WSEAS Transactions on Systems and Control
Print ISSN: 1991-8763, E-ISSN: 2224-2856
Volume 9, 2014
Centralized Sliding Mode Control of Power System with UPFC
Authors: ,
Abstract: In this article is proposed a Centralized Sliding Mode Control (CSMC) applied to a UPFC device for controlling power flow and enhancing power system stability. First, we establish a state-space dynamic model of UPFC based on Kirchhoff’s equations and (d-q) transformation. This model includes the two voltage source inverters and the DC bus voltage link. Furthermore, in order to cancel the effect of uncertainties which can affect this plant, we develop a centralized version of sliding mode control based on this state model. In the case where the proposed control scheme is used, we simulate the operation of UPFC equipping a High Voltage (HV) electrical line interconnecting two stable nodes. The simulation results show that it is possible and achievable to control the power flow with satisfactory performances regardless of the parameter uncertainties affecting the model plant.
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Keywords: FACTS, UPFC, Electrical Power System, Real Power, Reactive Power, Sliding Mode Control, Lyapunov Function
Pages: 464-472
WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 9, 2014, Art. #48