Title :
A discrete state-space model for SSR stabilizing controller design for TCSC compensated systems
Author :
Kabiri, K. ; Henschel, S. ; Marti, J.R. ; Dommel, H.W.
Author_Institution :
Univ. of British Columbia, Vancouver, BC, Canada
Abstract :
A sampled-data model for a thyristor controlled series capacitor compensated system is derived for use in stabilizing controller design for subsynchronous modes of oscillation. The model is a refinement of the existing models based on the Poincare/spl acute/ mapping techniques already developed in the literature. The special features of the model are to increase the sampling frequency to six times the synchronous frequency and to directly express the small signal variation of the state of the whole system on the variation of the thyristor firing angles. The effectiveness of the model is shown by using it to design an all stabilizing controller for the IEEE First SSR Benchmark Model.
Keywords :
compensation; control system synthesis; power capacitors; sampling methods; stability; state-space methods; thyristor applications; discrete state-space model; poincare mapping technique; sampled-data model; sampling frequency; subsynchronous resonance stabilizing controller design; synchronous frequency; thyristor firing angle; thyristor-controlled series capacitor; Control system synthesis; Damping; Frequency; Impedance; Passive filters; Power capacitors; Resonance; Sampling methods; Thyristors; Linear time-invariant (LTI) systems; sampled-data; subsynchronous resonance; thyristor-controlled series capacitor (TCSC);
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2004.832385
