Neural Sliding Mode Control of a permanent magnet synchronous generator PMSG integrated in a wind system

This paper deals with the use of a Permanent Magnet Synchronous Generator (PMSG) for the production of wind energy and the injection of the energy produced into a power grid. The aim of this work is to improve the performance of the permanent magnet synchronous generator (PMSG) connected to the electrical grid. The sliding mode control (SMC) is part of the family of variable structure controllers, i.e. controls switching between several different control laws. This latter control induces in practice high frequency switching known as chattering. These switching can excite unwanted dynamics that risk destabilizing, deteriorating or even destroying the system studied. There are several methods to reduce this phenomenon, among these methods the combined sliding mode and neural control (NSMC). A comparative study between the classic (SMC) control and the proposed (NSMC) has been made. The classic SMC regulator gives rise to a wide band of oscillations of the power and current quantities, which results in a high harmonic rate (THD) compared to the NSMC control.