Thesis (MScEng)--University of Stellenbosch, 2002. / ENGLISH ABSTRACT: This thesis presents results of a study on the small-signal stability of a single-machine
infinite-bus power system. Conditions of generator loading and network impedance are
identified that require additional stability support. Two methods of stability enhancement are
investigated, namely the power system stabilizer and the controlled series capacitor. Both
stabilizers employ the conventional (classic) control structure, and parameters are evaluated
for optimum performance using an integral-of-the-squared-error-based method. Results for
damping capability versus generator loading and system impedance were generated. The
ability of the power system stabilizer and controlled series capacitor to provide stability
support is compared. This comparison is based on (a) the ability to provide more damping
torque when needed, and (b) the amount of damping torque contributed by the stabilizer. / AFRIKAANSE OPSOMMING: Hierin word die resultate van 'n studie op die klein-sein stabiliteit van 'n enkel-masjien
oneindige-bus kragstelsel weergegee. Kondisies van generator belasting en netwerk
impedansie waar dempings-ondersteuning benodig word, word geïdentifiseer. Twee metodes
van stabiliteits-verbetering word ondersoek, naamlik die kragstelstel stabiliseerder en die
beheerde serie kapasitor. Beide stabiliseerders maak gebruik van die konvensionele
(klassieke) beheerstruktuur, waarvan parameters geëvalueer word deur gebruik te maak van
'n integraal-van-die-vierkant-fout-gebaseerde metode. Resultate vir dempingsvermoë
teenoor generator belasting en stelsel impedansie word verkry. Die vermoë van die
kragstelsel stabiliseerder en beheerde serie kapasitor om stabiliteits-ondersteuning te verskaf,
word vergelyk. Hierdie vergelyking is gebasseer op (a) die vermoë om meer
dempingswrinkrag te voorsien wanneer benodig, en (b) die hoeveelheid dempingswrinkrag
deur die stabiliseerder bygedra.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/53013 |
| Date | 12 1900 |
| Creators | Fourie, Gert |
| Contributors | Beukes, H. J., Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : Stellenbosch University |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | Unknown |
| Type | Thesis |
| Format | 260 p. : ill. |
| Rights | Stellenbosch University |
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