phần 4 khóa đào tạo tính toán ổn định và ứng dụng trên phần mềm psse cho kỹ sư hệ thống điện nguyên tắc mô phỏng ổn định động và thư viện mô hình mô phỏng trên phần mềm psse
... flow
()p
eBook for You
Performance Verification
48
OVERVIEW OF SIMULATION PROCEDURE
Performance
Verification
Transient response to a step change
[IEEE421.2-1990]
eBook for You
Dynamic Simulation ...
mechanical powers, stabilizer outputs, excitation
limiter outputs
4: Apply special calculations in initialization of
4:
Apply
special
calculations
in
initialization
of
induction ... control systems
CONEC: responsible for all other models
eBook for You
General Classification
4
CLASSIFICATION OF VARIABLES
General
Classification
Constants: Parameters that do not vary
...
...
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
= ... Exciters 2
49
EXCITER MODELS IN PSS®E
DC
Exciters
2
EXDC2 and ESDC2A
Sample data
K
300
E
305
K
A
=
300
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
= ... Excitation Systems
14
TYPES OF EXCITERS
DC
Excitation
Systems
The field voltage values E
1
and E
2
should
The
field
voltage
values
E
1
and
E
2
should
normally be chosen near the...
...
Models
GAST
Typical parameters
Typical
parameters
eBook for You
Hydro Turbine Models
42
GOVERNOR MODELS IN PSS®E
Hydro
Turbine
Models
HYGOV
Typical parameters
eBook for You
Steam ...
diagonal
flow
Deriaz
turbines
with adjustible runner blades
eBook for You
Gas Turbine Models
49
GOVERNOR MODELS IN PSS®E
Gas
Turbine
Models
GAST
Model
Model
eBook for You
Steam ...
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 turbine-governor models are
designed to give representations...
...
the new machine base (40 00 MVA) are the
the
new
machine
base
(40 00
MVA)
are
the
following:
puX 0072.1
1
B 40 00 MVA
puX
puX
7556.1
0100.1
0
2
1
B
ase:
40 00
MVA
eBook for ... is
equivalentcompletemachine
X
X
X
X
puX
pu
X
043 89
0
02525.0
02518.0
2
1
Base: 100 MVA
pu
X
043 89
.
0
0
eBook for You
Vietnamese Power System
21
REDUCED POWER SYSTEM
Vietnamese
Power
System
4. Islanded buses
Repeat ... the
external system and find the new short-circuit
le el
le
v
el
The chosen value for the equivalent machine
base is 40 00 MVA. This will represent the
contribution of the external system
eBook...
... 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, 6, 8, 9,
10, 11 and 14, we placed a fixed shunt ... 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 You
The IEEE 1996
Reliability Test System
4
SYSTEM COMPONENTS
• ... 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...
... 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 Used for Dynamic File
41
DYNAMIC ... (TGOV1)
Steam
turbine
(TGOV1)
H d t bi (HYGOV)
H
y
d
ro
t
ur
bi
ne
(HYGOV)
eBook for You
49
MODEL VERIFICATION
MODEL
VERIFICATION
eBook for You
Salient Pole Generator Model
17
DYNAMIC ... generator model
GENSAL: Salient pole generator model
eBook for You
Models Used for Dynamic File
42
DYNAMIC FILE
Models
Used
for
Dynamic
File
Generator at bus 100 (x3)
eBook for You
Models...
... transmission lines
eBook for You
Calculation of
Eigenvalue
40
NEVA – PSS NETOMAC
Calculation
of
Eigenvalue
eBook for You
Introduction
34
NEVA – PSS NETOMAC
Introduction
Program used for modal ... You
Mode Overview
19
SMALL-SIGNAL STABILITY
Mode
Overview
eBook for You
EIGEN
-
VALUE ANALYSIS
4
EIGEN
VALUE
ANALYSIS
Applied to a Linearized Model of the Power
System
System
Importance...
... 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
–
N
-
1
... 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, 11 and 14, ...
right
eBook for You
44
N-1 CONTINGENCY ANALYSIS
Preparing the input files for the DFAX file
• Write a subsystem file defining the whole
system as well a subsystem for each area
eBook for You
48
N-1 CONTINGENCY...
... Initialization Errors
25
DYNAMICS DATA VERIFICATION
Governors
• Bus 18
• Mbase= 44 8MVA
• Pmax= Vmax*Mbase= 0.85 *44 8=380.8 MW < Pinit (40 0MW)
• Therefore, change Vmax to 1pu
• Bus 22
• Mbase= 775MVA
• Pmax= ... SYSTEM 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 ... 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 IEEE 24 saved case...
... 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
IEEE 24 – ... Stability using NEVA
34
IEEE 24 – SMALL SIGNAL STABILITY
Small
Signal
Stability
using
NEVA
• PSS at bus 7 (more unstable)
eBook for You
Small Signal Stability using NEVA
35
IEEE 24 – SMALL SIGNAL ... 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
IEEE 24 – SMALL SIGNAL STABILITY
Small
...
... par
t
o
f
th
e commen
t
A line can be commented by ALT+3 and
tdb ALT +4
uncommen
t
e
d
b
y
ALT +4
eBook for You
Loops
49
CONTROL FLOW TOOLS
Loops
For loop statements
Block repeatedly executed ...
Identifiers
Reserved words
eBook for You
Decision Making
42
CONTROL FLOW TOOLS
Decision
Making
IF…ELSE statements
eBook for You
Decision Making
40
CONTROL FLOW TOOLS
Decision
Making
IF statements
eBook ... TOOLS
Operators
Python membership operators
Python identity operators
eBook for You
Strings
24
VARIABLES
Strings
Set of characters between quotation
marks
marks
>>>str1 = 'Hello...
...
DISTRIBUTION
A Division of Global Power
POWER SYSTEM STABILITY CALCULATION TRAINING
D 14
15
A t ti i P th
D
ay
14
-
15
-
A
u
t
oma
ti
on us
i
ng
P
y
th
on
December 5, 2013Prepared by: Mohamed El ...
element
or
modify an existing one
BUSDATA3
BUS
_
DATA
_
3
BRANCH_DATA
LOAD_DATA _4
TWO_WINDING_DATA _4
PLANT_DATA
MACHINE_DATA_2
eBook for You
CASE
16
POWER FLOW OPERATION
CASE
Use ... a
=
1, b
=
2):
def
temp
(
a
1,
b
2):
print a
print b
print
b
return
temp(
i
4)
temp(
_
i
,
4)
eBook for You
Modules for Python
13
PSS®E EXTENSION MODULES
Modules
for
Python
El
PidPthf...
... 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
... generators
eBook for You
49
PV ANALYSIS
PV Analysis
• We are
going to
study the
maximum
maximum
power
transfer
from the
Central
Region to
the South
eBook for You
Limit Checking Reports
14
LOAD FLOW ... contin
g
enc
y
solution out
p
ut file and
gy p
solve
eBook for You
Short-Circuit Analysis
Rl
220kV
47
SHORT-CIRCUIT ANALYSIS
R
esu
l
ts –
220kV
• Is the fault
level at this
bus
bus
acceptable?
Iit
•
I
s...
... Flow menu
2. Select: Convert Loads and
Generators
3. Convert Generators: Select
Zsorce
4
CtttMVAld
4
.
C
onver
t
cons
t
an
t
MVA
l
oa
d
s:
• If active power is 100%
constant current
,
...
d
a
t
a o
f
thi
s
d
ynam
i
cs
fil
e
t
o
th
e a
l
rea
d
y
existing data
• So in this case, choose the dynamics data file
option
eBook for You
Running the system before any faults
29
RUNNING ...
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...