Comparative study of back-stepping controller and super twisting sliding mode controller for indirect power control of wind generator
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This paper presents the application nonlinear control to regulate the rotor currents and control the active and reactive powers generated by the Doubly Fed Induction Generator used in the Wind Energy Conversion System (WECS). The proposed control strategies are based on Lyapunov stability theory and include back-stepping control (BSC) and super-twisting sliding mode control. The overall WECS model and control scheme are developed in MATLAB/Simulink and the simulation results have shown that the BSC leads to superior performance and improved transient response as compared to the STSMC controller.
KeywordsWind energy DFIG Nonlinear control Back-stepping control Super-twisting control Sliding mode control Lyapunov stability
The authors would like to acknowledge the financial support of the Algeria’s Ministry of Higher Education and Scientific Research. This work was supported by L2GEGI laboratory at the Tiaret University, Algeria in collaboration with Polytechnic national school, Algiers, Algeria.
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