Modeling Electrical
Systems With EMTP-RV
EMTP-RV Package includes:
- EMTP-RV, the Engine;- EMTPWorks, the GUI;- ScopeView, the Output Processor.
EMTP-RV key features: Reference in transients simulation
Solution for large networks
Provide detailed modeling of the network component including control, linear and non-linear elements
Open architecture coding that allows users customization and implementation of sophisticated models
New steady-state solution with harmonics
New three-phase load-flow
Automatic initialization from steady-state solution
New capability for solving detailed semiconductor models
Simultaneous switching options for power electronics applications
EMTP-RV Applications:
Lightning surges
Switching surges
Temporary overvoltages
Insulation coordination
Power electronics and FACTS
General control system design
Power Quality issues
Capacitor bank switching
Series and shunt resonances
Ferroresonance
Motor starting
Steady-State analysis of unbalanced system
Distribution networks and Distributed generation
Power system dynamic and load modeling
Subsynchronous resonance and shaft stresses
Power system protection issues
EMTP-RV is suited to a wide variety of power system studies including and not limited to:
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
1 1
2 2
3 3
4 4
5 5
www.emtp.comEMTP-RV Advanced Practical Applications
Variable Static Load Modelingand Machine Dynamics
Wind Power & Multi-Machine Transient Stability of Large Networks
Arc Instability behind ShuntReactor Breaker Failures
Lightning Strike Near a 765 kV GIS
765 kV River Crossing with theSpecial Use of Line Arresters
SM
SM1
?m
13.8kV450MVA
Ef
Efss
PeOmega_1
ASM S
ASM1
6.6kV11000hp
SpeedT m
Windmil l
DEV2
S ASM
DEV4
DEV6
+
+d
q
DPIM1
?m
0.25hp
T m
Speed
T eg
Single-phase Induction Machine
C L
SV
C_
1
Np,NqKp,Kq
Z Dist
MW,MX,PF
Va,Vb,Vc
60 Hz only
DEV9
Np,NqKp,Kq
MW,MX,PF
Va,Vb,Vc
60 Hz only
DEV10
Simulation OptionsLoad-Flow solution
- The electrical network equations are solved using complex phasors. The active (source) devices are only the Load-Flow devices (LF-devices). A load device is used to enter PQ load constraint equations.
- Only single (fundamental) frequency solution is achievable in this version. The solution frequency is specified by ‘Default Power Frequency’ and used in passive network lumped model calculations.
- The same network used for transient simulations can be used in load-flow analysis. The EMTP Load-Flow solution can work with multiphase and unbalanced networks.
- The control system devices are disconnected and not solved.
- This simulation option stops and creates a solution file (Load-Flow solution data file). The solution file can be loaded for automatically initializing anyone of the following solution methods.
Steady-state solution - The electrical network equations are solved using complex numbers. This option can be
used in the stand-alone mode or for initializing the time-domain solution.
- A harmonic steady-state solution can be achieved.
- The control system devices are disconnected and not solved.
- Some nonlinear devices are linearized or disconnected. All devices have a specific steady-state model
- The steady-state solution is performed if at least one power source device has a start time (activation time) lower than 0.
Time-domain solution
- The electrical network and control system equations are solved using a numerical integration technique.
- All nonlinear devices are solved simultaneously with network equations. A Newton method is used when nonlinear devices exist.
- The solution can optionally start from the steady-state solution for initializing the network variables and achieving quick steady-state conditions in time-domain waveforms.
- The steady-state conditions provide the solution for the time-point t=0. The user can also optionally manually initialize state-variables.
Frequency scan solution - This option is separate from the two previous options. All source frequencies
are varied using the given frequency range and the network steady-state
solution is found at each frequency.
Simulation Options (Con’t)
EMTPWorks features: Object-oriented design fully compatible with Microsoft Windows
Powerful and intuitive interface for creating sophisticated Electrical networks
Drag and drop device selection approach with simple connectivity methods
Both devices and signals are objects with attributes. A drawing canvas is given the ability to create objects and customized attributes
Single-phase/three-phase or mixed diagrams are supported
Advanced features for creating and maintaining very large to extremely large networks
Large number of subnetwork creation options including automatic subnetwork creation and pin positioning. Unlimited subnetwork nesting level
Options for creating advanced subnetwork masks
Multipage design methods
Library maintenance and device updating methods
Built-in Libraries:advanced.clf Provides a set of advanced power electronic devices
Pseudo Devices.clf
Provides special devices, such as page connectors. The port devices are normally created using the menu “Option>Subcircuit>New Port Connector”, they are available in this library for advanced users.
RLC branches.clf Provides a set of RLC type power devices. .
Work.clf This is an empty library accessible to users
control.clf The list of primitive control devices.
control devices of TACS.clf This control library is provided for transition from EMTP-V3. It imitates EMTP-V3 TACS functions.
control functions.clf Various control system functions.
control of machies.clf Exciter devices for power system machines.
flip flops.clf A set of flip-flop functions for control systems.
hvdc.clf Collection of dc bridge control functions. Documentation is available in the subcircuit.
lines.clf Transmission lines and cables.
machines.clf Rotating machines.
meters.clf Various measurement functions, including sensors for interfacing control device signals with power device signals.
meters periodic.clf Meters for periodic functions.
nonlinear.clf Various nonlinear electrical devices.
options.clf EMTP Simulation options, plot functions and other data management functions.
phasors.clf Control functions for manipulating phasors.
sources.clf Power sources.
switches.clf Switching devices.
symbols.clf These are only useful drawing symbols, no pins.
transformations.clf Mathematical transformations used in control systems.
transformers.clf Power system transformers.
Built-in Library of Examples:
ScopeViewScopeView is a data acquisition and signal processing softwareadapted very well for visualisation and analysis of EMTP-RV results.It may be used to simultaneously load, view and process data from applications such as EMTP-RV, MATLAB and Comtrade format files.
Multi-source data importation Cursor region information
ScopeView (Con’t)
Function editor of ScopeView Typical mathematical post-processing
Typical Designs:A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
1 1
2 2
3 3
4 4
5 5
CVT
48 m 52 m
25 m
30 km 300 m 300 m
Insulation Coordination of a 765 kV GIS
Network 765 kV Line
PowerTransformer
588 kV Zno
To eliminateundesirable reflexions
Gas-Insulated SubstationAir-Insulated Substation
Gas-filledBushing
Open Circuit-Breaker
Gas-filledBushingInductive VT 588 kV Zno
Air-Insulated Substation
200 kA 3/100 usLightning Stroke
- Backflashover Case- Impulse Footing Resistance of the stricken Tower may be represented by Ri = f(I)- Usage of ZnO model based on IEEE SPD WG- Frequency-Dependant Line modeling
+ C1
+ C2
+ C3
+?i
L1
+?i
L2 +?i
L3
+
+
48 +
+
+
+
+
+
+
52
+
4nF
+
4nF
+
4nF
+
+
+
VM+
bushing
?v/?v/?v
VM +CB_a
?v
VM +CB_b
?v
VM +CB_c
?v
VM+ ?v
Tower_top
LINE DATA
model in: foudre_300m_ex1_rv.pun
foudre_300m_ex1.lin
+
1M
+
1M
+
1M
Simulationoptions
I/O FILES
+
+
+
TOWER1
Part=TOWER_model15_1
+ + +
TOWER2
Part=TOWER_model15_f
LIGHTNING_STROKE
TOWER3
Part=TOWER_model1ohm
LINE DATA
model in: foudre_30km_ex2_rv.pun
foudre_30km_ex2.lin
VM +cond_c
?v
VM+Trans_c
?v
VM+Trans_b
?v
VM+Trans_a
?v
+
+
+
+
0.1nF
+
0.1nF
+
0.1nF
+?i
L10 +
?i
L11 +
?i
L12
+
735kV /_0
SOURCE_NETWORK
MPLOT
a
b
c
BUS_NET
c
b
a
c
b
a
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
1 1
2 2
3 3
4 4
5 5
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
1 10 0
2900 mm
2x x
g = 12 mm
x= 710 mm
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
280 km 40%
40%140 km 140 km
220 km
220 km
20%10% 5%30% 20%15%
pF=88%
1560 M W Res.-Com.-Ind. Load
Large Gen.-Load Center40 M W
45 M W
240 M W
132 M W
520 M W
76 M W
162 M W
1600 M W240 M X
4 x (10 X 2 MW) induc. machine pf 0.85
2 x 240 M W
180 M W
8250 M W
900 M W+/- 150 M XSVC
+/- 30 MVARSSTATCOM
3 x 1M W Doubly-fedwith PWM controller(Variable speed)
77 M W WIND IM GENERATION(Constant speed)
200 M W
9000 M W
1300 M W
+/- 400 M vars STATCOM in Substation B
2
3
1
500/13.8/13.8
2
3
1
In1 Out1
In2 Out2
Subs tation_A
+
+ +
2
3
1
500/230/50
2
3
1
500/230/50
+
96uF
+
96uF
+
1
?i
R1
+
+
+
+
In1 Out1
In2 Out2
Subs tation_C
Sim ulationoptions
+
+
0 .3uF
+
0 .05uF
I/O FILES
Ser_C_1
Ser_C_2
12
13.8/230
12
13.8/230
12
13.8/230
12
13.8/230
CP+
144.8
CP +
96.5
CP+
50
1269/225
CP2
+
290
CP+60
+
48uF
23
1
500/230/50
+
48uF
CP+
19
3.1
PQ
p1
Subs tation_B
VM+m _Subs _B_230k V
?v /?v /?v
AVR&Gov(pu)
Out
IN
AVR_Gov _1
AVR&Gov(pu)
Out
IN
AVR_Gov _2
AVR&Gov(pu)
Out
IN
AVR_Gov _4
AV
R&
Go
v(p
u)
Ou
t
IN
AV
R_
Go
v_
5
av
r_g
ov
ern
or_
pu
AV
R&
Go
v(p
u)
Ou
t
IN
AV
R_
Go
v_
6
AV
R&
Go
v(p
u)
Ou
t
IN
AV
R_
Go
v_
7SM
?m
SM2
SM
13.8k V400MVA
?m
SM1
SM?m
SM3
SM?m
SM4
SM
13.8k V50M VA
?m
SM7
SM13.8k V
550MVA
?m
SM6
SM 13.8k V
200MVA
?m
SM5
AVR&Gov(pu)
Out
IN
AVR_Gov _9
SM
13.8k V200MVA
?m
SM9
SM
13.8k V125MVA
?m
SM8
AVR&Gov(pu)
Out
IN
AVR_Gov _8
1 2
13.8/230
Np, NqKp, Kq
Z Dist
M W,M X,PF
Va,Vb,Vc
60 Hz only
DEV4
Np,N
q
Kp,K
q
Z Dis
t
MW
,MX
,PF
Va
,Vb
,Vc
60 H
z on
ly
DEV3
scope Qt
scope Pt
VM+?v
m _Load_230k V
+
+
R2
2 .263
12
25.5/12
12
25.5/6.6
AS
MS
Smal l_ ind
?m
6.6k V770.M VA
AS
MS
Large_ind
?m
12k V385.M VA
+
2000uF
PQp3
scope
P_Load
scopeQ_Load
+
3700uF+
1410.uF
0.0130.22Ohm
12
?230/26.4
AV
R&
Go
v(p
u)
Ou
t
IN
AVR_Gov _10
SM
230k V12000MVA?
m
SM10
Np, NqKp, Kq
Z Dist
M W,M X,PF
Va,Vb,Vc
60 Hz only
DEV1
scopeQ_Ex c h
scope
P_Ex c h
AVR&Gov(pu)
Out
IN
AVR_Gov _3
12
69/3.3
SASM
SqCage_1
12
69/3.3
SASM
12
69/3.3
SASM
12
69/3.3
SASM
SqCage_4
12
YgYg_np4
230/71
+
0.1,0.5Ohm
+
0.04,0.2Ohm
+
0.2,1Ohm
+
0.1,0.5Ohm
+15uF
+-1/1E15/0
PQ
p2
VM+
m _69k V_wind
?v /?v /?v
2 3
1
500/230/50
+
1E15/1E15/01E15/1E15/01E15/1E15/0
Np,N
q
Kp,K
q
Z Dis
t
MW
,MX
,PF
Va
,Vb
,Vc
60 H
z on
ly
DEV2
PQ
p4
scopePt_windGen
scopeQt_WindGen
+
1E15/1E15/01E15/1E15/01E15/1E15/0
+
1
? i
R3
DEV6
Np, NqKp, Kq
M W,M X,PF
Va,Vb,Vc
60 Hz only
Fluo_l ight
Np, NqKp, Kq
M W,M X,PF
Va,Vb,Vc
60 Hz only
Inc an_l ight
Np, NqKp, Kq
M W,M X,PF
Va,Vb,Vc
60 Hz only
Color_Tv
+
-1/1
E1
5/0
+S
W6
-1/1
E1
5/0
12
?230/26.4
0.1
32
.2O
hm
CP2
+
110
CP2
+
80
C L
SV
C_
1
Np, NqKp, Kq
Z Dist
M W,M X,PF
Va,Vb,Vc
60 Hz only
DEV5
CP2
+
80
scopeQ_Stat_30
+RL1
+
C8
0.25uF
+
C12
0.25uF
1
2
69
/0.6
9
YgYg_np5
scopeQ_Var_s peed
scopeP_Var_s peed
v
v
PQ
p7
P Q
p6
+R4
50
+
5/5.1/05/5.1/01E15/1e15/0
+
1
? i
R5
BUS1
BUS7 BUS5BUS9
A
A
B
B
C
C
D
D
E
E
F
F
1 1
2 2
3 3
4 4
5 5
Small Industrial load
8 MW
Windmill Power GenerationIn a weak Power System
5 x 2 MVA Doubly-fedwith PWM controller(Variable Speed)
8 MW
20 MW
15 MW
6.5 MW
12 x 2 MVA Doubly-fedwith PWM controller(Variable Speed)
Weak Local 69 kVNetwork (150 MVA)
LL-g 6 cycles fault
- Realistic Wind Data;- Realistic DFIG Modeling;- Realistic Network & Load Models- Realistic Harmonic Distorsions & Dynamic Performances
11 MW
scopeP_Gr1
scopeQ_Gr1
1
269/6.6 YgD_1
0.11Ohm
VM+
?v
m1
P Q p1
scopeQ_netw
scopeP_netw
P Q p3
scopeP_Gr2
scope
Q_Gr_2
+
170uFA
SM
S
ASM1?
m6.6kV5000hp
AVR
in
out
AVR_SM1
1
269/13.8 YgD_2
+
69kV /_0
SM
13.8kV10MVA
?m
SM1
I/O FILES
DFIG_1
v
WIND1
1 2
69/0.69
YgD_3
DFIG_2
v
WIND2
+
+
+
1uF
+0.4k
+4
+
32Ohm
+100
+30
+
5nF
C3
+
5nF
C4
PQp2
+
5/5.1/05/5.1/01E15/1E15/0
?i
SW1+
1
Delay!h
+40nF
+
40nF
1
269/0.69
YgD_4
MPLOT
Np,NqKp,Kq
Z Dist
MW,MX,PF
Va,Vb,Vc
50/60 Hz
VLOADg1
Np,NqKp,Kq
MW,MX,PF
Va,Vb,Vc
50/60 Hz
VLOAD2
ScopeView Multi-column & Multi-page capability