Blackout in Sweden and
This presentation is the property of its rightful owner.
Sponsored Links
1 / 47

Blackout in Sweden and Eastern Part of Denmark 2003-09-23 PowerPoint PPT Presentation


  • 62 Views
  • Uploaded on
  • Presentation posted in: General

Blackout in Sweden and Eastern Part of Denmark 2003-09-23. Sture Lindahl 2003-1 0 - 05 Industrial Electrical Engineering and Automation [email protected] The Nordel System. The Affected Region. Outage Cost. Interrupted power  5 000 MW Average outage time  4 hours

Download Presentation

Blackout in Sweden and Eastern Part of Denmark 2003-09-23

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Blackout in sweden and eastern part of denmark 2003 09 23

Blackout in Sweden andEastern Part of Denmark2003-09-23

Sture Lindahl

2003-10-05

Industrial Electrical Engineering and Automation

[email protected]


The nordel system

The Nordel System

Sture Lindahl, LTH/IEA


The affected region

The Affected Region

Sture Lindahl, LTH/IEA


Outage cost

Outage Cost

  • Interrupted power  5 000 MW

  • Average outage time  4 hours

  • Outage cost  50 SEK/kWh

  • Total outage cost  1000 MSEK

Sture Lindahl, LTH/IEA


Consumption in sweden

Consumption in Sweden

  • Before outage  15 000 MW

  • Winter peak 25 000 - 27 000 MW

  • Section-4 power flow 2 200 MW

Sture Lindahl, LTH/IEA


Situation before disturbance

Situation before Disturbance

Sture Lindahl, LTH/IEA


Generation outages

Generation Outages

Gx

G1 & G2

G1, G2 & G3

G1 & G2

Sture Lindahl, LTH/IEA


Transmission outages

Transmission Outages

Sture Lindahl, LTH/IEA


The first event 12 30

The First Event (12:30)

  • The nuclear unit Oskarshamn G3 was ramped down from 1 135 MW to zero because of a problem with a valve in the feed-water system.

  • The ramping down of Oskarshamn G3 was initiated manually

  • The reduction of power took about one minute

Sture Lindahl, LTH/IEA


The first event 12 301

The First Event (12:30)

G3

Sture Lindahl, LTH/IEA


The system frequency

The System Frequency

Sture Lindahl, LTH/IEA


The system frequency1

The System Frequency

Sture Lindahl, LTH/IEA


The second event 12 35

The Second Event (12:35)

  • A disconnector in the 400 kV substation Horred failed (reason unknown) and caused a two-phase fault

  • Correct clearing of the fault was initiated from the busbar protection

  • The circuit breakers operated correctly

Sture Lindahl, LTH/IEA


Blackout in sweden and eastern part of denmark 2003 09 23

R

R

T

R

Varmgång

Sture Lindahl, LTH/IEA

Bilaga 3


Damaged disconnector

Damaged Disconnector

Sture Lindahl, LTH/IEA


Damaged disconnector1

Damaged Disconnector

Sture Lindahl, LTH/IEA


The second event 12 351

The Second Event (12:35)

Busbar Fault

Sture Lindahl, LTH/IEA


The second event 12 352

The Second Event (12:35)

Sture Lindahl, LTH/IEA


Voltage level

Voltage Level

Sture Lindahl, LTH/IEA


Voltage level1

Voltage Level

Sture Lindahl, LTH/IEA


Voltage level2

Voltage Level

Sture Lindahl, LTH/IEA


Voltage level3

Voltage Level

Sture Lindahl, LTH/IEA


Power flow

Power Flow

Sture Lindahl, LTH/IEA


Power flow1

Power Flow

Sture Lindahl, LTH/IEA


Power flow2

Power Flow

Sture Lindahl, LTH/IEA


Power flow3

Power Flow

Sture Lindahl, LTH/IEA


Tap changers

Tap Changers

Sture Lindahl, LTH/IEA


Tap changers1

Tap Changers

Sture Lindahl, LTH/IEA


Tap changers2

Tap Changers

Sture Lindahl, LTH/IEA


Blackout in sweden and eastern part of denmark 2003 09 23

Sture Lindahl, LTH/IEA


The system frequency2

The System Frequency

Sture Lindahl, LTH/IEA


The system frequency3

The System Frequency

Sture Lindahl, LTH/IEA


What we saw of the black out

What we saw of the black-out

Voltages and frequency recorded on 23 September 2003 at Chalmers

(Math Bollen, 24-9-2003)


Blackout in sweden and eastern part of denmark 2003 09 23

First a few words about the measurements.

These measurements were obtained by two different instruments

at two different locations in our building.

a Medcal monitor connected to the wall-outlet in my office (single

phase). This monitor records min, mean and max every minute.

Upon triggering a two-cycle sample of the waveform is obtained.

a Unipower monitor connected to the main busbar in our laboratory

(three phases). This monitor records min, mean and max every minute.

Upon triggering a 2.5-second record of the rms voltages is stored.

The clocks of the two monitors are not synchronous. The main voltage

dip (12:35 according to SvK) had the following time stamps:

Medcal: 12:41:06

Unipower: 12:31:11

Sture Lindahl, LTH/IEA


Blackout in sweden and eastern part of denmark 2003 09 23

0.5-cycle rms voltages during and after the main dip

oscillation

points to instability!

normal dip due to

two-phase-to-ground fault

time stamp: 12:31:11

Unipower

Sture Lindahl, LTH/IEA


Blackout in sweden and eastern part of denmark 2003 09 23

rms voltages six seconds later

cause of dips is unclear.

time stamp: 12:31:17

Unipower

Sture Lindahl, LTH/IEA


Blackout in sweden and eastern part of denmark 2003 09 23

frequency recordings during the whole afternoon: the three curves show

maximum, minimum and average over each 1-minute period

the main disturbance around 12:30

minor disturbance

around 18:00

MedCal

Sture Lindahl, LTH/IEA


Blackout in sweden and eastern part of denmark 2003 09 23

This shows the frequency variations during the first disturbance

in more detail

the main dip

was recorded here

loss of South Sweden

frequency remains high

due to loss of load

loss of Oskarhamn 3

loss of Ringhals 3+4

MedCal

Sture Lindahl, LTH/IEA


Recordings from odensala

Recordings from Odensala

Sture Lindahl, LTH/IEA


Voltage restoration

Voltage Restoration

  • The 400 kV network was essentially restored after 1 hour

Sture Lindahl, LTH/IEA


Genopretningen minut for minut

Genopretningen minut for minut

12.38Elkraft System forbereder at sætte spænding på hele højspændingsnettet

13.20Elkraft System venter på, at Kyndbyværket starter

13.41Vi får tilladelse til at koble os til Sverige – men kun med et meget lille forbrug (max. 200 MW)

13.46Østdanmark kobler til Sverige. Højspændingsnettet er i gang

Sture Lindahl, LTH/IEA


Genopretningen minut for minut1

Genopretningen minut for minut

13.54Elkraft System giver tilladelse til, at en del af forbrugerne får strøm igen:

  • Københavns Energi kan tilkoble forbrugere svarende til 50 MW

  • NESA kan tilkoble forbrugere svarende til 50 MW

  • SEAS kan tilkoble forbrugere svarende til 25 MW

  • NVE kan tilkoble forbrugere svarende til 25 MW

Sture Lindahl, LTH/IEA


Genopretningen minut for minut2

Genopretningen minut for minut

14.15Første kraftværksblok kører igen (Kyndbyværket)

14.16Svenska Kraftnät melder, at vi kun må trække 100 MW fra Sverige

14.31Asnæsværket blok 5 forsøger at starte, men kan ikke. Asnæsværket blok 2 forsøges herefter startet

14.53Stigsnæsværket blok 2 havarerer ved opstart

14.57Gasturbine på Masnedø kommer i gang (55 MW)

Sture Lindahl, LTH/IEA


Genopretningen minut for minut3

Genopretningen minut for minut

15.00Københavns Energi får lov at give ekstra10 procent af forbrugerne strøm

15.22Gasturbine på Kyndbyværket kommer i gang

15.25Yderligere 10 procent af forbrugerne hos SEAS tilkobles

15.29Endnu en gasturbine på Kyndbyværket kommer i gang

16.42Københavns Energi får tilladelse til at give DSB’s fjerntog strøm

Sture Lindahl, LTH/IEA


Genopretningen minut for minut4

Genopretningen minut for minut

16.57Systemet er stabilt nok, til at vindmøllerne gradvist kan tilkobles

18.18En dieselgenerator på Kyndbyværket sætter ud

18.25Asnæsværket blok 2 kommer i gang

18.33Asnæsværket blok 5 havarerer ved opstart og er ikke kommet i gang endnu

19.05NVE, NESA, KE og SEAS får tilladelse til at tilkoble resten af forbrugerne

Sture Lindahl, LTH/IEA


Conclusion

Conclusion

  • Outage of 20% of Sweden

  • Outage of 50% of Denmark

  • Voltage restoration time 1 hour

  • Load restoration was depending on start-up time of generating units

  • Outage cost about 1 000 MSEK

Sture Lindahl, LTH/IEA


Additional information

Additional Information

http://www.elkraft-system.dk/elkraft/dk/Nyheder.nsf

http//www.svk.se/

http://www.abebooks.com/

Sture Lindahl, LTH/IEA


  • Login