1010
IEEE
Transactions
on
Power Systems,
Vol.
14,
NO.
3,
August
1999
The
IEEE
Reliability
Test
System
=
1996
Application
of Probability
Methods
Subcommittee
A
report
prepared
by
the
Reliability
Test
System
Task
Force
of
the
ABslRAcT
This
oeportdescribesan enhanced testsystem (WW)for
MW
In
bulk
power
system reliability evaluation studies. The value of
the tost system
is
that
it
will
permit comparative and benchmark
studios
to
be
perf0me-d
on new and existing reliability evaluation
techniques. The test system was developed
by
modifying and
updating the original
IEEE
RTS (referred
to
as
RTS79
hereafter) to
reflect changes In evaluation methodologies and
to
overcome
perceived deficiencies.
-
The first version of the
IEEE
Reliability Test System
(RTS
79)
was
developed and published in
1979 [l]
by the Application
of
Probability Methods
(APM)
Subcommittee
of
the Power System
Englaeering Committee.
It
was developed
to
satisfy
the need
for
a
standardized data
base
to
test and compare results from different
power system reliability evaluation methodologies.
As
such,
RTS-79
was
designed
to
b@
a reference system that contains the core data
and system parameters necessary for composite reliability evaluation
methods.
It
was recognized at that time that enhancements
to
RTS
79
may
be
required for particular applications. However, it was felt
that additional data needs could
be
supplemented by individual
authors and or addressed in future extensions
to
the
RTS-79.
In
1986
a second version of the RTS was developed (RTS
86)
and published
[2]
with the objective of making the
RTS
more
useful in assessing different reliability modeling and evaluation
methodologies. Experience with
RTS79
helped
to
Identify the
critical additional data requirements and the need
to
Include the
reliability Indices
of
the test system. RTS-86 expanded the data
systam primarily relating to the generation system. The revision not
only extended the number of generating units in the
RTS-79
data
base
but also included unit derated states, unit scheduled
mairJtenance, load forecast uncertainty and
the
effect
of
interconnection. The advantage of
RTS-86
lies In the fact that
it
presented the system reliability indices derived through the use of
rigorous solution techniques without any approximations in the
evaluation process. These exact indices serve to compare with
resurts obtained from other methods.
Since the publication of RTS-79, several authors have
reported the results of their research in the
IEEE
Journals and many
international journals using this system. Several changes in
the
electric utility industry have taken place since the publication of RTS-
79,
e.g. transmission access, emission caps, etc.
These changes
along with certain perceived enhancements
to
RTS-79 motivated this
task
force to suggest a multi-area RTS incorporating additional data.
*
Cu-Chairmen:
C.
Grigg and P.Wong; P. Albrecht,
R
Allan,
M.
Bhavaraju,
R
Billinton,
0.
Chen,
C.
Fong,
S.
Haddad,
S.
Kuruganty,
W.
U,
R.
Mukerji,
D.
Patton,
N.
Rau,
D.
Reppen,
k
Schneider,
M.
Shaliidehpour.
C.
Singh. See Biographies for affiliations.
96
WM
326-9 PWRS
.4
paper recommended and approved by the IEEE
Power System Engineering Committee
of
the IEEE Power Engineering
Society
for
presentation at the 1996 IEEFYPES Winter Meeting, January
21-
25, 1996, Baltimore, MD. Manuscript submitted August
1,
1995; made
avai!able
for
printing January
15,
1996.
It
should
be
noted
that In developing
and
adopting the
various
parameters
for
RTS-96,
there
was
no Intention
to
develop a
test
system
which was representative
of
any
specific
or
typical power
system. Forcing
such
a requirement on
RTs-98
would
result in a
system with less universal characteristics and therefore would
be
less
useful
as
a
reference
for
testing
the
impact
of
different evdraation
techniques on diveme applications and technologies.
Ofbe
of
the
Important requirements
of
a good test system
is
that
it
should
represent,
as
much
as
possible,
all
the different technologies and
configurations that could
be
encountered on any system.
RTs96
therefore
has
to
be
a hybrid and atypical
system.
SYslEMTOPOUXY
The
topology
for
RTS-79
is
shown
in Figure
1
and is
labeled
'kea
A'
Si-
the demand
for
methodologles that
can
analyze multi-area
power
systems has been Increasing lately due
to
increases in interregional transactions and advances in available
computing power, the
task
force dedded
to
develop a multi-area
reliability test system by linking various single RTS79 areas. Figure
2
shows a two-area system developed by merging
two
single areas
-
-
'Area
A'
and 'Area
B'
through three interconnections.
As
shown the
two
areas are interconnected by the following new Interconnections:
0
0
0
51
mile
230
kV line connecting bus
#
123
and bus
#
217
52
mile
230
kV line connecting bus
#
113
and
bus
#
215
42
mile
138
kV line connecting bus
#
107
and bus
#
203.
38
kV
Figure
1
-
IEEE
One
Area
RTS-96
0885-8950/99/$10.00
0
1996
IEEE
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