Higher Order Sliding Mode Control for PMSG in wind power conversion system

Abstract

Renewable Energy system (such as: Wind Turbine (WT)) provides a dispatching power and large-scale energy recovery. This latter is a suitable technology in Grid power systems due to its high variability and high levels of renewable generation. A variable Speed WT is one essential objective of the researches in this area. Hence, this paper proposed and discusses an efficient design based on a Higher Order Sliding Mode Control (HOSMC) applied to Permanent Magnet Synchronous Generator (PMSG). The HOSMC can provide a feedback linearization controller utilizes the torque estimate to ensure a torque reference. The HOSMC feedback provides the relationship between the turbine speed and an additional input. To achieve a stable error dynamics and speed tracking, a linear control theory is proposed. The applied speed reference is selected according to a classical MPPT algorithm. The reliability and the effectiveness of the proposed design is given by the Matlab / Simulink environment, from which, the obtained results have been treated and discussed in details.