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Voltage Collapse in Electrical Power Systems

Voltage Collapse in Electrical Power Systems. by Zivan Zabar ECE Dept. Voltage collapse. Voltage collapse of an electric distribution network means that the system can no longer maintain voltage at the load site. Electrical grid (system). Electrical grid consists of three main components:

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Voltage Collapse in Electrical Power Systems

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  1. Voltage Collapse in Electrical Power Systems by Zivan Zabar ECE Dept

  2. Voltage collapse Voltage collapse of an electric distribution network means that the system can no longer maintain voltage at the load site.

  3. Electrical grid (system) Electrical grid consists of three main components: • Generating plants • Transmission and distribution networks • Customer loads

  4. Transmission of electric power(Bonneville Power Adm.)

  5. Basic Components of Power System(H. Saadat)

  6. Subtransmission Grid & Low-Voltage Secondary Ntwk(W)

  7. Voltage Collapse(DC circuit) From and we get: and

  8. Voltage Collapse(DC circuit); cont.

  9. AC power where:

  10. Power transfer over a transmission line Active power: Reactive Power:

  11. Power transfer curves

  12. Voltage collapse(AC circuit) Power [W]: Reactive power [VAr] Defining:

  13. Voltage collapse (AC circuit) cont.

  14. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  15. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  16. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  17. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  18. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  19. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  20. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]Summary of the situation at 4:10:38

  21. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  22. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  23. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  24. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  25. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

  26. August 14, 2003 Blackout--Sequence of events[US/Canada Outage Task Force; 9/12/03]

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