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