Finite Time Control of unified power flow controller for power flow reference tracking

This article presents a Finite Time Controller (FTC) applied to a unified power flow controller (UPFC) to achieve rapid and finite time reference signal tracking of power flow in presence of plant uncertainties. Finite Time Control is a nonlinear control based on the Lyapunov´s stability theory to cancel disturbances and overcome the drawback of traditional linear PI control, which is typically tuned for one specific operating condition. In this article, we first establish a state space complete dynamic model of UPFC based on Kirchhoff´s equations and (d-q) transformation, and then FTC law is developed for the UPFC system. The proposed control is validated via a detailed simulation on a two bus system. Simulation results show power, effectiveness, robustness and accuracy of the proposed controller.