Gn. Taranto et Jh. Chow, A ROBUST FREQUENCY-DOMAIN OPTIMIZATION TECHNIQUE FOR TUNING SERIES COMPENSATION DAMPING CONTROLLERS, IEEE transactions on power systems, 10(3), 1995, pp. 1219-1225
This paper presents a systematic design procedure based on the H-infin
ity optimization technique for tuning robust damping controllers of th
yristor controlled series compensation (TCSC) for a wide range of oper
ating conditions. A new mixed model-matching robustness formulation is
used in the design. The model-matching part requires a nominal dampin
g controller, and the robustness part allows for the tuning of the con
troller. The formulation simplifies the selection of weights for tunin
g the controller. The procedure is used to design TCSC controllers to
enhance the local mode damping in a single-machine system and the inte
r-area mode damping in a 2-area 4-machine system.