| Type of Document |
Master's Thesis |
| Author |
Maram, Sandeep
|
| URN |
etd-01252007-090855 |
| Title |
A New Special Protection Scheme for Power System Controlled Separation |
| Degree |
Master of Science |
| Department |
Electrical and Computer Engineering |
| Advisory Committee |
| Advisor Name |
Title |
| Mili, Lamine M. |
Committee Chair |
| Centeno, Virgilio A. |
Committee Member |
| Liu, Yilu |
Committee Member |
|
| Keywords |
- apparent impedance
- system separation
- transfer tripping
- out-of-step blocking
- Controlled separation
|
| Date of Defense |
2007-01-11 |
| Availability |
unrestricted |
Abstract
A new power system controlled separation scheme is proposed to prevent the propagation of cascading failures across a transmission network should it undergoes a major disturbance, thereby reducing the possibility of a large-scale blackout. This scheme is developed based on a set of conjectures, which state the following: (i) the locations of out-of-step operations are independent of the severity and the location of the initial faults; (ii) these out-of-step operations occur sequentially over a sufficiently long duration so that relay blocking and transfer tripping can take place to minimize the load-generation imbalance in the formed islands. To verify these conjectures, extensive dynamic stability simulations are executed on a 30-bus and a 517-bus system, which exhibit characteristics suitable for this study. Furthermore, we verify that these out-of-step operations do depend on the prevailing system topology and the operating conditions.
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| Files |
| Filename |
Size |
Approximate Download Time
(Hours:Minutes:Seconds)
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56K Modem |
ISDN (64 Kb) |
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Sandeep_Maram_THESIS_Final_UpdatedFeb.pdf |
535.82 Kb |
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