Nonlinear Robust Adaptive Control for Static Var Compensator Based on Backstepping and Dissipative System Theory

Abstract:

Based on adaptive backstepping nonlinear control scheme and dissipative system theory, the robust adaptive nonlinear controller is designed for single machine infinite bus (SMIB) power system with static Var compensator (SVC), which conquers the obstacle of relative degree one of passivity feedback scheme. During the procedure of designing controller and parameter estimator, the uncertainties of disturbances and the damping coefficient are taken into account; therefore, the designed controller has the ability of robustness and adaptive estimation. The globally uniformly boundness of all the states in the system and the asymptotical stability of the system errors are verified by the theories. Simulation experiments show that not only the transient stability of the SVC power system is guaranteed, but also the robustness performance is significantly improved even with disturbances.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 5935-5940
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.5935
• Online since: January 2012
• Authors: Lei Zhang, Ai Min Zhang, Jiu Qiang Han, Hang Zhang
• Keywords: Adaptive Backstepping, Dissipative Theory, Robust Control, Static VAR Compensator (SVC)

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