phần 8 khóa đào tạo tính toán ổn định và ứng dụng trên phần mềm psse cho kỹ sư hệ thống điện thực hiện tính toán mô phỏng trên phần mềm psse với hệ thống điện 24 nút của ieee
... window to the plot
eBook for You
39
IEEE 24 – DYNAMIC ANALYSIS
eBook for You
The IEEE 1996
Reliability Test System
4
SYSTEM COMPONENTS
• Two areas (230kV &
138kV)
• 21 branches
•
10 generators ... the shunts on the low
voltage side?
eBook for You
22
IEEE 24 – SHORT-CIRCUIT
ANALYSIS
eBook for You
Negative and Zero Sequence Parameters
24
• Negative-sequence impedance is equal to positive-
sequence ... factor data file
N-1 CONTINGENCY ANALYSIS
eBook for You
10
IEEE 24 – N-1 CONTINGENCY
ANALYSIS
eBook for You
AC Contingency Analysis Report
18
• Go to Power
Flow, Reports,
AC Contingency
reports...
...
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,
i
n par
ti
cu
l
ar ...
used
nowadays
eBook for You
DC Exciters 1
45
EXCITER MODELS IN PSS®E
DC
Exciters
1
IEEET1, IEET1A, IEEEX1 and ESDC1A
Sample data
K
46
E
31
K
A
=
46
E
1
=
3
.
1
T
A
= 0.06 E
2
= 2.3
T
B
= ... Exciter Models in PSS®E
• Identification of Typical Exciters
eBook for You
DC Excitation Systems
18
TYPES OF EXCITERS
DC
Excitation
Systems
Separately excited exciter (requires a
“ilt” it...
... flow
()p
eBook for You
Performance Verification
48
OVERVIEW OF SIMULATION PROCEDURE
Performance
Verification
Transient response to a step change
[IEEE4 21.2-1990]
eBook for You
Dynamic Simulation ...
initialized outside of prescribed limits
eBook for You
Exam
p
le of Power S
y
stem D
y
namic
8
CLASSIFICATION OF VARIABLES
pyy
Simulations
Sequence of Calculation:
Sequence
of
Calculation:
4. ... SIMULATION SEQUENCE
CONEC
and
CONET
during
RUN
eBook for You
Dynamic Simulation Control Flags
28
DYNAMIC SIMULATION SEQUENCE
Dynamic
Simulation
Control
Flags
MSTATE
MSTATE
0: Standard...
... TGOV3
Modification of IEEEG1 and PTI recommended
Modification
of
IEEEG1
and
PTI
recommended
model for fast valving studies
Same definitions used for IEEEG1 can be used
P
RMAX
has ... by Pelton water-wheel, Turgo
turbines and Cross-flow turbines
eBook for You
Steam Turbine Models
24
GOVERNOR MODELS IN PSS®E
Steam
Turbine
Models
TGOV2
Unique model where the user must ... o
ff
a
ft
er c
l
osure o
f
th
e
i
n
t
ercep
t
va
l
ve
eBook for You
Hydro Turbine Models
38
GOVERNOR MODELS IN PSS®E
Hydro
Turbine
Models
HYGOV
Represents a straightforward hydro...
...
File
Generator at bus 201
eBook for You
Governor Models
24
DYNAMIC FILE
Governor
Models
General model (IEEEG1)
General
model
(IEEEG1)
Gas turbine (GAST)
Gas
turbine
(GAST)
Steam ...
for
Dynamic
File
Governor at bus 201
eBook for You
IEEE T
yp
e 1 S
p
eed-Governin
g
Model
25
DYNAMIC FILE
yp p
g
(IEEEG1)
IEEE recommended general model for
steam turbine and can ... You
Salient Pole Generator Model
18
DYNAMIC FILE
(GENSAL)
STATEs used
for
calculation
Format to be
written in
DYR file
eBook for You
H
y
dro Turbine Governor Model
28
DYNAMIC FILE
y
(HYGOV)
Straightforward...
... Modes
FrequencyRange(0.1to0.8Hz)
LargeNumberofGenerators
GeneratorsinoneAreaswing againstOtherAreas
k
Wea
k
Inter‐AreaTieLines
LowFrequency/WeakDamping
Local Modes
FrequencyRange(0 .8 to3Hz)
SmallNumberofGeneratorsinaSmallArea
HighFrequency/StrongDamping
eBook ... low
Damping: relatively weak
POD if necessary: PSS, FACTS, TCSC…
eBook for You
Modal Analysis
8
SMALL-SIGNAL STABILITY
Modal
Analysis
Example of a multi
–
machine system
Example
of
... 33
NEVA
–
PSS NETOMAC
NEVA
–
PSS
NETOMAC
eBook for You
Nature of Modes
28
SMALL-SIGNAL STABILITY
Nature
of
Modes
Inter-area/global modes
Natural frequency: 0.1...
... Study
–
IEEE 24 Bus Test System
Day
12
-
Case
Study
–
IEEE
24
Bus
Test
System
PART 1
July 19, 2013Prepared by: Frida Ceja-Gomez
eBook for You
42
IEEE 24
–
N
-
1 CONTINGENCY
IEEE
24
... 3
IEEE 24
–
SAVED CASE
IEEE
24
–
SAVED
CASE
BUILD-UP
eBook for You
38
LOAD FLOW ANALYSIS
Correcting the voltage issues
• To address the low voltage at buses 4, 5, 6, 8, 9,
10, ... for You
Branch Data
7
SAVED CASE BUILD-UP
Branch
Data
• The transmission line data for the IEEE 24- bus system can be found in
the table below
eBook for You
47
N-1 CONTINGENCY ANALYSIS
Creating...
... VERIFICATION
Governors
• Bus 18
• Mbase= 448MVA
• Pmax= Vmax*Mbase= 0 .85 *4 48= 380 .8 MW < Pinit (400MW)
• Therefore, change Vmax to 1pu
• Bus 22
• Mbase= 775MVA
• Pmax= Vmax*Mbase= 0 .85 *775=6 58. 75 MW < Pinit ... 24
–
BUILDING A
IEEE
24
–
BUILDING
A
DYNAMICS DATA FILE
eBook for You
Dynamics Data File Verification
18
DYNAMICS DATA VERIFICATION
Dynamics
Data
File
Verification
•
Prepare the IEEE24 saved ... STABILITY 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:...
... to
choose the
right settings
• Select the
source and sink
subsystems
eBook for You
10
IEEE 24
–
QV
ANALYSIS
IEEE
24
–
QV
ANALYSIS
eBook for You
Long
Term Voltage Stability
24
IEEE24 – ... Stability using NEVA
29
IEEE 24 – SMALL SIGNAL STABILITY
Small
Signal
Stability
using
NEVA
• Maximum participated state
eBook for You
Small Signal Stability using NEVA
28
IEEE24 – SMALL SIGNAL ... You
Underfre
q
uenc
y
Load Sheddin
g
18
IEEE24 – LONG TERM STABILITY
qy g
Models (LDSH)
Typical data for LDSHAL
eBook for You
Small Signal Stability using NEVA
32
IEEE 24 – SMALL SIGNAL STABILITY
Small
...
... arithmetic operators
eBook for You
Operators
38
CONTROL FLOW TOOLS
Operators
Python membership operators
Python identity operators
eBook for You
Strings
24
VARIABLES
Strings
Set of characters ... Python logical operators
a=True and b=True
a=True
and
b=True
eBook for You
Waiting for the User
18
BASIC SYNTAX
Waiting
for
the
User
The following line of the program displays
th t “P...
... impedances
111
The result is
equivalentcompletemachine
X
X
X
X
puX
pu
X
04 389
0
02525.0
025 18. 0
2
1
Base: 100 MVA
pu
X
04 389
.
0
0
eBook for You
Vietnamese Power System
21
REDUCED POWER SYSTEM
Vietnamese
... for both
cases
cases
Complete system
Reduced system
eBook for You
Steps for Equivalent Network
8
REDUCED POWER SYSTEM
Steps
for
Equivalent
Network
3. Removal of External Buses
1. After ... systems
system
that
connect
to
external
systems
through branches
eBook for You
KPAUSE
38
NON-STANDARD MODELS USING FORTRAN
KPAUSE
Indicates the type of time step calculation
KPAUSE...
...
Contingency
Contingency
reports to generate
a report of the non-
converged cases
eBook for You
48
VIETNAM SYSTEM
–
VOLTAGE
VIETNAM
SYSTEM
–
VOLTAGE
STABILITY
eBook for You
44
SHORT-CIRCUIT ... ANALYSIS
Short
-
Circuit
Short
Circuit
Results for the
500kV Buses
(Flat pre-fault
diti )
con
diti
ons
)
eBook for You
28
N-1 CONTINGENCY ANALYSIS
Contingencies causing non-convergence
• For the loss of line from Bus...
... divided in 3 areas:
• FLAPCO
• LIGHTCO
• WORLD
• Voltage levels: 500kV, 230kV, 21.6kV, 20kV, 18kV, and 13.8kV
•
No motors present
•
No
motors
present
• Generators, fixed shunts, passive loads, ... flow report
8
INTRODUCTION TO THE TEST SYSTEM
Example
1
–
Inter
-
area
flow
report
• Go to the Power Flow menu, Reports, Area / zone based reports
• Select Inter area / zone flow, choose output ...
1
• A list of the recorded channels will now be visible
eBook for You
Removing the disturbance
48
RUNNING A DYNAMIC SIMULATION 2
Removing
the
disturbance
• We again follow the
same procedure...