nisheeth singh ch wam - epcc workshop 3/nisheeth... · epcc, lofthus, 2007 june 10 th-13 th 1/25 1....

EPCC, Lofthus, 2007 June 10th-13th 1/25

1. Why WAM

2. First Wide Area Application

3. System Structure

4. Monitoring of UCTE power system stability

5. Outlook

6. References

Content


UCTE

NORDEL

UKTSOA

ATSOI

Border between UCTE North and South

Coordination center UCTE South – ETRANS, Switzerland

Coordination center UCTE North – RWE, Germany

Union for the Coordination of Transmission of Electricity

Mission: define technical rules for the use of the

transmission system

CH operating figures

7.3 million inhabitants

Peak load: 9.5 GW

Electric energy consumption/year: 59 TWh

UCTE operating figures

450 million inhabitants

Peak load: 300 – 370 GW

Electric energy consumption/year 2368 TWh

3% consumption

10% cross-border transit

Switzerland in the Middle of the System


CH System in the Middle of High Transits


WAM System Applications

• Transmission corridor monitoring

• Monitoring of power system stability

• Backbone for power system restoration


Corridor Monitoring


Monitoring more than one’s own system operation 10.04.2005 21:06:30 - Outage: Slovenia-Italy Link (Divaca-Redipuglia, Divaca-Padriciano)

1278 MW for complete Interconnection

0

2.5

5

7.5

10

21:05:45 21:06:00 21:06:15 21:06:30 21:06:45 21:07:00 21:07:15 21:07:31

∆φ [°]

550

600

650

700

750

800

850

900

950

1000

P [MW]

active Power: Lavorgo - Mettlen

100 MW

active Power: Soazza - Bulciago

voltage phase angle difference: Bassecourt - Soazza

voltage phase angle difference: Bassecourt -Lavorgo

~1.5°

~2.5°


Ceuta

Merged WAM Recordings


Ceuta

Locations of collected PMU data

Bassecourt

Mettlen

Lavorgo

Soazza

Robbia 1+2

Bulciago

Vignole

Latina

Ag. Stefanos

Wien SO

Ternitz

Zerjavinec

Tumbri

Divaca


Three islands system operation

All measurements are synchronised by GPS signal

48.8

49

49.2

49.4

49.6

49.8

50

50.2

50.4

50.6

50.8

51

51.2

51.4

51.6

04.11.2006 22:00:00 04.11.2006 22:10:00 04.11.2006 22:20:00 04.11.2006 22:30:00 04.11.2006 22:40:00 04.11.2006 22:50:00 04.11.2006 23:00:00

f [Hz]

frequency Bassecourt frequency Ag. Stefanos frequency Ternitz


39 Minutes of Network islanding


48.8

49

49.2

49.4

49.6

49.8

50

50.2

50.4

50.6

50.8

51

51.2

51.4

51.6

04.11.2006 22:00:00 04.11.2006 22:10:00 04.11.2006 22:20:00 04.11.2006 22:30:00 04.11.2006 22:40:00 04.11.2006 22:50:00 04.11.2006 23:00:00

f [Hz]



Resynchronisation

22:47:23.400

22:49:26.300


49.7

49.9

50.1

50.3

50.5

50.7

50.9

51.1

04.11.2006 22:35:00 04.11.2006 22:40:00 04.11.2006 22:45:00 04.11.2006 22:50:00

f [Hz]



WAM Application during UCTE Resynchronisation

ZONE 2

ZONE 1

PMU

PMU

Peak Load: 223 GW

Peak Load : 21 GW

PMU

PMU

2004 October 10th 9:34 – 10:58

Zagreb

European Electrical Reunification

5 x 380 kV

2 x 220 kV

1 x 110 kV


On-Line Monitoring of System Stability during UCTE System 1 and 2 Resynchronisation – 2004 Oct 10th

49.96

49.97

49.98

49.99

50

50.01

50.02

50.03

50.04

50.05

09:33:40 09:33:50 09:34:00 09:34:10 09:34:20 09:34:30 09:34:40

October 10th 2004

Frequency / Hz

Mettlen (CH)

Ag. Stefanos (GR)

Zone 2

Zone 1

first line

close


System Structure

CommunicationSwitchgear Cubicle-PMU Data Concentrator

Current & Voltage

Phasor

Frequency

Accuracy

0.1 Degree

1 mHz

Time Resolution

20 msec

Substation

Feeder

VT, CT

Data Export

Alarms

Informa-

tion

Filter

SCADA

System


User Interface & System Functions


Ceuta

Ceuta

Bassecourt

Mettlen

Lavorgo

Soazza

Robbia

Divaca

Ag. Stefanos

Wien SO

Ternitz

Zerjavinec

Tumbri

ThessalonikiSchaltanlage mit Transformatoren

Leitung mit 220kV in Betrieb


Schaltanlage mit Transformatoren



Legende:

Schaltanlage

Legende:

Schaltanlage

Wide Area Monitoring –

Early W

arning System


Data Transfer Chain


WAM Information within SCADA System 1

4085

0

406

-7

404

-10403

-19403

-10404

Legend

LocationVoltage

Angle difference


WAM Information within SCADA System 2

Netzpendelverhalten

Legend

LocationFrequency

Angle difference

METL50.024

0METL

50.024

0

50.021

- 30STEF

50.021

- 30STEF

THESTHES

ZERJZERJ

DIVADIVA

TERNTERN


Power System Oscillation Detection

0

5

10

15

20

25

30

35

40

45

50

08:00:00 08:05:00 08:10:00 08:15:00 08:20:00 08:25:00 08:30:00

Amplitude [MW]

-100

-80

-60

-40

-20

0

20

40

60

80

100

Dämpfung [%]

Amplitude Soazza Dämpfung Soazza

-11 %

14 MW

2007, April 1st


800

820

840

860

880

900

920

940

960

980

1000

08:00:00 08:05:00 08:10:00 08:15:00 08:20:00 08:25:00 08:30:00

P [MW]

Mettlen - Lavorgo Sils - Soazza Robbia - San Fiorano Robbia - Gorlago

UCTE North-South Inter-Area Oscillation

2007, April 1st


920

930

940

950

960

970

980

990

1000

08:14:00 08:14:30 08:15:00 08:15:30 08:16:00 08:16:30 08:17:00 08:17:30 08:18:00

P [MW]

3 Minuten

4 Sekunden

25 MW

2007, April 1st

Robbia-Gorlago Active Power Flow


Voltagephase Angle - Indication of Network loading

Voltagephase Angle(º)

Fig. D1a: Voltage phase

angle differences in the

UCTE system at 22:00

/ELES/

Quelle: UCTE Abschlussbericht

zur Systemstörung 4. Nov. 2006

Initial loadingbefore disturbance


WAM Measurements Visualisation Example


PMUs in Slovenia

MARIBOR

KRŠKO

OKROGLO

DIVAČČČČA

BERIČČČČEVO

PODLOG

HR

AT

IT

REDIPUGLIA

KAINACHTAL

MELINA

TUMBRI

S l o v e n i a

HUHEVIZ

ERNESTINOVO

ZERJAVINEC


Data Visualization

Source: ELES


Monitoring System Damping in Real-Time

-10

0

10

20

30

40

50

60

70

80

90

14:27:00 14:27:30 14:28:00 14:28:30 14:29:00 14:29:30 14:30:00

Damping [%]; Frequency 100 [Hz];

Angle [°]

49.825

49.845

49.865

49.885

49.905

49.925

49.945

49.965

49.985

50.005

50.025

Frequency [Hz]

Damping [%] Eigen-Frequency*100 [Hz] Oscillation magnitude*10 [°deg]

dφ: Ag.Stefanos-Bassecourt [°deg] Frequency Bassecourt [Hz] Frequency Ag.Stefanos [Hz]


Use of WAMS

•Monitoring of voltage angle between substations

•Stability monitoring

•Post-mortem analyses

•Modeling improvement

•Measurement of line temperature

•Real-Time monitoring of System Damping


Conclusion and Outlook

• Successful Implementation of WAM Technology

• Comprehensive System Information based on few measurements

• Link between on-line dynamic system monitoring and steady-state SCADA overview

• Key Points

• Reliable communication infrastructure

• GPS satellite visibility

• Intelligent data computation and storage

• Basis for UCTE wide awareness system

• Measurements of strategic substations with own GPS time stamp

• Central Data acquisition and web-based data distribution


References

W. Sattinger, R. Baumann, Ph. Rothermann, “A New Dimension in Grid Monitoring”, Transmission and Distribution World, February 2007

W. Sattinger, J. Bertsch, P. Reinhardt, “Operational Experience with Wide Area Monitoring Systems”, B5-216, CIGRE 2006 Session, August 27th – September 1st Paris

W. Sattinger, “Methods of Processing Provided Information and Use of Monitoring Results for Power System Dynamic Characteristic Analysis – Monitoring of Power System Dynamic Performance”, Tutorial Part 2, CIGRE 2006 International Scientific Conference –Monitoring of Power System Dynamics Performance, April 25-27 2006, Moscow

P. Reinhard, C. Carnal, W. Sattinger, “Reconnecting Europe”, Power Engineering

International, January 2005

nisheeth singh ch wam - epcc workshop 3/nisheeth... · epcc, lofthus, 2007 june 10 th-13 th 1/25 1....

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