On the nonlinear control of TCSC

Abstract

The paper reviews modeling of thyristor-controlled series capacitors (TCSC) which are highly nonlinear systems with continuous and discontinuous states, and proposes three nonlinear controllers for it: (1) an approximate feedback linearization control (FLC); (2) a sliding surface-like design; (3) control in transformed coordinates. Detailed (switched) time-domain simulations are used to verify the control performance achieved by the three controllers.