Enhanced Performances of the DFIG Power Control Using the Exponential Reaching Law Based Sliding Mode Control

This paper describes the design and the application of the exponential reaching law based first order sliding mode control. The proposed algorithm is applied to a two-levels back-to-back inverter used in the DFIG wind power conversion system topology. This study mainly aims to test the performance of this nonlinear controller and its effects on the chattering phenomenon. The approach is applied on both rotor side converter and grid side converter in order to control the DFIG stator power and power flow between the rotor and the power grid respectively. The simulation results for 2 MW DFIG are evaluated to demonstrate the effectiveness of the proposed control technique.