A second‐order sliding‐mode control for a real time emulator of a wind power system synchronized with electrical network

This paper was focused on the implementation of experimental test bench for a wind power generator (WPG) connected to the electrical network. The objectives of this work are to validate the test bench functionality and to investigate in real time a high-order sliding-mode control (SMC) scheme applied to control the WPG. This study has three main purposes. The first one is the development of the SMC technique to ensure a control method insensitive against nonlinear behavior of wind systems. The second one is the experimental implementation of this SMC scheme. The third one is a synchronization technique that has been presented in a grid-connected power inverter to adapt the WPG voltage to the grid voltage. A comparative study between the experimental and simulation results demonstrates the functionality of the test platform and the robustness of the SMC in real time.