Adaptive robust control of thyristor controlled series compensation

This paper deals with third-order nonlinear system model identification applied when modelling the relation of firing angle and equivalent reactance of a thyristor controlled series compensation (TCSC). The mathematical representation chosen is nonlinear autoregressive moving average with exogenous inputs due to its capability in modelling nonlinear systems and in using prior information. The methodology for incorporation of prior knowledge is presented, and particular attention is given to the case of using information about resonant static response.