ABSTRACT
In recent years wind energy application, as an economic type of renewable energy, is rapidly growing. Wind turbine electricity generation depends on wind velocity and structure. The wind structure with the permanent magnet synchronous generator is an efficient configuration for variable speed systems. Its advantages include fewer repair requirements, direct current excitation and high power-to-weight ratios. In the existing literature, distinct control schemes are suggested for grid integrated operation of variable speed wind generators and most of those schemes are based on conventional proportional integral controllers. In this chapter, an maximum power point tracking (MPPT) method is developed for stand-alone wind power generation systems via the T-S fuzzy-model-based approach. It aims to develop a fuzzy observer for state feedback control under partial state measurement. The chapter proposes a fuzzy sliding mode controller in the framework of descriptor systems, such that the MPPT control performance will be achieved in a finite time interval.
