Abstract
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.
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