... COMPONENTS
• Two areas ( 230 kV &
138 kV)
• 21 branches
•
10 generators (implicit
•
10 generators (implicit
GSU transformers)
• 20 loads
• 5 two-winding
transformers with
OLTC
• 3 fixed shunts
eBook ... You
Correcting the voltage issues
8
• To address the low voltage at buses 3 and 24,
we added a fixed shunt capacitor of 75 MVAR at
bus 3
LOAD FLOW ANALYSIS
• To address the low voltage at buses 4, 5, ... AC
contingency
analysis
eBook for You
3- Phase Line Fault Results
46
DYNAMIC ANALYSIS
• Match the events in the progress window to the plot
eBook for You
39
IEEE 24 – DYNAMIC ANALYSIS
eBook for...
... data
K
46
E
31
K
A
=
46
E
1
=
3
.
1
T
A
= 0.06 E
2
= 2 .3
T
B
= 0 K
E
= com
p
uted
B
E
p
T
C
= 0 V
RMAX
= 1.0
T
E
= 0.46 V
RMIN
= -0.9
K
F
= 0.1
T
F
= 1.0
S
E
[E
1
]
=
033
S
E
[E
1
]
0
.
33
S
E
[E
2
] ...
Exciters
2
EXDC2 and ESDC2A
Sample data
K
30 0
E
30 5
K
A
=
30 0
E
1
=
3
.
05
T
A
= 0.01 E
2
= 2.29
T
B
= 0 K
E
= 1.0
B
E
T
C
= 0 V
RMAX
= 4.95
T
E
= 1 .33 V
RMIN
= -4.9
K
F
= 0.1
T
F
= 0.675
S
E
[E
1
]
=
0 ...
for
operating
flexibility
eBook for You
DC Exciters 3
50
EXCITER MODELS IN PSS®E
DC
Exciters
3
IEEET4, IEEEX4, IEEET5, IEET5A and
DC3A
Rtldtitilth
R
epresen
t
very o
ld
sys
t
ems,...
... Model Verification
38
OVERVIEW OF SIMULATION PROCEDURE
Model
Verification
1. Data parameters are checked for
reasonableness
2. The performance of generating units are
tested
3. The initialization ...
eBook for You
Dynamic Simulation Arrays
13
CLASSIFICATION OF VARIABLES
Dynamic
Simulation
Arrays
Internal Arrays
eBook for You
CONEC and CONET during RUN
31
DYNAMIC SIMULATION SEQUENCE
CONEC
... V
b
E
1
1
'
2
Calculate
I
jXRjX
jB
jXR
e
jX
E
V
b
1
'
1
/
'
'
2
.
Calculate
I
gen
'
'
jX
VE
I
b
gen
3. Calculate P
gen
jX
cos'
gengen
I
EP
eBook for You
Model Setup and Use
37
OVERVIEW OF SIMULATION PROCEDURE
Model
Setup
and
...
...
Turbine
Models
TGOV1
TGOV1
Typical parameters:
R = 0.05 pu
T
1
= 0.50 s
T
2
/T
3
= 0 .3
T
5t 9
T
3
=
5
t
o
9
s
eBook for You
Introduction
4
TYPES OF GOVERNORS
Introduction
The ... constant effect
The ratio T
2
/T
3
is the fraction of turbine power
developed by the high
pressure turbine
developed
by
the
high
-
pressure
turbine
T
3
is the reheater time constant
T
1
is ...
Models
HYGOV
Typical parameters
eBook for You
Steam Turbine Models
32
GOVERNOR MODELS IN PSS®E
Steam
Turbine
Models
TGOV3
Modification of IEEEG1 and PTI recommended
Modification
of
...
...
File
Generator at bus 100 (x3)
eBook for You
Models Used for Dynamic File
38
DYNAMIC FILE
Models
Used
for
Dynamic
File
Exciter at bus 201
eBook for You
3
DYNAMIC FILE
eBook for You
Generator ... SYSTEM STABILITY CALCULATION TRAINING
D4
DiSiltiPiilPt3
D
ay
4
-
D
ynam
i
c
Si
mu
l
a
ti
on
P
r
i
nc
i
p
l
es
P
ar
t
3
July 9, 2013Prepared by: Mohamed El Chehaly
eBook for You
Models ... System
35
DYNAMIC FILE
Example:
Simple
System
Load BPL.sav
eBook for You
Models Used for Dynamic File
45
DYNAMIC FILE
Models
Used
for
Dynamic
File
Exciter at bus 100 (x3)
eBook...
... 33
NEVA
–
PSS NETOMAC
NEVA
–
PSS
NETOMAC
eBook for You
Nature of Modes
28
SMALL-SIGNAL STABILITY
Nature
...
size
eBook for You
Launch NEVA
35
NEVA – PSS NETOMAC
Launch
NEVA
From PSS®E, load a saved case and
difil
d
ynam
i
c
fil
e
Launch NEVA
eBook for You
Calculation of
Eigenvalue
39
NEVA – PSS NETOMAC
Calculation
... Eigenvalues
eBook for You
Nature of Modes
31
SMALL-SIGNAL STABILITY
Nature
of
Modes
Inter area oscillations as power system
grows
grows
eBook for You
Dominant Mode
32
SMALL-SIGNAL STABILITY
Dominant
...
... s
less than 430 kV (0.86 pu) for 5 seconds
PLAM_T5 (bus 436 78, load 43 MW)
PLAM_T6 (bus 436 88, load 42 MW)
Trip 2 auto-transformers at LONG AN 2
eBook for You
13
SCENARIO 3: FAULTS AT ... You
Faults
12
SCENARIO 2
Faults
PLEIKU (33 00)
Three
phase fault following by a trip of line
Three
-
phase
fault
following
by
a
trip
of
line
PLEIKU – DI LINH (33 00 – 4020) after 100 ms
... DI LINH (33 00 – 4020) after 100 ms
(successful and unsuccessful auto-reclose)
DI LINH (4020)
DI
LINH
(4020)
Three-phase fault following by a trip of line
PLEIKU
–
DI LINH (33 00
–
4020)...
... 3
IEEE 24
–
SAVED CASE
IEEE
24
–
SAVED
CASE
BUILD-UP
eBook for You
38
LOAD FLOW ANALYSIS
Correcting the voltage issues
• To address ... adding
after
adding
the title, legend
and summation
label
eBook for You
Limit checking reports
33
LOAD FLOW ANALYSIS
Limit
checking
reports
• Under the Power Flow, Reports, Limit checking ... other machines to increase their reactive
power output
• Set the scheduled volta
g
e at bus 23 to 1. 03
p
u and re-run the simulation
gp
eBook for You
Branch Data
7
SAVED CASE BUILD-UP
Branch
Data
•...
... CALCULATION TRAINING
Day 13 & 14
-
Case Study
–
IEEE 24 Bus Test System
Day
13
&
14
-
Case
Study
–
IEEE
24
Bus
Test
System
PART 2
July 22- 23, 2013Prepared by: Frida Ceja-Gomez
eBook ... VERIFICATION
Governor
Response
Test
• Set Vmax = 1 for the governor models at buses 1, 2, 7, 13
and 23
and
23
• Are the speed deviations better?
eBook for You
Initialization Errors
22
DYNAMICS DATA ... Test
43
DYNAMICS DATA VERIFICATION
Exciter
Open
Circuit
Step
Response
Test
• Plot EFD
• Are the overshoot, rise time and settling time adequate?
eBook for You
Generator V
Curves
34
DYNAMICS...
... cycles by tripping the transformer
• Run for 10 seconds
eBook for You
38
QUESTIONS?
eBook for You
Small Signal Stability using NEVA
34
IEEE 24 – SMALL SIGNAL STABILITY
Small
Signal
Stability
using
... deviation
Pload
Initialize and run until t = 2 seconds
Scale
all loads by 30 0 MW
Scale
all
loads
by
30 0
MW
Run until t = 200 seconds
eBook for You
Under/Over Fre
q
uenc
y
Rela
y
...
Stability
using
NEVA
• PSS at bus 7 (more unstable)
eBook for You
Small Signal Stability using NEVA
35
IEEE 24 – SMALL SIGNAL STABILITY
Small
Signal
Stability
using
NEVA
• PSS at bus 1, 2,...
... statements
Examples
Examples
eBook for You
Operators
32
CONTROL FLOW TOOLS
Operators
Python arithmetic operators
eBook for You
Operators
38
CONTROL FLOW TOOLS
Operators
Python membership operators
... string
H
d
th
>>>print str1[2:5] # Prints characters starting from 3
r
d
to 5
th
llo
>>>print str1[2:] # Prints string starting from 3
rd
character
llo World!
>>>print str1*2 # Prints ... print str1 + "TEST" # Prints concatenated string
Hello World!TEST
eBook for You
Operators
37
CONTROL FLOW TOOLS
Operators
Python logical operators
a=True and b=True
a=True
and
b=True
eBook...
... FACTS
Switched shunts
Auxiliary signal
Induction machine (only in PSS®E 33 )
eBook for You
Dynamic Simulation Function
33
DYNAMIC SIMULATION
Dynamic
Simulation
Function
DYRE_NEW
Clear ...
Disconnect
a
bus
dist_3wind_trip: Set a three-winding transformer
to out-of-service
dist_machine_trip: Set a machine to out-of-
service
eBook for You
Dynamic Model API
43
DYNAMIC SIMULATION
Dynamic
...
14
-
15
-
A
u
t
oma
ti
on us
i
ng
P
y
th
on
December 5, 2013Prepared by: Mohamed El Chehaly
eBook for You
Dynamic Simulation Function
36
DYNAMIC SIMULATION
Dynamic
Simulation
Function
RUN
...
...
l
eve
l
s
The short-circuit level at the boundary bus
PLEIKU (bus 33 00) in the original system is:
PLEIKU
(bus
33 00)
in
the
original
system
is:
eBook for You
Vietnamese Power ... NOT
SOLVE)
3
Di tth ti li th t tth
3
.
Di
sconnec
t
th
e
ti
e
li
nes
th
a
t
connec
t
th
e
boundary buses to the external system
eBook for You
Model Calling Sequence Rules
43
NON-STANDARD ... You
Vietnamese Power System
23
REDUCED POWER SYSTEM
Vietnamese
Power
System
5
Sh t
iitll
5
.
Sh
or
t
-c
i
rcu
it
l
eve
l
s
The short-circuit level at the boundary bus
PLEIKU (bus 33 00) in the reduced...
... non-convergence?
• Would this be resolved b
y
increasin
g
the iteration limit?
yg
eBook for You
3
THE VIETNAMESE POWER
THE
VIETNAMESE
POWER
SYSTEM
Overview of the Vietnamese Power System
&
Load ... checkin
g
fla
g
an
y
p
roblems?
gg ggyp
eBook for You
Automatic Sequencing Fault Calculation in
43
SHORT-CIRCUIT ANALYSIS
Automatic
Sequencing
Fault
Calculation
in
PSS®E
• Repeat the ... contingency solution (ACCC) and build
the distribution factor data file
eBook for You
AC C ti A l i R lt
34
N-1 CONTINGENCY ANALYSIS
AC
C
on
ti
ngency
A
na
l
ys
i
s
R
esu
lt
s
• How many contingencies...
...
system
information
•
23 bus system
•
23
bus
system
• System divided in 3 areas:
• FLAPCO
• LIGHTCO
• WORLD
• Voltage levels: 500kV, 230 kV, 21.6kV, 20kV, 18kV, and 13. 8kV
•
No motors present
•
No
... You
Converting Loads and Generators
13
DYNAMIC SIMULATION SETUP
Converting
Loads
and
Generators
1. Go to Power Flow menu
2. Select: Convert Loads and
Generators
3. Convert Generators: Select ...
branches
eBook for You
Plotting the recorded channels
37
PLOTTING THE OUTPUTS
Plotting
the
recorded
channels
• Click on channel 3 and drag it to the channel plot to view the angle of
machine...