Power system stabilizer and controlled series capacitor small-signal stability performance analysis

[摘要] ENGLISH ABSTRACT:This thesis presents results of a study on the small-signal stability of a single-machineinfinite-bus power system. Conditions of generator loading and network impedance areidentified that require additional stability support. Two methods of stability enhancement areinvestigated, namely the power system stabilizer and the controlled series capacitor. Bothstabilizers employ the conventional (classic) control structure, and parameters are evaluatedfor optimum performance using an integral-of-the-squared-error-based method. Results fordamping capability versus generator loading and system impedance were generated. Theability of the power system stabilizer and controlled series capacitor to provide stabilitysupport is compared. This comparison is based on (a) the ability to provide more dampingtorque when needed, and (b) the amount of damping torque contributed by the stabilizer.

[发布机构] Stellenbosch University