Actually，the power system
produces
Central Universities．
even
order harmonics when
converters are
power
em—
Citation：Zou
and
Zhixiang，Wang Zheng，Cheng Ming．Design
analy-
regu．
under
some unusual
ployed
conditions陋1”．Unlike
the
sis of dual-mode structure
corltr01 based
current
hybrid
repetitive
dual— mode structure
eliminate both
1ation scheme for active
of
OHRC，the
(DMRC)can
ics。171．In
Southeast
controller
the odd and even
harmon．
power filters[JJ．Journal
University
repetitive
(English Edition)，2013，29(4)：407— 413．[doi：10．3969／j．issn．1003
— 7985．2013．04．010]
DMRC also
addition，tIle
the control
updates
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