Non Linear Modelling and Control of Unified Power Flow Controller

Unified Power Flow Controller is modeled as a non linear system in order to apply a non linear control technique for the improvement of power flow in a Single Machine Infinite Bus system. The non linear system is linearized by Feedback Linearization technique .FBLC is able to linearize the non linear states of the system under all uncertainty conditions present. FBLC will also be track the references and control the converter operation. The non linear modelling of UPFC along with the FBLC control is done in MATLAB software. The UPFC along with FBLC control gives promising results on the stability of linearized system with guarantee that state information remains unaltered.